US3872945A - Motorized walker - Google Patents
Motorized walker Download PDFInfo
- Publication number
- US3872945A US3872945A US441507A US44150774A US3872945A US 3872945 A US3872945 A US 3872945A US 441507 A US441507 A US 441507A US 44150774 A US44150774 A US 44150774A US 3872945 A US3872945 A US 3872945A
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- United States
- Prior art keywords
- walker
- frame assembly
- user
- pair
- rear wheels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
- A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
- A61G5/042—Front wheel drive
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1051—Arrangements for steering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for disabled persons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/20—Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D51/00—Motor vehicles characterised by the driver not being seated
- B62D51/02—Motor vehicles characterised by the driver not being seated the driver standing in the vehicle
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- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/30—Specific positions of the patient
- A61G2200/36—Specific positions of the patient standing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
- A61G2203/14—Joysticks
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
- A61G2203/72—General characteristics of devices with special adaptations, e.g. for safety or comfort for collision prevention
- A61G2203/723—Impact absorbing means, e.g. bumpers or airbags
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- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1005—Wheelchairs having brakes
- A61G5/1013—Wheelchairs having brakes engaging the wheel
- A61G5/1018—Wheelchairs having brakes engaging the wheel on the running surface
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1038—Manual lifting aids, e.g. frames or racks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for disabled persons
- A61H2003/043—Wheeled walking aids for disabled persons with a drive mechanism
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for disabled persons
- A61H2003/046—Wheeled walking aids for disabled persons with braking means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/24—Personal mobility vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S180/00—Motor vehicles
- Y10S180/907—Motorized wheelchairs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S297/00—Chairs and seats
- Y10S297/04—Wheelchair
Definitions
- a powered walker for use by disabled persons in a standing position within the walker comprises a foursided frame extending vertically upward from a plat-' form with the frame being supported below the platform for transportational movement by a pair of front wheels, one of which is powered, and by a pair of rear wheels which can be turned for steering the walker.
- the driven front wheel is powered by an electric motor, the operation of which is controlled by the walker user who operates a switch which is electrically connected to the motor through a control circuit. Steering is effected by movement of a hand-operated tiller which is connected through linkages to the rear wheels. Hand-operated brakes are also provided.
- the walker carries its own rechargeable battery, as well as padded supports to aid the walker user.
- MOTORIZED WALKER BACKGROUND OF THE INVENTION This invention relates to wheeled walkers and, more specifically, to occupant Controlled, powered walkers.
- Wheelchairs have been employed for a considerable time for transporting persons who are physically handicapped in their legs (and sometimes in other parts of their bodies). Although wheelchairs have become highly sophisticated, they do not provide the physical and psychological benefits to handicapped persons that are provided by walkers which permit a person to posi tion himself in a substantially standing position.
- Walkers present a number of problems which are not encountered in wheelchairs. Such problems arise from the fact that a users body extends substantially above the center of gravity of a walker, thereby leading to the possibility of tipping over. If a walker is made with a very large base area, maneuverability'of the walker is restricted. Additionally, it becomes more difficult to provide support for the walker user.
- walkers featured power by other than foot power and because the users legs were no longer needed for power, included a platform for supporting the user above the ground. Examples of such walkers are described in US Pat. No. 3,107,105, issued Oct. I5, 1963, and entitled Standing Support for Paraplegics and US. Pat. No. 3,249,368, issued May 3, 1966, and entitled Ambulating Device for Paraplegics.”
- the former featured a hand-driven, power system, while the latter required the user to pole the walker along. Both walkers thus required the user to expend his own limited energy in propelling the walker along. Additionally, possibly because of the stability problems associated with self-propulsion and/or the self-propulsion mechanism of the former patent, these walkers had quite large cross-sectional areas thereby limiting their usefulness around furniture and their maneuverability.
- the walker comprises a vertically-oriented, four-sided frame which terminates at its lower end in a footsupporting platform and which is supported for transportational movement by a pair of front wheels which are mounted independently of each other and by a pair of interconnected rear wheels.
- One of the front wheels is powered by a chain drive from an electrical motor which can be controlled by a walker user by manipulation of a toggle switch which is electrically connected to the motor through appropriate control circuits.
- the rear wheels are turnable for steering the walker, with their movement being controlled by the walker user by operation of a tiller which is connected by linkage to the rear wheels.
- the walker is also provided with handoperated brakes which act on the front wheels. To make the walker an essentially self-contained unit, it is also provided with a rechargeable battery.
- One of the sides of the frame forms a gate for providing access to the interior ofthe walker.
- Pads are carried interiorly of the walker to provide support to the walker user.
- the herein-described walker is characterized by sev eral advantageous features. It has a relatively small horizontal cross-section which, together with the walkers interior padded supports, provides the walker user with good support. Additionally, the small horizontal crosssection permits the walker to be moved through smaller openings between furniture, etc., thereby allowing it to move nearly approximate the movements of a person without a physical handicap. Furthermore, its small cross-sectional area places its user closer to wheelchairs and other objects to which the user may want access, for example, when entering and leaving the walker. In spite of its relatively high ratio of height to base area, it can be safely used with little fear that it will tip over, such as when a user negotiates the walker around furniture. This is because a large proportion of the walkers weight is distributed so that it has a low center of gravity. Additionally, stability is enhanced by providing traction at one of the front wheels and steering at the rear wheels.
- this walker is electrically powered and, thus, in marked contrast to prior art user-powered walkers, its operation does not use up the limited energy ofmost disabled persons who are confined to wheelchairs. Additionally, all of the controls (for braking, steering and power) are conveniently positioned for operation by the walker user. Furthermore, its steering in combination with its small cross-sectional area make it highly maneuverable.
- FIG. 1 is a perspective view of the frame assembly of the herein-described motorized walker.
- FIG. 2 is a perspective view of the complete motorized walker.
- FIG. 3 is a plan view of the underside of the motorized walker showing the rear wheel steering mechanism.
- FIG. 4 is a partial sectional view of a front wheel and drive assembly.
- FIG. 5 is a perspective view of the backrest and relay box support device.
- FIG. 6 is a schematic diagram of the electrical circuit employed to power the walker.
- FIG. 7 is a plan view of an alternative embodiment of a cross-member for use in a foldable version of the described walker.
- each of the latter comprises vertical front and rear posts 18, 20, respectively, which are interconnected, as by welding, by vertically-spaced-apart side rails 22, 24, 26.
- the upper side rail or handrail 22 of each side frame unit 14, 16 can serve as an arm rest and can be grasped by a user when entering or shifting position within the walker.
- the lower side rail 26 of each side ,frame unit 14, 16 may be provided (as could other sides of the walker) with a forward extension 28 which may be covered by a resilient, e.g., rubber, bumper 30 for absorbing shocks if the walker is caused to bump into furniture, etc.
- the rear or back of the walker 10 is formed by a pair of vertically-spaced-apart cross-members 32, 34.
- These cross-members 32, 34 and other members of the frame assembly 12 function not only as rigidifying and strengthening means, but they also function as support means for other components of the walker 10 as will be described herein.
- Support means are carried at the lower extremities or margin of the frame assembly 12 for supporting a walker user thereon.
- Such support means comprises a pair of arcuate side members 36, 38, each of which is connected at its forward end to the lower end of a front post 18 and at its rearward end to a lower side rail 26 at a point on the latter adjacent to the corresponding rear post so that the arcuate side members 36, 38 are located vertically below the lower side rails 26, 26.
- the support means further comprises a tubular frame 40 which is joined to the arcuate side members 36, 38 by short connector tubes 42.
- a platform 44 is carried on the tubular frame 40. The latter may be provided with an upstanding rear edge flange 46 and with upstanding side edge flanges 48, 50 to aid in preventing movement of a users foot off the platform 44.
- the frame assembly 12 is supported for transportational movement over a surface by wheel means which comprises a pair of independently-mounted front wheels 52, 54 and a pair of interconnected rear wheels 56, 58.
- the front wheels 52, 54 are fixed for forwardreverse movement only.
- One of the front wheels 54 is powered and serves as the drive wheel, while the other front wheel 52 is free-wheeling.
- Each of the front wheels 52, 54 is rotatably mounted between the tubular support frame 40 and side frame units 14, 16 on rigid half axles 60, 61, respectively, which are rotatably attached at their respective oute'r ends to the lower ends of front posts 18 of the side frame units 14, 16 and at their respective inner ends to the forward tubular member of the frame 40.
- the rear wheels 56, 58 are each rotatably carried in a castor 62, 63, respectively.
- the latter are mounted for swivel movement in vertical sleeves 64, 66, which are joined to the frame assembly 12 at the rear ends of the lower side rails 26 which extend behind the rear posts 20.
- a gate 76 is hingedly connected at its one side to one front post and carries a vertically-movable latch pin 78 adjacent its other side for locking engagement with an apertured boss 80 attached to the other front post.
- the gate 76 carries a knee pad 82 which is attached to its inner surface. The height of the gate 76 above the platform 44 is established so that the pad 82 will be in contact with a users legs at the level of the users knees to provide front support to the user.
- a bracket 84 is connected to and depends from the upper rear cross-member 32. To this bracket 84, an elongated, rigid support 86 is adjustably connected and carries a back pad 88 at its upper end. A restraining belt 90 is attached to the rear of the back pad 88 for encircling the body of a walker user to further aid in supporting the user.
- Brake means are provided to prevent the walker 10 from moving when not under power and to facilitate entry and exit of a user.
- the brake means comprises dual brake systems 92, 94, only one of which will be described since they are identical to each other.
- the right hand brake system 92 comprises an intermediate connector bar 96 which is sufficiently long to extend from a point adjacent to the right front wheel 52 to a point along the front right post 18 which is readily accessible to the right hand of a user of the walker 10.
- the intermediate connector bar 96 is pivotally connected through pin 97 to a brake bar 98, which is medially pivotally connected through pin 99 to the right front post 18 adjacent the right front wheel 52 and which is provided with a flange 100 at its forward end for engagement with the right front wheel when the brake is on.
- the intermediate connector bar 96 is pivotally connected through pin 101 to a brake lever 102 which, in turn, is pivotally connected at its forward end through pin 103 to a tab 104 which is fixedly attached to the right front post 18 so that a walker user can easily reach the brake levers 102, thereby placing them in a hand-operable position.
- Steering means are provided for changing the direction of the rear wheels 56, 58 in order to control the di' rectional movement of the walker 10.
- Such steering means (for a right-handed person) comprises a tiller 106 which is positioned a spaced distance above, for example, the right handrail 22, so that it is comfortable to operate.
- the tiller 106 is fixedly connected to a vertically-aligned shaft 108, which is free to rotate as the tiller is rotated and which extends downwardly through a bushing 110 which is attached to the handrail 22 and terminates in a second bushing 112 which is attached to a horizontal plate 113 inboard of the right arcuate side member 36.
- a master arm 114 is fixedly joined to the tiller shaft 108 adjacent to the lower bushing 112 and is pivotally connected through a pin 115 to a control arm 116.
- the control arm 116 is pivotally connected through apin 117 to a castor arm 118 which is affixed to and extends inwardly from the right castor 62.
- a second castor arm 120 is also affixed to and extends generally forwardly from the right castor 62.
- This castor arm 120 is pivotally connected through a pin 121 to one end of a connector arm 122 which is pivotally connected at its other end through a pin 123 to a castor arm 124 which is affixed to and extends generally forwardly from the left castor 63.
- the tiller 106 in order to turn right, the tiller 106 is rotated clockwise, which then causes the tiller shaft 108 to be similarly rotated about its own axis.
- the master arm 114 is caused to turn clockwise. This moves the control arm 116 rearward causing the right castor 62 to be rotated counter-clockwise.
- the left castor 63 is also rotated counter-clockwise, thereby enabling the walker to move forward or backward to the right.
- the rear wheels 56, 58 when turned, are oriented at different angles to the direction of movement of the walker 10. This results from the normal functioning of the described steering means and is intentional. lts pur pose is to maintain all four wheels on circular arcs having a common center, for all angles of turn, and thus to prevent any skidding of tire surfaces.
- Power means are provided to move the walker 10 forward or rearward so that, together with the described steering means, the walker can be made to move straight forward or back, to turn to the left or right in forward or back directions, and to circle.
- the power means includes a number of components with control being initiated by a toggle switch 130 mounted in the forward end of the tiller 106.
- the toggle switch 130 has forward and rearward on positions and an intermediate off" position. It is electrically connected through wires 132, which terminate in an electrical housing 134 which is mounted to the bracket 84 to which the backrest pad support 86 is also attached. This housing 134 encloses the wiring shown in dotted outline in FIG.
- relay circuit means which briefly comprises a number of relays 136, 138, a charging jack 140 and braking resis tor 142 (which may generally be referred to as relay circuit means).
- Electrical leads 150 (FIG. 2) connect the circuits in the electrical housing 134 to the battery 74. In turn, the latter is electrically connected through the relay circuit means and through an electrical cable 151 to a motor 160 which is mounted at one side of the platform 44 adjacent to the left, lower side member 26.
- the motor 160 is connected to the left front wheel 54 by drive means which comprises a chain 162 which extends over a hub sprocket 164 on the motor and over a plate sprocket 165 on the wheel.
- drive means which comprises a chain 162 which extends over a hub sprocket 164 on the motor and over a plate sprocket 165 on the wheel.
- Other drive means such as belts and pulleys, could be used in place of the chain and sprockets shown.
- a wire guard 166 may be attached to the platform 44 to cover the chain 162 and sprockets 164, 165.
- the walker is prepared for motion by moving the main switch 168 to the on position, connecting point P to point R.
- the positive battery voltage is available at point A of relay 136 and thence to point L of relay 138; the negative side of the battery voltage is simultaneously available at point D of relay 136 and thence to point S on the motor 160.
- the positive voltage is applied to point T of the motor 160, forward movement of the walker will be provided. This is obtained by moving'the toggle switch to the forward position, connecting positive voltage from point R to point X, to point Y, to point N on power relay 138. Since point M, the
- relay 138 actuates, connecting point J to point L, to point B, to point A, to positive voltage, and forward movement results.
- the toggle switch 130 is moved to the reverse position, connecting point U to point W and point X to point 2, once again activating power relay 138 as before, plus activating reverse relay 136 by applying positive 'voltage from point P to point R to point U to point W, to point H on the coil of relay 136.
- relay 136 Since point G, the opposite end of the activating coil of relay 136 is already permanently connected to negative voltage, relay 136 activates, now placing negative voltage on point D to point F, to point L, to point J to point T on motor and positive voltage on point P, to point R, to point A, to point C, to point S on motor 160-and reverse movement occurs. Whenever power relay 138 is unactivated (the position shown in FIG.
- braking resistor 142 is connected across points S and T of motor 160, which, if in motion will act as a generator until the walker coasts to a stop and provides energy into braking resistor 142 which will dissipate said energy as heat and assist in stopping either'forward or reverse movement of the walker and thus act as a dynamic brake.
- a battery charger V 170 is connected to electrical housing 134 at charging jack 140 and plugged into an ordinary wall socket to supply AC.
- Main switch 168 is moved to the charge position, connecting point p to point Q and thus supplying charging current to the battery 74.
- the powered walker thus described has a minimal base area which makes it practical for use by a disabled person who must negotiate between objects such as furniture, and has a height which makes this walker convenient for use by an adult. From these dimensions, it can be seen that the walker 10 could be tipped over. To minimize this problem and still retain the walkers usefulness clue to its small base area, the Walker 10, as described, has been provided with front wheel drive, with only one front wheel being powered (the other being free-wheeling), and has been designed so that it has a minimally low center of gravity by, for'example, placing the battery 74 and the platform 44 as low as possible.
- this walker 10 could be made foldable by positioning the electrical units, such as the battery 74, to one side, by making the structural members extending across the back and base of the walker in such a way that they would each comprise a pair of telescoping sections 80, 82 with removable locking pins 84 extending therethrough when the walker 10 is in use as shown by way ofexample, in FIG.
- a powered walker which comprises: an upstanding rigid frame assembly comprising interconnected, rigid frame members defining (a) vertical sides which define a vertical space for receiving a users body and defining (b) an entryway in one side thereof, said frame assembly connected to and terminating at its lower end in support means for supporting a walker user thereon in standing position within said frame assembly; a gate hingedly connected to said frame assembly along one side of said entryway and sized to extend across said entryway for closing engagement with said frame assembly along the opposing side of said entryway; wheel means connected to said frame assembly for supporting said frame assembly above a surface for transportational movement thereover, said wheel means comprising a pair of independently-mounted front wheels and a pair ofinterconnected turnable rear wheels; electrical power means carried within said frame assembly; drive means connected to said electrical power means and to one of said front wheels; switch means mounted adjacent the upper end of said frame assembly for manual operation by a walker user and electrically connected to said electrical power means; steering means connected at a lower end to said rear wheels and rotatably connected
- said electrical power means comprises an electric storage battery, a motor, and relay circuit means for producing forward and reverse movement of said walker, said relay circuit means being electrically connected to said switch means, to said motor, and to said battery.
- a powered walker which comprises:
- an upstanding rigid frame assembly comprising a pair of side frames, a back, and horizontal support means at its lower end for supporting a user thereon in standing position within said walker, said side frames defining a front entryway;
- front wheels each being rotatably carried on an axle connected to said frame assembly to prevent directional turning of said front wheels and said rear wheels each being mounted for turning movement for changing the direction of movement of said walker in response to steering means connected at its lower end to said rear wheels and rotatably connected at its upper end to one of said side frames for hand operation by said walker user when in a standing position;
- ' brake means carried on said frame assembly and having a pair of lower ends positioned adjacent one pair of said front or back wheels for engagement with said one pair of wheels when said braking means is applied and having upper ends in handoperable position for said walker user;
- relay circuit means carried on said frame assembly and electrically connected to said motor
- an electric storage battery mounted within said frame assembly adjacent said support means and electrically connected to said motor through said switch means.
- the walker of claim 3 which further includes:
- padded supports mounted on, and interior of, said frame assembly to support said walker user in front at about the knees of said user and in back at the back of said user.
- the walker of claim 5 which further includes belt means attached to said back of said frame assembly and positioned to pass around the waist of said walker user.
- each of said side frame includes a top member which serves as a handrail for said walker user and wherein said steering means comprises:
- a tiller positioned adjacent one of said handrails for rotational movement with respect to said frame assembly; an elongated, vertical rod fixedly connected at its upper end to said tiller and rotatably connected to said frame assembly for rotation with said tiller; and
- linkage means connected to said elongated rod and to said pair of rear wheels for causing said rear wheels to turn in response to movement of said tiller.
- steering means comprising (A) a tiller positioned ad- A P f W l which Comprises: 5 jacent one ofsaid handrails, (B) an elongated vertian upstanding "8 f f m y' rectangular Cally-disposed rod fixedly connected at its upper g i i gomprllsmg a P l frames, 3 end to said tiller and rotatably connected to said ac a ofnzoma ig b i til mterfcfnnect frame assembly to permit rotation of said tiller w1th mg Sal e rames at 6 0t Om ere) or res ect to said frame assembl and (C) linka e porting awalker user thereon in standing position 10 megns connected to the lowery end of Said Wlthin
- a glatealhnlgtecglyuftonknicgtegetgfinzgjmiafilesfirggfi an electric motor mounted on said frame assembly means and sized to extend across said entryway for fldjdcent a support m Closing engagement with Said other Side frame Said drive means interconnecting said electric motor and gate carrying a knee pad on its interior side for supl i s i g fi i F other of Sald from porting the legs of a walker user; 5 d b] a pair of independently-mounted front wheels and a re f fi Came l f m y pair of interconnected rear wheels supporting said a ec'mcd y congecte a g I frame assembly at its four corners above a surface swltc means mohlme F er or f Opera for transportational movement thereover, said.
- togthef l filler and elecmcauy front wheels each being rotatably carried on axles nectecuo relay Clrcult means; Connected to one of said Side frames and to Said an electric storage battery mounted within said frame assembly adjacent said support means and electrically connected to said motor through said switch means.
- the powered walker of claim 11 which further includes a back pad mounted on the back of said frame assembly for cooperation with said knee pad in supporting a walker user within said walker, said rectangular crosssection of said frame assembly being sized to just receive a walker user so that said pads effectively support said walker user.
- each said brake carried on each of said side frames adjacent the front of said walker, each said brake having a lower end brake flange positioned adjacent one of said front wheels for engagement therewith when said brake is applied and having an upper end lever in hand-operable position for a walker user to produce corresponding movement in intermediate
Abstract
Description
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US441507A US3872945A (en) | 1974-02-11 | 1974-02-11 | Motorized walker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US441507A US3872945A (en) | 1974-02-11 | 1974-02-11 | Motorized walker |
Publications (1)
Publication Number | Publication Date |
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US3872945A true US3872945A (en) | 1975-03-25 |
Family
ID=23753151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US441507A Expired - Lifetime US3872945A (en) | 1974-02-11 | 1974-02-11 | Motorized walker |
Country Status (1)
Country | Link |
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US (1) | US3872945A (en) |
Cited By (109)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4135535A (en) * | 1977-10-04 | 1979-01-23 | Temco Products, Inc. | Invalid walker apparatus |
US4157123A (en) * | 1978-03-06 | 1979-06-05 | Everest & Jennings, Inc. | Wheelchair electrical control circuit |
US4254948A (en) * | 1979-01-05 | 1981-03-10 | Jacobs Eugene A | Mechanized crutch |
US4364580A (en) * | 1979-09-29 | 1982-12-21 | The School of Bioengineering and Biophysics of the University of Dundee | Wheelchair |
FR2522265A1 (en) * | 1982-02-26 | 1983-09-02 | Inst Nat Sante Rech Med | ACTIVE BUILDING DEVICE |
WO1988001578A1 (en) * | 1986-08-25 | 1988-03-10 | Falcon Rehabilitation Products, Inc. | Combination wheelchair and walker apparatus |
US4776415A (en) * | 1987-07-13 | 1988-10-11 | Brice Michael L | Safety control for baby's walker |
US4802542A (en) * | 1986-08-25 | 1989-02-07 | Falcon Rehabilitation Products, Inc. | Powered walker |
US4907794A (en) * | 1987-12-24 | 1990-03-13 | Guardian Products, Inc. | Foldable rolling walker |
WO1990008526A1 (en) * | 1989-01-31 | 1990-08-09 | Edward John Reed | Motorised walking aid |
WO1992006661A1 (en) * | 1990-10-23 | 1992-04-30 | Etac Ab | Handbrake for wheeled vehicles |
US5137102A (en) * | 1986-08-25 | 1992-08-11 | Retec Pr, Inc. | Combination wheelchair and walker apparatus |
US5156176A (en) * | 1990-07-19 | 1992-10-20 | Doorenbos Daryl E | Stabilized walker device |
US5168947A (en) * | 1991-04-09 | 1992-12-08 | Rodenborn Eugene P | Motorized walker |
US5174590A (en) * | 1991-07-03 | 1992-12-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics & Space Administration | Compliant walker |
US5320122A (en) * | 1991-07-03 | 1994-06-14 | II Julius H. Jacobson | Combined walker and wheelchair |
US5348336A (en) * | 1993-02-09 | 1994-09-20 | Fernie Geoffrey R | Walking aid |
US5524720A (en) * | 1994-08-19 | 1996-06-11 | Lathrop; John | Powered walker having integrated parallel bars |
US5526893A (en) * | 1994-01-27 | 1996-06-18 | H. Eugene Mack | Physical therapy apparatus |
GB2307455A (en) * | 1995-11-23 | 1997-05-28 | Rehabilitation Services Ltd | Personal transport device for a standing driver |
US5701965A (en) * | 1993-02-24 | 1997-12-30 | Deka Products Limited Partnership | Human transporter |
US5716063A (en) * | 1995-03-20 | 1998-02-10 | Csia Research Foundation | Walking aid |
US5772234A (en) * | 1997-09-23 | 1998-06-30 | Luo; Chung-I | Configuring frame of walker |
US5937959A (en) * | 1995-09-25 | 1999-08-17 | Fujii; Naoto | Conveyance apparatus |
US5971091A (en) * | 1993-02-24 | 1999-10-26 | Deka Products Limited Partnership | Transportation vehicles and methods |
EP1020173A3 (en) * | 1999-01-13 | 2001-06-20 | MAQUET Aktiengesellschaft | Walking aid |
US6302230B1 (en) | 1999-06-04 | 2001-10-16 | Deka Products Limited Partnership | Personal mobility vehicles and methods |
US6378883B1 (en) * | 2000-01-11 | 2002-04-30 | Aaron J. Epstein | Motorized walker/wheelchair and method |
US6446742B1 (en) * | 2000-06-08 | 2002-09-10 | Robert Coburn Wilson | Wheeled platform vehicle |
US6538411B1 (en) | 2000-10-13 | 2003-03-25 | Deka Products Limited Partnership | Deceleration control of a personal transporter |
US20030085064A1 (en) * | 2001-11-06 | 2003-05-08 | Turner Patrick E. | Motorized cart with hub gear motor system |
US6581714B1 (en) | 1993-02-24 | 2003-06-24 | Deka Products Limited Partnership | Steering control of a personal transporter |
WO2003057126A1 (en) * | 2002-01-04 | 2003-07-17 | Hill-Rom Services, Inc. | Braking apparatus for a patient support |
US6595530B2 (en) * | 2001-03-29 | 2003-07-22 | American Healthcare Solutions, Inc. | Medical walker |
US20030205419A1 (en) * | 1993-02-24 | 2003-11-06 | Kamen Dean L. | Riderless stabilization of a balancing transporter |
US6651766B2 (en) | 1993-02-24 | 2003-11-25 | Deka Products Limited Partnership | Personal mobility vehicles and methods |
US6659211B2 (en) * | 2002-01-31 | 2003-12-09 | Charles Esposito | Invalid mobile cart with enclosure |
US20040007398A1 (en) * | 1994-05-27 | 2004-01-15 | Burl Amsbury | Non-linear control of a balancing vehicle |
US20040007425A1 (en) * | 1994-05-27 | 2004-01-15 | Kamen Dean L. | Self-balancing ladder and camera dolly |
US20040011573A1 (en) * | 1993-02-24 | 2004-01-22 | Kamen Dean L. | Guided control of a transporter |
US20040054634A1 (en) * | 2000-10-02 | 2004-03-18 | Tak Seung Ho | Sale method and system employing product price varying dependent upon valid date of product |
US20040055796A1 (en) * | 2002-07-12 | 2004-03-25 | Dean Kamen | Motion control of a transporter |
US20040069543A1 (en) * | 1993-02-24 | 2004-04-15 | Kamen Dean L. | Motion control of a transporter |
US6749034B2 (en) | 2000-05-11 | 2004-06-15 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US20040118622A1 (en) * | 1994-05-27 | 2004-06-24 | Morrell John B. | Speed limiting for a balancing transporter accounting for variations in system capability |
US20040159473A1 (en) * | 2000-05-11 | 2004-08-19 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US6789640B1 (en) | 2000-10-13 | 2004-09-14 | Deka Products Limited Partnership | Yaw control for a personal transporter |
US6796396B2 (en) | 1999-06-04 | 2004-09-28 | Deka Products Limited Partnership | Personal transporter |
US20050064998A1 (en) * | 2003-09-22 | 2005-03-24 | Leann Hill | Passive child therapy tricycle |
US6874591B2 (en) | 1994-05-27 | 2005-04-05 | Deka Products Limited Partnership | Speed limiting for a balancing transporter |
US20050121866A1 (en) * | 1999-06-04 | 2005-06-09 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US20050126832A1 (en) * | 2002-06-14 | 2005-06-16 | Deka Products Limited Partnership | Non-linear control of a balancing vehicle |
US20050211477A1 (en) * | 2004-03-23 | 2005-09-29 | Deka Products Limited Partnership | Footrest tuck mechanism |
US6965206B2 (en) | 2000-10-13 | 2005-11-15 | Deka Products Limited Partnership | Method and system for fail-safe motor operation |
US6969079B2 (en) | 2002-06-05 | 2005-11-29 | Deka Products Limited Partnership | Multiple-passenger transporter |
US6983813B1 (en) | 2004-08-16 | 2006-01-10 | Wright Brandi N | Remote controlled and motorized baby walker |
US20060011398A1 (en) * | 2000-03-01 | 2006-01-19 | Kamen Dean L | Multiple-passenger transporter |
US7000933B2 (en) | 2000-03-01 | 2006-02-21 | Deka Products Limited Partnership | Method for attaching a carrier to a balancing transporter |
US7004271B1 (en) | 1999-08-31 | 2006-02-28 | Deka Products Limited Partnership | Dynamic balancing vehicle with a seat |
US20060108165A1 (en) * | 2002-06-11 | 2006-05-25 | Dean Kamen | Vehicle control by pitch modulation |
US20060108156A1 (en) * | 2002-06-11 | 2006-05-25 | Heinzmann John D | Vehicle control by pitch modulation |
NL1028058C2 (en) * | 2005-01-18 | 2006-07-19 | Univ Delft Tech | Rollator for helping disabled or elderly person walk, has steerable front wheels designed to be turned together |
US7210544B2 (en) | 2002-07-12 | 2007-05-01 | Deka Products Limited Partnership | Control of a transporter based on attitude |
US20070176063A1 (en) * | 2006-01-19 | 2007-08-02 | Hill-Rom Services, Inc. | Patient support with mobile iv stand transport handle |
US20070185587A1 (en) * | 2005-06-03 | 2007-08-09 | Sony Corporation | Mobile object apparatus, mobile object system, imaging device and method, and alerting device and method |
US20070216117A1 (en) * | 2006-01-19 | 2007-09-20 | Hill-Rom Services, Inc. | Stretcher having hand actuated wheel braking apparatus |
US20080086815A1 (en) * | 2006-10-13 | 2008-04-17 | Kappeler Ronald P | User Interface and Control System for Powered Transport Device of a Patient Support Apparatus |
US20080141459A1 (en) * | 2006-10-13 | 2008-06-19 | Hamberg Stephen R | Push handle with rotatable user interface |
US20080161990A1 (en) * | 2006-08-11 | 2008-07-03 | Segway Inc. | Apparatus and Method for Pitch State Estimation for a Vehicle |
US7445217B1 (en) * | 2007-07-19 | 2008-11-04 | Donald J Price | Walk aid |
US7540342B1 (en) | 2002-03-21 | 2009-06-02 | Robert John Ein | Virtual walker apparatus |
US20090188731A1 (en) * | 2008-01-29 | 2009-07-30 | Zerhusen Robert M | Push handle with pivotable handle post |
US20090218150A1 (en) * | 1999-09-15 | 2009-09-03 | Heimbrock Richard H | Patient support apparatus with powered wheel |
US20100114468A1 (en) * | 2008-11-06 | 2010-05-06 | Segway Inc. | Apparatus and method for control of a vehicle |
US7740099B2 (en) | 1999-06-04 | 2010-06-22 | Segway Inc. | Enhanced control of a transporter |
US7810822B2 (en) | 2006-01-19 | 2010-10-12 | Hill-Rom Services, Inc. | Stretcher having hand actuated caster braking apparatus |
US20100288575A1 (en) * | 2009-05-12 | 2010-11-18 | James Graham Irvine | Personal mobility device |
US20110083270A1 (en) * | 2009-09-10 | 2011-04-14 | Bhai Aziz A | Powered transport system and control methods |
US20110083274A1 (en) * | 2007-04-26 | 2011-04-14 | Newkirk David C | Patient support apparatus with motorized traction control |
US20110118898A1 (en) * | 2009-11-17 | 2011-05-19 | National Taiwan University | Rehabilitation Device |
US7953537B2 (en) | 2008-02-29 | 2011-05-31 | Hill-Rom Services, Inc. | Algorithm for power drive speed control |
US7962256B2 (en) | 2006-08-11 | 2011-06-14 | Segway Inc. | Speed limiting in electric vehicles |
US20110166753A1 (en) * | 2010-01-07 | 2011-07-07 | Chung-Huang Yu | Walking assistance device with detection members |
CN1886111B (en) * | 2003-09-26 | 2011-11-02 | 阿德里安·范伊登 | Inter-convertible single person type transporting aid |
US20120018233A1 (en) * | 2010-07-20 | 2012-01-26 | Chang Yoon Young | Walking-assistant device |
US8141669B1 (en) * | 2009-02-12 | 2012-03-27 | Laymaster Larry A | Motorized personal transporter |
US20120187661A1 (en) * | 2009-09-22 | 2012-07-26 | Seong Yoon Kim | Pushable frame with generators that convert kinetic energy into electric energy |
US8733719B2 (en) | 2010-11-12 | 2014-05-27 | Wildcard Enterprises Llc | Method and apparatus for use in management of medical intravenous pole assemblies |
US8740240B1 (en) * | 2013-12-23 | 2014-06-03 | Maynard I. Merel | User-operated mobility apparatus |
US8967672B2 (en) * | 2011-08-31 | 2015-03-03 | Mazda Motor Corporation | Vehicle-body structure of vehicle and manufacturing method of the same |
EP2561849A4 (en) * | 2010-04-22 | 2015-04-29 | Rosana Antunes De Sousa | Multifunctional locomotor |
US20150182393A1 (en) * | 2012-09-18 | 2015-07-02 | Murata Manufacturing Co., Ltd. | Pushcart |
WO2015073521A3 (en) * | 2013-11-18 | 2015-11-19 | New York Institute Of Technology | Motorized walker |
US9421144B2 (en) | 2014-03-07 | 2016-08-23 | Eugene Kalinowski | Motorized air walker and suspension system for paralyzed persons |
US9707143B2 (en) | 2012-08-11 | 2017-07-18 | Hill-Rom Services, Inc. | Person support apparatus power drive system |
EP3231687A1 (en) * | 2016-04-15 | 2017-10-18 | EP Equipment Co., Ltd. | Vehicle drive system |
CN107789125A (en) * | 2017-10-12 | 2018-03-13 | 浙江理工大学 | Aid in the power assisting device and its boosting method of lower limb inconvenience person standing walking |
US10092469B1 (en) | 2017-06-12 | 2018-10-09 | Torrance D. Lillevold | Rotational transfer platform system |
US20180338876A1 (en) * | 2017-05-23 | 2018-11-29 | William Baer | Powered Pedestrian Apparatus |
US10220843B2 (en) | 2016-02-23 | 2019-03-05 | Deka Products Limited Partnership | Mobility device control system |
USD846452S1 (en) | 2017-05-20 | 2019-04-23 | Deka Products Limited Partnership | Display housing |
US20190151185A1 (en) * | 2017-11-22 | 2019-05-23 | Disco Drives Kirschey | Electrically driven wheeled walker |
US10802495B2 (en) | 2016-04-14 | 2020-10-13 | Deka Products Limited Partnership | User control device for a transporter |
US10908045B2 (en) | 2016-02-23 | 2021-02-02 | Deka Products Limited Partnership | Mobility device |
US10926756B2 (en) | 2016-02-23 | 2021-02-23 | Deka Products Limited Partnership | Mobility device |
USD915248S1 (en) | 2017-05-20 | 2021-04-06 | Deka Products Limited Partnership | Set of toggles |
US11399995B2 (en) | 2016-02-23 | 2022-08-02 | Deka Products Limited Partnership | Mobility device |
IT202100019274A1 (en) | 2021-08-02 | 2023-02-02 | Renzo Chinol | Automated walker |
US11681293B2 (en) | 2018-06-07 | 2023-06-20 | Deka Products Limited Partnership | System and method for distributed utility service execution |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1235973A (en) * | 1917-02-24 | 1917-08-07 | Frank Heid | Wheeled chair. |
US1890396A (en) * | 1930-05-31 | 1932-12-06 | Nancy E Maphet | Invalid's support |
US2733754A (en) * | 1956-02-07 | Invalid walker | ||
US2892506A (en) * | 1956-01-17 | 1959-06-30 | James A Slater | Electrically driven invalid chair |
US2989139A (en) * | 1959-08-07 | 1961-06-20 | Pantek Stanley | Mobile stand |
US3107105A (en) * | 1960-06-10 | 1963-10-15 | Russell W Heriford | Standing support for paraplegics |
US3770073A (en) * | 1968-10-01 | 1973-11-06 | W Meyer | Foldable invalid chair |
US3794132A (en) * | 1972-08-16 | 1974-02-26 | Lakeside Mfg Inc | Self-propelled wheelchair |
-
1974
- 1974-02-11 US US441507A patent/US3872945A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733754A (en) * | 1956-02-07 | Invalid walker | ||
US1235973A (en) * | 1917-02-24 | 1917-08-07 | Frank Heid | Wheeled chair. |
US1890396A (en) * | 1930-05-31 | 1932-12-06 | Nancy E Maphet | Invalid's support |
US2892506A (en) * | 1956-01-17 | 1959-06-30 | James A Slater | Electrically driven invalid chair |
US2989139A (en) * | 1959-08-07 | 1961-06-20 | Pantek Stanley | Mobile stand |
US3107105A (en) * | 1960-06-10 | 1963-10-15 | Russell W Heriford | Standing support for paraplegics |
US3770073A (en) * | 1968-10-01 | 1973-11-06 | W Meyer | Foldable invalid chair |
US3794132A (en) * | 1972-08-16 | 1974-02-26 | Lakeside Mfg Inc | Self-propelled wheelchair |
Cited By (215)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4135535A (en) * | 1977-10-04 | 1979-01-23 | Temco Products, Inc. | Invalid walker apparatus |
US4157123A (en) * | 1978-03-06 | 1979-06-05 | Everest & Jennings, Inc. | Wheelchair electrical control circuit |
US4254948A (en) * | 1979-01-05 | 1981-03-10 | Jacobs Eugene A | Mechanized crutch |
US4364580A (en) * | 1979-09-29 | 1982-12-21 | The School of Bioengineering and Biophysics of the University of Dundee | Wheelchair |
FR2522265A1 (en) * | 1982-02-26 | 1983-09-02 | Inst Nat Sante Rech Med | ACTIVE BUILDING DEVICE |
EP0088035A1 (en) * | 1982-02-26 | 1983-09-07 | Institut National De La Sante Et De La Recherche Medicale (Inserm) | Motorized walking-aid |
US4802542A (en) * | 1986-08-25 | 1989-02-07 | Falcon Rehabilitation Products, Inc. | Powered walker |
WO1988001578A1 (en) * | 1986-08-25 | 1988-03-10 | Falcon Rehabilitation Products, Inc. | Combination wheelchair and walker apparatus |
US4809804A (en) * | 1986-08-25 | 1989-03-07 | Falcon Rehabilitation Products, Inc. | Combination wheelchair and walker apparatus |
US5137102A (en) * | 1986-08-25 | 1992-08-11 | Retec Pr, Inc. | Combination wheelchair and walker apparatus |
US4776415A (en) * | 1987-07-13 | 1988-10-11 | Brice Michael L | Safety control for baby's walker |
US4907794A (en) * | 1987-12-24 | 1990-03-13 | Guardian Products, Inc. | Foldable rolling walker |
WO1990008526A1 (en) * | 1989-01-31 | 1990-08-09 | Edward John Reed | Motorised walking aid |
US5156176A (en) * | 1990-07-19 | 1992-10-20 | Doorenbos Daryl E | Stabilized walker device |
WO1992006661A1 (en) * | 1990-10-23 | 1992-04-30 | Etac Ab | Handbrake for wheeled vehicles |
US5168947A (en) * | 1991-04-09 | 1992-12-08 | Rodenborn Eugene P | Motorized walker |
US5174590A (en) * | 1991-07-03 | 1992-12-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics & Space Administration | Compliant walker |
US5320122A (en) * | 1991-07-03 | 1994-06-14 | II Julius H. Jacobson | Combined walker and wheelchair |
US5348336A (en) * | 1993-02-09 | 1994-09-20 | Fernie Geoffrey R | Walking aid |
US7546889B2 (en) | 1993-02-24 | 2009-06-16 | Deka Products Limited Partnership | Guided control of a transporter |
US8322477B2 (en) | 1993-02-24 | 2012-12-04 | Deka Products Limited Partnership | Motion control of a transporter |
US6779621B2 (en) | 1993-02-24 | 2004-08-24 | Deka Products Limited Partnership | Riderless stabilization of a balancing transporter |
US5701965A (en) * | 1993-02-24 | 1997-12-30 | Deka Products Limited Partnership | Human transporter |
US20040011573A1 (en) * | 1993-02-24 | 2004-01-22 | Kamen Dean L. | Guided control of a transporter |
US6651766B2 (en) | 1993-02-24 | 2003-11-25 | Deka Products Limited Partnership | Personal mobility vehicles and methods |
US5791425A (en) * | 1993-02-24 | 1998-08-11 | Deka Products Limited Partnership | Control loop for transportation vehicles |
US20030205419A1 (en) * | 1993-02-24 | 2003-11-06 | Kamen Dean L. | Riderless stabilization of a balancing transporter |
US5971091A (en) * | 1993-02-24 | 1999-10-26 | Deka Products Limited Partnership | Transportation vehicles and methods |
US20040069543A1 (en) * | 1993-02-24 | 2004-04-15 | Kamen Dean L. | Motion control of a transporter |
US7090040B2 (en) | 1993-02-24 | 2006-08-15 | Deka Products Limited Partnership | Motion control of a transporter |
US20060249313A1 (en) * | 1993-02-24 | 2006-11-09 | Deka Products Limited Partnership | Motion control of a transporter |
US6581714B1 (en) | 1993-02-24 | 2003-06-24 | Deka Products Limited Partnership | Steering control of a personal transporter |
US7370713B1 (en) | 1993-02-24 | 2008-05-13 | Deka Products Limited Partnership | Personal mobility vehicles and methods |
US5526893A (en) * | 1994-01-27 | 1996-06-18 | H. Eugene Mack | Physical therapy apparatus |
US20040007398A1 (en) * | 1994-05-27 | 2004-01-15 | Burl Amsbury | Non-linear control of a balancing vehicle |
US6915878B2 (en) | 1994-05-27 | 2005-07-12 | Deka Products Limited Partnership | Self-balancing ladder and camera dolly |
US6868931B2 (en) | 1994-05-27 | 2005-03-22 | Deka Products Limited Partnership | Speed limiting for a balancing transporter accounting for variations in system capability |
US6827163B2 (en) | 1994-05-27 | 2004-12-07 | Deka Products Limited Partnership | Non-linear control of a balancing vehicle |
US6874591B2 (en) | 1994-05-27 | 2005-04-05 | Deka Products Limited Partnership | Speed limiting for a balancing transporter |
US20040007425A1 (en) * | 1994-05-27 | 2004-01-15 | Kamen Dean L. | Self-balancing ladder and camera dolly |
US20040118622A1 (en) * | 1994-05-27 | 2004-06-24 | Morrell John B. | Speed limiting for a balancing transporter accounting for variations in system capability |
US5524720A (en) * | 1994-08-19 | 1996-06-11 | Lathrop; John | Powered walker having integrated parallel bars |
US5716063A (en) * | 1995-03-20 | 1998-02-10 | Csia Research Foundation | Walking aid |
US5937959A (en) * | 1995-09-25 | 1999-08-17 | Fujii; Naoto | Conveyance apparatus |
GB2307455A (en) * | 1995-11-23 | 1997-05-28 | Rehabilitation Services Ltd | Personal transport device for a standing driver |
US5772234A (en) * | 1997-09-23 | 1998-06-30 | Luo; Chung-I | Configuring frame of walker |
EP1020173A3 (en) * | 1999-01-13 | 2001-06-20 | MAQUET Aktiengesellschaft | Walking aid |
US9442491B2 (en) | 1999-06-04 | 2016-09-13 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US20050121866A1 (en) * | 1999-06-04 | 2005-06-09 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US7740099B2 (en) | 1999-06-04 | 2010-06-22 | Segway Inc. | Enhanced control of a transporter |
US7023330B2 (en) | 1999-06-04 | 2006-04-04 | Deka Products Limited Partnership | Transporter oscillating alarm |
US20100222994A1 (en) * | 1999-06-04 | 2010-09-02 | Segway Inc. | Enhanced Control of a Transporter |
US6302230B1 (en) | 1999-06-04 | 2001-10-16 | Deka Products Limited Partnership | Personal mobility vehicles and methods |
US7857088B2 (en) | 1999-06-04 | 2010-12-28 | Segway Inc. | Enhanced control of a transporter |
US20040055804A1 (en) * | 1999-06-04 | 2004-03-25 | Kamen Dean L. | Transporter oscillating alarm |
US7479872B2 (en) | 1999-06-04 | 2009-01-20 | Deka Products Limited Partnership | Transporter oscillating alarm |
US6796396B2 (en) | 1999-06-04 | 2004-09-28 | Deka Products Limited Partnership | Personal transporter |
US6367817B1 (en) | 1999-06-04 | 2002-04-09 | Deka Products Limited Partnership | Personal mobility vehicles and methods |
US7275607B2 (en) | 1999-06-04 | 2007-10-02 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US9188984B2 (en) | 1999-06-04 | 2015-11-17 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US20060061460A1 (en) * | 1999-06-04 | 2006-03-23 | Dean Kamen | Transporter oscillating alarm |
US9411336B2 (en) | 1999-06-04 | 2016-08-09 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US9442492B2 (en) | 1999-06-04 | 2016-09-13 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US7004271B1 (en) | 1999-08-31 | 2006-02-28 | Deka Products Limited Partnership | Dynamic balancing vehicle with a seat |
US20080035395A1 (en) * | 1999-08-31 | 2008-02-14 | Deka Products Limited Partnership | Dynamic Balancing Vehicle with a Seat |
US7690447B2 (en) | 1999-08-31 | 2010-04-06 | Deka Products Limited Partnership | Dynamic balancing vehicle with a seat |
US8397846B2 (en) | 1999-09-15 | 2013-03-19 | Hill-Rom Services, Inc. | Patient support apparatus with powered wheel |
US8240410B2 (en) | 1999-09-15 | 2012-08-14 | Hill-Rom Services, Inc. | Patient support apparatus with powered wheel |
US20090218150A1 (en) * | 1999-09-15 | 2009-09-03 | Heimbrock Richard H | Patient support apparatus with powered wheel |
US6378883B1 (en) * | 2000-01-11 | 2002-04-30 | Aaron J. Epstein | Motorized walker/wheelchair and method |
US7000933B2 (en) | 2000-03-01 | 2006-02-21 | Deka Products Limited Partnership | Method for attaching a carrier to a balancing transporter |
US7407175B2 (en) | 2000-03-01 | 2008-08-05 | Deka Products Limited Partnership | Multiple-passenger transporter |
US20060011398A1 (en) * | 2000-03-01 | 2006-01-19 | Kamen Dean L | Multiple-passenger transporter |
US7407024B2 (en) | 2000-05-11 | 2008-08-05 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US8267206B2 (en) | 2000-05-11 | 2012-09-18 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US7014000B2 (en) | 2000-05-11 | 2006-03-21 | Hill-Rom Services, Inc. | Braking apparatus for a patient support |
US7828092B2 (en) | 2000-05-11 | 2010-11-09 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US7273115B2 (en) | 2000-05-11 | 2007-09-25 | Hill-Rom Services, Inc. | Control apparatus for a patient support |
US20060108158A1 (en) * | 2000-05-11 | 2006-05-25 | Kummer Joseph A | Control apparatus for a patient support |
US20110035883A1 (en) * | 2000-05-11 | 2011-02-17 | John David Vogel | Motorized traction device for a patient support |
US20070158921A1 (en) * | 2000-05-11 | 2007-07-12 | Vogel John D | Motorized traction device for a patient support |
US6877572B2 (en) | 2000-05-11 | 2005-04-12 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US6749034B2 (en) | 2000-05-11 | 2004-06-15 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US7083012B2 (en) | 2000-05-11 | 2006-08-01 | Hill-Rom Service, Inc. | Motorized traction device for a patient support |
US20050236193A1 (en) * | 2000-05-11 | 2005-10-27 | Vogel John D | Motorized traction device for a patient support |
US7090041B2 (en) | 2000-05-11 | 2006-08-15 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US20040159473A1 (en) * | 2000-05-11 | 2004-08-19 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US8051931B2 (en) | 2000-05-11 | 2011-11-08 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US7195253B2 (en) | 2000-05-11 | 2007-03-27 | Hill Rom Services, Inc | Motorized traction device for a patient support |
US20040163175A1 (en) * | 2000-05-11 | 2004-08-26 | Hill-Rom Services, Inc. | Motorized traction device for a patient support |
US6446742B1 (en) * | 2000-06-08 | 2002-09-10 | Robert Coburn Wilson | Wheeled platform vehicle |
US20040054634A1 (en) * | 2000-10-02 | 2004-03-18 | Tak Seung Ho | Sale method and system employing product price varying dependent upon valid date of product |
US6789640B1 (en) | 2000-10-13 | 2004-09-14 | Deka Products Limited Partnership | Yaw control for a personal transporter |
US7157875B2 (en) | 2000-10-13 | 2007-01-02 | Deka Products Limited Partnership | Method and system for fail-safe motor operation |
US20060125433A1 (en) * | 2000-10-13 | 2006-06-15 | Dean Kamen | Method and system for fail-safe motor operation |
US6538411B1 (en) | 2000-10-13 | 2003-03-25 | Deka Products Limited Partnership | Deceleration control of a personal transporter |
US6815919B2 (en) | 2000-10-13 | 2004-11-09 | Deka Products Limited Partnership | Accelerated startup for a balancing personal vehicle |
US20030141832A1 (en) * | 2000-10-13 | 2003-07-31 | Field J. Douglas | Accelerated startup for a balancing personal vehicle |
US6965206B2 (en) | 2000-10-13 | 2005-11-15 | Deka Products Limited Partnership | Method and system for fail-safe motor operation |
US6595530B2 (en) * | 2001-03-29 | 2003-07-22 | American Healthcare Solutions, Inc. | Medical walker |
US7108090B2 (en) * | 2001-11-06 | 2006-09-19 | Assembled Products Corporation | Motorized cart with hub gear motor system |
WO2003039937A3 (en) * | 2001-11-06 | 2004-02-26 | Assembled Product Corp | Motorized cart with hub gear motor system |
US20030085064A1 (en) * | 2001-11-06 | 2003-05-08 | Turner Patrick E. | Motorized cart with hub gear motor system |
EP2135593A3 (en) * | 2002-01-04 | 2010-08-18 | Hill-Rom Services, Inc. | Braking apparatus for a patient support |
EP2269552A1 (en) * | 2002-01-04 | 2011-01-05 | Hill-Rom Services, Inc. | Braking apparatus for a patient support |
WO2003057126A1 (en) * | 2002-01-04 | 2003-07-17 | Hill-Rom Services, Inc. | Braking apparatus for a patient support |
US6659211B2 (en) * | 2002-01-31 | 2003-12-09 | Charles Esposito | Invalid mobile cart with enclosure |
US7540342B1 (en) | 2002-03-21 | 2009-06-02 | Robert John Ein | Virtual walker apparatus |
US6969079B2 (en) | 2002-06-05 | 2005-11-29 | Deka Products Limited Partnership | Multiple-passenger transporter |
US20060108156A1 (en) * | 2002-06-11 | 2006-05-25 | Heinzmann John D | Vehicle control by pitch modulation |
US20090099762A1 (en) * | 2002-06-11 | 2009-04-16 | Segway Inc. | Vehicle Control by Pitch Modulation |
US7690452B2 (en) | 2002-06-11 | 2010-04-06 | Deka Products Limited Partnership | Vehicle control by pitch modulation |
US7757794B2 (en) | 2002-06-11 | 2010-07-20 | Segway, Inc. | Vehicle control by pitch modulation |
US20060108165A1 (en) * | 2002-06-11 | 2006-05-25 | Dean Kamen | Vehicle control by pitch modulation |
US7900725B2 (en) | 2002-06-11 | 2011-03-08 | Segway Inc. | Vehicle control by pitch modulation |
US20050126832A1 (en) * | 2002-06-14 | 2005-06-16 | Deka Products Limited Partnership | Non-linear control of a balancing vehicle |
US20050236215A1 (en) * | 2002-07-12 | 2005-10-27 | Dean Kamen | Dynamically stable transporter controlled by lean |
US9545963B2 (en) | 2002-07-12 | 2017-01-17 | DEKA Products Limited Partnership LLP | Control of a transporter based on attitude |
US20040055796A1 (en) * | 2002-07-12 | 2004-03-25 | Dean Kamen | Motion control of a transporter |
US7174976B2 (en) | 2002-07-12 | 2007-02-13 | Deka Products Limited Partnership | Dynamically stable transporter controlled by lean |
US7210544B2 (en) | 2002-07-12 | 2007-05-01 | Deka Products Limited Partnership | Control of a transporter based on attitude |
US20050064998A1 (en) * | 2003-09-22 | 2005-03-24 | Leann Hill | Passive child therapy tricycle |
CN1886111B (en) * | 2003-09-26 | 2011-11-02 | 阿德里安·范伊登 | Inter-convertible single person type transporting aid |
US7182166B2 (en) | 2004-03-23 | 2007-02-27 | Deka Products Limited Partnership | Footrest tuck mechanism |
US20050211477A1 (en) * | 2004-03-23 | 2005-09-29 | Deka Products Limited Partnership | Footrest tuck mechanism |
US6983813B1 (en) | 2004-08-16 | 2006-01-10 | Wright Brandi N | Remote controlled and motorized baby walker |
US9400502B2 (en) | 2004-09-13 | 2016-07-26 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US9429955B2 (en) | 2004-09-13 | 2016-08-30 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US9459627B2 (en) | 2004-09-13 | 2016-10-04 | Deka Products Limited Partership | Control of a personal transporter based on user position |
US9411339B2 (en) | 2004-09-13 | 2016-08-09 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US9442486B2 (en) | 2004-09-13 | 2016-09-13 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
US9529365B2 (en) | 2004-09-13 | 2016-12-27 | Deka Products Limited Partnership | Control of a personal transporter based on user position |
NL1028058C2 (en) * | 2005-01-18 | 2006-07-19 | Univ Delft Tech | Rollator for helping disabled or elderly person walk, has steerable front wheels designed to be turned together |
US8467886B2 (en) * | 2005-06-03 | 2013-06-18 | Sony Corporation | Mobile object apparatus, mobile object system, imaging device and method, and alerting device and method |
US20070185587A1 (en) * | 2005-06-03 | 2007-08-09 | Sony Corporation | Mobile object apparatus, mobile object system, imaging device and method, and alerting device and method |
US20070216117A1 (en) * | 2006-01-19 | 2007-09-20 | Hill-Rom Services, Inc. | Stretcher having hand actuated wheel braking apparatus |
US20070176063A1 (en) * | 2006-01-19 | 2007-08-02 | Hill-Rom Services, Inc. | Patient support with mobile iv stand transport handle |
US8387184B2 (en) | 2006-01-19 | 2013-03-05 | Hill-Rom Services, Inc. | Auto contour handle apparatus |
US8910329B2 (en) | 2006-01-19 | 2014-12-16 | Hill-Rom Services, Inc. | Patient support having auto contour |
US20070180621A1 (en) * | 2006-01-19 | 2007-08-09 | Hill-Rom Services, Inc. | Patient support apparatus having auto contour |
US7810822B2 (en) | 2006-01-19 | 2010-10-12 | Hill-Rom Services, Inc. | Stretcher having hand actuated caster braking apparatus |
US7922183B2 (en) | 2006-01-19 | 2011-04-12 | Hill-Rom Services, Inc. | Stretcher having hand actuated wheel braking apparatus |
US8069513B2 (en) | 2006-01-19 | 2011-12-06 | Hill-Rom Services, Inc. | Patient support apparatus having auto contour |
US7637464B2 (en) | 2006-01-19 | 2009-12-29 | Hill-Rom Services, Inc. | Patient support with mobile IV stand transport handle |
US20110231997A1 (en) * | 2006-01-19 | 2011-09-29 | Turner Jonathan D | Auto contour handle apparatus |
US7979179B2 (en) | 2006-08-11 | 2011-07-12 | Segway Inc. | Apparatus and method for pitch state estimation for a vehicle |
US7962256B2 (en) | 2006-08-11 | 2011-06-14 | Segway Inc. | Speed limiting in electric vehicles |
US20080161990A1 (en) * | 2006-08-11 | 2008-07-03 | Segway Inc. | Apparatus and Method for Pitch State Estimation for a Vehicle |
US7886377B2 (en) | 2006-10-13 | 2011-02-15 | Hill-Rom Services, Inc. | Push handle with rotatable user interface |
US7882582B2 (en) | 2006-10-13 | 2011-02-08 | Hill-Rom Services, Inc. | User interface and control system for powered transport device of a patient support apparatus |
US20080141459A1 (en) * | 2006-10-13 | 2008-06-19 | Hamberg Stephen R | Push handle with rotatable user interface |
US20110126354A1 (en) * | 2006-10-13 | 2011-06-02 | Hamberg Stephen R | User interface for power drive system of a patient support apparatus |
US8474073B2 (en) | 2006-10-13 | 2013-07-02 | Hill-Rom Services, Inc. | User interface for power drive system of a patient support apparatus |
US8756726B2 (en) | 2006-10-13 | 2014-06-24 | Hill-Rom Services, Inc. | User interface for power drive system of a patient support apparatus |
US20080086815A1 (en) * | 2006-10-13 | 2008-04-17 | Kappeler Ronald P | User Interface and Control System for Powered Transport Device of a Patient Support Apparatus |
EP1974706A1 (en) * | 2007-03-28 | 2008-10-01 | Hill-Rom Services, Inc. | Stretcher having hand actuated wheel braking apparatus |
US20110083274A1 (en) * | 2007-04-26 | 2011-04-14 | Newkirk David C | Patient support apparatus with motorized traction control |
US8056162B2 (en) | 2007-04-26 | 2011-11-15 | Hill-Rom Services, Inc. | Patient support apparatus with motorized traction control |
US7445217B1 (en) * | 2007-07-19 | 2008-11-04 | Donald J Price | Walk aid |
US20090188731A1 (en) * | 2008-01-29 | 2009-07-30 | Zerhusen Robert M | Push handle with pivotable handle post |
US7789187B2 (en) | 2008-01-29 | 2010-09-07 | Hill-Rom Services, Inc. | Push handle with pivotable handle post |
US8260517B2 (en) | 2008-02-29 | 2012-09-04 | Hill-Rom Services, Inc. | Patient support apparatus with drive wheel speed control |
US20110231075A1 (en) * | 2008-02-29 | 2011-09-22 | Bhai Aziz A | Patient support apparatus with drive wheel speed control |
US7953537B2 (en) | 2008-02-29 | 2011-05-31 | Hill-Rom Services, Inc. | Algorithm for power drive speed control |
US9477228B2 (en) | 2008-11-06 | 2016-10-25 | Segway, Inc. | Apparatus and method for control of a vehicle |
US9168966B2 (en) | 2008-11-06 | 2015-10-27 | Segway, Inc. | Apparatus and method for control of a vehicle |
US8467941B2 (en) | 2008-11-06 | 2013-06-18 | Segway, Inc. | Apparatus and method for control of a vehicle |
US20100114468A1 (en) * | 2008-11-06 | 2010-05-06 | Segway Inc. | Apparatus and method for control of a vehicle |
US8170780B2 (en) | 2008-11-06 | 2012-05-01 | Segway, Inc. | Apparatus and method for control of a vehicle |
US8141669B1 (en) * | 2009-02-12 | 2012-03-27 | Laymaster Larry A | Motorized personal transporter |
US7921953B2 (en) * | 2009-05-12 | 2011-04-12 | Jgi Holdings, Llc | Personal mobility device |
US8172023B1 (en) | 2009-05-12 | 2012-05-08 | Jgi Holdings, Llc | Personal mobility device |
US20100288575A1 (en) * | 2009-05-12 | 2010-11-18 | James Graham Irvine | Personal mobility device |
US8757308B2 (en) | 2009-09-10 | 2014-06-24 | Hill-Rom Services Inc. | Powered transport system and control methods |
US20110083270A1 (en) * | 2009-09-10 | 2011-04-14 | Bhai Aziz A | Powered transport system and control methods |
US20120187661A1 (en) * | 2009-09-22 | 2012-07-26 | Seong Yoon Kim | Pushable frame with generators that convert kinetic energy into electric energy |
US8881852B2 (en) * | 2009-09-22 | 2014-11-11 | Woosung Tech. Co., Ltd. | Pushable frame with generators that convert kinetic energy into electric energy |
US20110118898A1 (en) * | 2009-11-17 | 2011-05-19 | National Taiwan University | Rehabilitation Device |
US20110166753A1 (en) * | 2010-01-07 | 2011-07-07 | Chung-Huang Yu | Walking assistance device with detection members |
US8500143B2 (en) * | 2010-01-07 | 2013-08-06 | National Yang-Ming University | Walking assistance device with detection members |
EP2561849A4 (en) * | 2010-04-22 | 2015-04-29 | Rosana Antunes De Sousa | Multifunctional locomotor |
US8627909B2 (en) * | 2010-07-20 | 2014-01-14 | Lg Electronics Inc. | Walking-assistant device |
US20120018233A1 (en) * | 2010-07-20 | 2012-01-26 | Chang Yoon Young | Walking-assistant device |
US8733719B2 (en) | 2010-11-12 | 2014-05-27 | Wildcard Enterprises Llc | Method and apparatus for use in management of medical intravenous pole assemblies |
US8967672B2 (en) * | 2011-08-31 | 2015-03-03 | Mazda Motor Corporation | Vehicle-body structure of vehicle and manufacturing method of the same |
US9707143B2 (en) | 2012-08-11 | 2017-07-18 | Hill-Rom Services, Inc. | Person support apparatus power drive system |
US10588803B2 (en) | 2012-08-11 | 2020-03-17 | Hill-Rom Services, Inc. | Person support apparatus power drive system |
US9089460B2 (en) * | 2012-09-18 | 2015-07-28 | Murata Manufacturing Co., Ltd. | Pushcart |
US20150182393A1 (en) * | 2012-09-18 | 2015-07-02 | Murata Manufacturing Co., Ltd. | Pushcart |
WO2015073521A3 (en) * | 2013-11-18 | 2015-11-19 | New York Institute Of Technology | Motorized walker |
US8740240B1 (en) * | 2013-12-23 | 2014-06-03 | Maynard I. Merel | User-operated mobility apparatus |
US10299981B2 (en) | 2014-03-07 | 2019-05-28 | Eugene Kalinowski | Motorized air walker and suspension system for paralyzed persons |
US9421144B2 (en) | 2014-03-07 | 2016-08-23 | Eugene Kalinowski | Motorized air walker and suspension system for paralyzed persons |
US10908045B2 (en) | 2016-02-23 | 2021-02-02 | Deka Products Limited Partnership | Mobility device |
US10752243B2 (en) | 2016-02-23 | 2020-08-25 | Deka Products Limited Partnership | Mobility device control system |
US10220843B2 (en) | 2016-02-23 | 2019-03-05 | Deka Products Limited Partnership | Mobility device control system |
US11794722B2 (en) | 2016-02-23 | 2023-10-24 | Deka Products Limited Partnership | Mobility device |
US11679044B2 (en) | 2016-02-23 | 2023-06-20 | Deka Products Limited Partnership | Mobility device |
US11399995B2 (en) | 2016-02-23 | 2022-08-02 | Deka Products Limited Partnership | Mobility device |
US10926756B2 (en) | 2016-02-23 | 2021-02-23 | Deka Products Limited Partnership | Mobility device |
US10802495B2 (en) | 2016-04-14 | 2020-10-13 | Deka Products Limited Partnership | User control device for a transporter |
US11720115B2 (en) | 2016-04-14 | 2023-08-08 | Deka Products Limited Partnership | User control device for a transporter |
EP3231687A1 (en) * | 2016-04-15 | 2017-10-18 | EP Equipment Co., Ltd. | Vehicle drive system |
USD915248S1 (en) | 2017-05-20 | 2021-04-06 | Deka Products Limited Partnership | Set of toggles |
USD846452S1 (en) | 2017-05-20 | 2019-04-23 | Deka Products Limited Partnership | Display housing |
USD876994S1 (en) | 2017-05-20 | 2020-03-03 | Deka Products Limited Partnership | Display housing |
US20180338876A1 (en) * | 2017-05-23 | 2018-11-29 | William Baer | Powered Pedestrian Apparatus |
US10973715B2 (en) * | 2017-05-23 | 2021-04-13 | William Baer | Powered pedestrian apparatus |
US10092469B1 (en) | 2017-06-12 | 2018-10-09 | Torrance D. Lillevold | Rotational transfer platform system |
CN107789125B (en) * | 2017-10-12 | 2019-10-08 | 浙江理工大学 | Assist the power assisting device and its boosting method of lower limb inconvenience person standing walking |
CN107789125A (en) * | 2017-10-12 | 2018-03-13 | 浙江理工大学 | Aid in the power assisting device and its boosting method of lower limb inconvenience person standing walking |
US20190151185A1 (en) * | 2017-11-22 | 2019-05-23 | Disco Drives Kirschey | Electrically driven wheeled walker |
US10675206B2 (en) * | 2017-11-22 | 2020-06-09 | Disco Drives Kirschey Gmbh | Electrically driven wheeled walker |
US11681293B2 (en) | 2018-06-07 | 2023-06-20 | Deka Products Limited Partnership | System and method for distributed utility service execution |
IT202100019274A1 (en) | 2021-08-02 | 2023-02-02 | Renzo Chinol | Automated walker |
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