WO2004082450A1 - Automated electronic vacuum system and method - Google Patents
Automated electronic vacuum system and method Download PDFInfo
- Publication number
- WO2004082450A1 WO2004082450A1 PCT/US2003/020632 US0320632W WO2004082450A1 WO 2004082450 A1 WO2004082450 A1 WO 2004082450A1 US 0320632 W US0320632 W US 0320632W WO 2004082450 A1 WO2004082450 A1 WO 2004082450A1
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- WIPO (PCT)
- Prior art keywords
- vacuum
- sensor
- housing
- motor
- event
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
- A47L7/0047—Furniture or stationary devices with suction openings
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/38—Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
Definitions
- the present invention generally relates to electronic vacuum devices and, more particularly, relates to vacuum cleaners having sensor- triggered, automated operations.
- sweeping as a cleaning process has required a human to handle a broom and dustpan.
- the human manually sweeps with the broom to collect refuse strewn over an entire surface.
- the collected refuse is manually gathered, including by sweeping with the broom, into the dustpan.
- the refuse swept into the dustpan is then manually carried and disposed in a separate location, such as in a trash repository or can.
- the manual collection and gathering typically requires the human to twist, lean, bend-over, and otherwise make somewhat tortuous body movements and bends. It would be a significant improvement in the art and technology to further automate cleaning processes, such as certain of the manual efforts required for sweeping, collecting, gathering, and disposing of refuse via broom and dustpan.
- An embodiment of the invention is a system for vacuum cleaning.
- the system includes a housing, having an inlet and an outlet.
- the system also includes a vacuum motor connected to the inlet and the outlet of the housing.
- a controller connected to the vacuum motor, selectively controls the vacuum motor in response to an event.
- Another embodiment of the invention is a vacuum device.
- the vacuum device includes a housing having an inlet opening and an outlet opening.
- the housing also includes a viewable compartment formed by the housing.
- the vacuum device includes a vacuum motor.
- the vacuum motor has a suction inlet and a vent outlet, each connected to the viewable compartment.
- the suction inlet is connected to the inlet opening of the housing, and the vent outlet is connected to the outlet opening of the housing.
- An electric circuit is connected to the vacuum motor.
- the circuit is connected to a sensor.
- the sensor detects an external event and signals a microcontroller connected to the circuit and the sensor.
- the controller includes a three-position switch, a two-position switch, a light sensor, and a circuit connected to the three-position switch, the two-position switch, and the light sensor.
- the circuit logic together with states of the three-position switch, the two-position switch, and the light sensor, control vacuum operations.
- Another embodiment of the invention is a method of automated operation of a vacuum device.
- the method includes sensing an external event to the vacuum device and controlling power-on of the vacuum device based on the step of sensing.
- Yet another embodiment of the invention is a method of collecting swept refuse.
- the method includes positioning the refuse near a vacuum device, poweiing on the vacuum device, and sucking the refuse into the vacuum device.
- Another embodiment of the invention is a circuit for aiding alignment of a sensor to a beam.
- the circuit includes a viewable LED electrically connected to the sensor.
- the viewable LED increases in brightness as the sensor becomes more accurately aligned with the beam.
- FIG. 1 illustrates a perspective view of a system for vacuum operations controllable by sensor-triggered features, according to certain embodiments of the invention
- FIG. 2 illustrates a system for automated control of a motor, such as an electrical vacuum blower motor in a vacuum device, according to certain embodiments of the invention
- FIG. 3 illustrates a circuit for automated control of a motor, useable in the system of FlGs. 1 and 2, according to certain embodiments of the invention
- FIG. 4 illustrates states of operability for a motor, such as a vacuum blower motor in the system of FIGs. 1 and 2, according to certain embodiments of the invention
- FIG. 5 illustrates a method for automated control of a motor on start-up operations, according to certain embodiments of the invention
- FIG. 6 illustrates a method for automated control of a motor in shut-down operations, according to certain embodiments of the invention
- a system 100 for vacuum cleaning includes a housing 102.
- the housing 102 encloses a vacuum blower (not shown in detail in Fig. 1) and related electrical components (also not shown in detail in Fig. 1).
- the vacuum blower is electrically powered and controlled, is of a type sufficiently sized to fit within the housing 102, and provides adequate vacuum suction capability to pull into the housing 102 various refuse
- A (exemplified by "A" in Fig. 1) located near the housing.
- An inlet 102a of the housing is located at a base of the housing 102.
- the inlet 102a serves as intake to the vacuum blower.
- refuse (A) e.g., such as, for example, swept dirt, dust, hairs and other contaminant matter
- A refuse (e.g., such as, for example, swept dirt, dust, hairs and other contaminant matter) is vacuum sucked into the housing 102 at and through the inlet 102a.
- the housing 102 stands vertically upright, and fits in a comer or other inconspicuous location on a floor or other flat surface in a room or other location.
- the housing 102 is, for example, on the order of 1-2 feet tall, 6-12 inches wide and 6-10 inches deep, although any of a wide variety of other dimensions and configurations of the housing 102 is possible according to desired application, location, and use.
- the housing 102 is formed of molded plastic or hard rubber, or other suitably stable and firm materials.
- the housing 102 encloses various electrical and optical elements as herein after described. Additionally, the housing 102 provides certain control features for the system 100.
- a rotatable Man/Off/ Auto selector dial 104 extends from within the housing 102 and permits manual selection of the dial 104 by a human user of the system 100.
- the dial 104 permits manual designation of the system 100 mode (e.g., on, off or automatic), by a human user.
- a pushable manual activation button 105 powers on or off the vacuum blower of the system 100.
- the housing 102 includes a tilt able hinged canister compartment 106.
- the compartment 106 is hfngedly connected at a lower portion of the housing 102 and snaps upright to close the housing 102.
- a canister, sack, bag or other container (not shown in detail in Fig. 1) for retaining collected refuse within the housing 102.
- the housing 102 also includes a somewhat transparent window 108 formed in a side of the compartment 106, for viewing a level of refuse retained in the container within the compartment 106.
- the compartment 106 when hfngedly swung down from the upright closed position of the housing 102, reveals the container with refuse (e.g., for emptying, changing, removal and so forth).
- the housing 102 also provides guided locators for fitting one or more filters 110 in the system 100.
- the filters 110 are locatable at an outlet vent 102b portion of the housing 102, for outlet venting of the vacuum blower (not shown in detail) of the system 100 contained within the housing 102.
- the filters 108 are, for example, standard HEPA-type filters, and prevent escape of refuse sucked into the housing 102, via the vacuum blower at the inlet 102a, from escaping from the housing 102, via the outlet venting of the vacuum blower at the outlet 102b.
- Another feature of the housing 102, a motion sensor 112 is included as part of the housing 102 adjacent the inlet 102a of the housing 102.
- the sensor 112 is electrically connected to and is part of the electronic components (not shown in detail in Fig. 1) of the system 100.
- the sensor 112 electrically controls operations of the vacuum blower of the system 100, whenever the sensor 112 detects a triggering event, such as motion at or near the sensor 112 or lack of motion thereat.
- the sensor 112 is itself electrically operated and is, for example, optically equipped for activation upon sensing movement,
- the system 100 In operation of the system 100, the system 100 is 'Off' and is not supplied with electrical power whenever the dial 104 is rotated to the "Off' position.
- the vacuum blower and other electrical components of the system are inoperable. If the dial 104 is rotated to the 'Man" position, however, electrical power supplies the system 100. Then, the vacuum blower and other electrical components of the system are operable “on” and “off by the manual activation button 105.
- the button 105 is pressed on/off by a human user of the system 100.
- the usual operating mode of the system 100 is "Auto".
- the system 100 is in this "Auto” mode whenever the dial 104 is rotated to the "Auto” position.
- the system 100 powers on and off the vacuum blower based on detections of the sensor 112.
- the sensor 112 and related electrical components of the system 100 remain operational whenever the system 100 is in this "Auto” mode. Any motion optically detected by the sensor 112 triggers the electrical components of the system 100 to power on the vacuum blower of the system 100.
- the vacuum blower suctions air and refuse (A) into the inlet 102a.
- Refuse (A) passing into the inlet 102a is captured in the container of the compartment 106.
- Outlet air from the vacuum blower passes through the filters 110 at the outlet 102b of the housing 102, as the air (i.e., free of the refuse) vents from the housing 102.
- the vacuum blower When in "Auto” mode, the vacuum blower is powered on for a desired interval of time, for example, 5 seconds.
- the desired interval for power on is programmed in the system 100 via the electronic components.
- the desired interval can be selectively adjusted, as desired for the application, such as by mamtainfng the power on for the vacuum blower while any movement continues detected by the sensor 112, then followed by continued power on for a time interval after movement cease.
- the system 100 is operable, either automatically or manually, to power on the vacuum blower whenever desired for suction cleaning of refuse.
- a controller 200 of the system 100 controls operations of a motor 202, such as the vacuum blower of the system 100.
- the controller 200 is contained within the housing 102 (shown in Fig. 1) of the system 100.
- the vacuum blower of the system 100 is one type of the motor 202 controllable by the controller 200.
- the controller 200 is electrically or otherwise operationally connected to the motor 202 (e.g., the vacuum blower of the system 100).
- a motor control 204 of the controller 200 is connected to the motor 202.
- the motor control 204 serves for switching the power (and also possibly mode) on and off to the motor 202. Additionally or alternatively, the motor control 204 can serve to switch extent of power to the motor 202, for example, if the motor 202 is operable at variable speeds or in other varied manners.
- motor control 204 will depend upon the desired and inherent functionalities of the motor 202 and the control thereof by the motor control 204, as those skilled in the art will know and understand. In every event, however, the motor control 204
- the logical controller 206 of the controller 200 is connected to the motor control
- the logical controller 206 is connected to three inputs: a switch 208, a button 210, and a sensor 212.
- the switch 208 is, for example, an electrical or other control signal directed by and corresponding to rotatable positioning of the dial 104 of the housing 102 of the system 100 (shown in Fig. 1).
- the switch 208 is input to the controller 206 corresponding to the dial 104 position for the mode of the system 100, e.g., either "Off, "On", or "Auto".
- the button 210 is, for example, a manual or external input (such as a human user's input) to the power on operations of the vacuum blower of the system 100, e.g., either "on” or “of operation of the vacuum blower via a human user pressing of the manual button 105 of the system 100.
- the button 210 is, therefore, a signal input to the controller 206 because of manual control by a user.
- the sensor 212 is a signal input to the power on operations of the vacuum blower of the system, triggered by a particular event, such as detection of movement adjacent a sensing element like the sensor 112 of the system 100.
- the sensor 212 signals to the controller 206 that the particular event either is or is not occurring, for purposes of logical control of the motor control 204 by the controller 206.
- various states 300 for the logical operations by the logical controller 206 are shown in the table.
- the logical controller 206 based on the inputs of the switch 208, the button 210, and the sensor 212, dictates the operations of the motor control 204 to physically control the motor 202 either on or off.
- the motor 202 e.g., the vacuum blower of the system 100 of Fig. 1
- the motor 202 is "On", if and when either: (i) the Mode is set to On via manual input by a human user; or (ii) the Sensor is set to On by detection of an event (such as movement) when the Mode is set to Auto via manual input by a human user.
- the motor 202 is controlled off (e.g., is not supplied with power) via the logic of the controller 206 and its handling of the motor 202 through the motor control 204.
- a circuit 400 performs the functions of the controller 200 of Fig. 2.
- the circuit 400 is implemented in the system 100 (shown in Fig. 1) for operating and controlling the system 100.
- the circuit 400 implemented in the system 100 is, for example, a circuit board and electrical connections and components contained within the housing 102 of the system 100.
- the circuit 400 includes and is electrically connected to and between a power source 402 and a vacuum blower motor 404.
- the power source 402 is AC electrical power, such as provided via an AC plug in a wall electrical jack.
- the power source 402 electrically connects to a power supply 406.
- the power supply 406 for example, converts the AC electrical power of the power source
- the power supply 406 connects to connectors 408, 410.
- Each of the connectors is electrically connected to first and second capacitors 412, 414, in parallel.
- connector 408 is connected to a lead of a first capacitor 412.
- the first capacitor is, for example, a 0.1/ ⁇ F capacitor.
- the connector 408 is also commonly connected to a lead of a second capacitor 414, which is also connected to a voltage source V DD .
- the second capacitor is, for example, a 47 ⁇ F capacitor.
- the other lead of each of the first and second capacitors 412, 414 is connected to the connector 410, and commonly connected to ground.
- a photosensor 420 for example, a photovoltaic npn transistor, is electrically connected across connectors 416, 418.
- the photosensor 420 is physically coupled (in line-of-sight relationship in the housing 102 at the inlet 102a of the system 100) with an infrared (IR) LED 422 of the circuit 400, to act as a motion (i.e., proximity) sensor in the system 100.
- Connector 416 connects to the voltage source V DD .
- the voltage source V D is also connected to a resistor 423, for example, a 51 ⁇ Vi ⁇ resistor.
- the resistor 423 connects to a connector 424, which connects to a lead of the IR LED 422.
- Another lead of the IR LED 422 is connected to a connector 426, also connected to ground.
- a connector 426 also connected to ground.
- the resistor 423 pulls down to ground.
- the connector 418 is also connected to a red LED 432 (or other visible light LED).
- the LED 432 is also connected to a resistor 434, such as a lk ⁇ Y2W resistor, that is connected to ground.
- the LED 432 is included for purposes of manufacturing of the system 100 for vacuum operations.
- the LED 432 is positioned and connected so that, when the IR LED 306 is aligned with the photosensor 420 across the inlet 102a of the housing 102 of the system 100, the LED 432 lights up indicating proper alignment. This allows quick and simple dete ⁇ nination of physical alignment of the infrared beam between the IR LED 306 and the photosensor 402 in the housing 102a.
- the micro controller 430 additionally is connected to receive signals of three- position switch 440 and a pushbutton switch 450.
- the three-position switch 440 signals the microcontroller 430 corresponding to the Mode input to the controller 206 of Figs. 2 and of the states listed in Fig. 3).
- the three-position switch 440 corresponds to the dial 104 of the housing 102 of the system 100.
- the three-position switch 440 connects to a connector 442 of the circuit 400.
- the connector 442 connects to a resistor 444, for example, lOk ⁇ , and which is also connected to the microcontroller 430.
- the voltage source V DD connects to the other lead of the resistor 444.
- the connection to the microcontroller 430 signals for logic of "Auto” control by the microcontroller 430.
- the photosensor 420 and IR LED 422 combination controls the on and off of the motor 404.
- a second position for the three-position switch 440 completes the circuit through a connector 446.
- the connector 446 is connected to a resistor 448, such as lOk ⁇ , and commonly connected to the microcontroller 430 as an input thereto.
- Another lead of the resistor 448 is connected to the voltage source V DD - Whenever the three-position switch 440 completes the circuit through the connector 446, the connection to the microcontroller 430 signals for logic of 'Man" control by the microcontroller 430. hi this 'Man" control mode, the micro controller controls the motor 404 in power on state.
- a third position of the three-position switch 440 completes the circuit through a connector 452.
- the connector 452 is a break in the circuit. In this position for the three- position switch 440, there is not any signal from the switch 440 to the microcontroller 430. This position corresponds to the "Off" control mode, and the motor 404 and entire circuit 400 are powered off in the system 100. In each instance, the switch 440 is also connected to a connector 454 that is connected to ground.
- a pushbutton switch 450 of the circuit 400 Another connection to the microcontroller 430 is made by a pushbutton switch 450 of the circuit 400.
- the switch 450 When the switch 450 is pushed-in (or out, as the case may be for the switch operability), the circuit is completed through a connector 456.
- the connector 456 is connected to a resistor 458 and to the microcontroller 430.
- the resistor 458 is, for example, a lOk ⁇ resistor with another lead connected to the voltage source V DD -
- the pushbutton switch is also connected, via connector 460, to ground.
- the connection to the microcontroller 430 signals for manual "Man" control by the microcontroller 430. In this 'Man" control mode, the microcontroller controls the motor 404 in power on state.
- the microcontroller 430 is further connected to the voltage source V DD and a capacitor 462.
- the capacitor 462 and the voltage source V DD power the microcontroller and connect across a resistor 464 thereto.
- the capacitor 462 is, for example, a O.l ⁇ F capacitor
- the resistor 464 is, for example, a lOk ⁇ resistor.
- the microcontroller 430 additionally connects to a resistor 470, such as 330 ⁇ ViW resistor. Another lead of the resistor 470 connects to a connector 472, connected to a solid state relay 474.
- the relay 474 is connected to the input power source to the circuit 400 and to the motor 404. The motor is connected to the power supply 406.
- Another connector 476 connects the relay 474 to ground.
- the microcontroller 430 in operation in the circuit 400, receives inputs governed by the three-position switch 440 as 'Mode" dete ⁇ riinants.
- the resistors 444 and 448 serve as pull ups to power for the "Auto" and "Man” modes of the switch 440.
- the pushbutton switch 450 is a manual activation button for "on” and “off” operations, notwithstanding the mode (other than “Off") of the switch 440.
- the resistor 458 pulls up to power for "on” operations of the switch 450.
- the microcontroller 430 is operated by software (as hereinafter further detailed) and receives settings and states of the photosensor 420 and IR LED 422 combination, the three-position switch 440, and the pushbutton switch 450. Via the software logic programmed for the microcontroller 430, the microcontroller 430 controls operations of the motor 404 through the solid state relay
- the relay 474 interfaces between the microcontroller 430 and the physical requirements of the motor 404 (effectively serving as the motor control 204 of Fig. 2).
- a method 500 operates the circuit 400 of Fig. 4, in use, for example, in operations of the system 100 of Fig. 1 and according to the controller 200 of Fig. 2 and the states listed in Fig. 3.
- the method 500 commences with a power on to the system 100.
- the power on to the system 100 begins a step 502 of initialization of the system 100.
- the initialization step 502 performs a power up of the circuit 400, the various electrical and optical components, and any system check or test operations.
- the 'Mode" of operation of the system 100 is initially set to “Off in the step 504.
- the "Off Mode as has been discussed above, coiresponds to a system 100 state in which the dial 104 (and corresponding three-position switch 440 of the circuit 400) is set to "Off. This is the preliminary Mode for the system 100 on power up, until a next step 506 occurs.
- the method 500 proceeds with a step 506 of reading the actual Mode as dictated by the physical rotated position of the dial 104 (i.e., three-position switch 440).
- a step 508 a dete ⁇ riination is made whether or not the "Auto" mode is selected based on the dial 104 position (i.e., corresponding to the position of the three-position switch 440). If the detei ⁇ nination in step 508 is that the mode is other than "Auto", then the method 500 proceeds to a step 510.
- step 510 it is dete ⁇ nined if the mode for the system 100 is 'Man" based on the dial 104 positions (i.e., and corresponding to the position of the three-position switch 440). If the step 510 dete ⁇ nines that "Yes" the system 100 is in manual 'Man" mode, then a step 512 sets the mode for the system 100 operations as manual 'Man". This powers on the motor 404 (i.e., the vacuum blower) until a different mode is selected, as indicated by the arrow return to a step 520 in the method 500. If the step 510 otherwise detennines that "No" the system 100 is not in manual
- the method 500 proceeds to a step 514.
- the step 514 sets the mode for the system 100 operations as manual “Off. This powers off the motor 404, in a step 516, and the system 100 remains off unless or until a different mode is selected (e.g., arrow return to the step 520). If initially in the step 508 it is dete ⁇ nined that the mode for the system 100 is
- a step 518 follows in which the system 100 mode is operated as “Auto”. Thereafter, the method 500 proceeds with determinations in the step 520 of whether the system 100 continues in "Auto” mode. If not, then a next 522 detem ⁇ ies whether manual 'Man" mode is selected. If not, then the method returns to the step 506. If manual "Man” mode is then selected, based on the deteirnination in the step 522, a next step 524 determines if the manual pushbutton 105 of the system 100 (i.e., corresponding to the pushbutton switch 450 of the circuit 400) is on (closed circuit) or off (open circuit).
- step 524 dete ⁇ nines the system 100 is on via the pushbutton 105, then the motor 404 is turned on in a step 526. The motor 404 thereafter remains powered on unless and until a step 528 turns off or resets the motor 404, for example, based on passage of time of operations or other characteristics. After the step 528, the method 500 returns to the step 506.
- a step 530 continuously detemiines a state of the sensor 112 of the system 100 (i.e., corresponding to whether an IR fight beam is or is not then interrupted between the IR LED 422 and the photosensor 420 of the circuit 400). If the state of the sensor 112 indicates that an event (e.g., interruption of the light beam) is not occurring, then the method 500 returns to the step 506. On the other hand, if the state of the sensor 112 indicates that the event (e.g., break of the fight beam) is occurring, then a step 532 turns on the motor 404 (i.e., vacuum blower) of the system 100.
- the motor 404 i.e., vacuum blower
- a step 534 powers off or otherwise resets the motor 404 operations based on timing or duration of the power on period, time delay after the event concludes, or other similar event timing or duration passage (e.g., according to choice in implementation of the design).
- a method 600 is performed on interruption of the method 500.
- the method 600 is performed by the circuit 400 of Fig. 4, in use, for example, in operations of the system 100 of Fig. 1 and according to the controller 200 of
- the method 600 is initiated with a step 602 of deteiTnining (i.e., 'reading") the mode for operation of the system 100.
- an event e.g., interruption of IR light beam
- a step 610 detects whether or not manual "Man” mode is then selected (e.g., via the dial 104 position, and corresponding three-position switch 440 position). If not, the method 600 proceeds to the step 622. If so, the motor 404 is powered on in a step 612 by the circuit 400. Thereafter, a step 614 powers off or resets the motor 404, according to the timing and duration settings for the system 100. After the step 614, the method 600 proceeds to the step 622. On the other hand, if the step 604 detects the event occurrence via the sensor 112
- the method 600 proceeds to a step 616.
- the system 100 tests for whether the sensor 112 (i.e., particularly, the photosensor 420 and IR LED 422 combination of the circuit 400) are active and operating. If not, then the method 600 proceeds to the step 622. Otherwise, a next step 618 detects whether the system 100 is then operating in "Auto” mode. If not, the next step is step 622. If the system 100 is then operating in "Auto” mode, then a step 620 turns on the motor 404 (i.e., the vacuum blower of the system 100). Thereafter, a step 620 powers off or resets the motor 404, according to the timing and duration settings for the system 100 and controlled via the microcontroller 430 of the circuit 400.
- the method 600 detects whether or not the timing of the power on for the motor 404 is interrupted. If not, then the method 600 concludes.
- step 622 proceeds to a step 624.
- the step 624 deteimrnes whether or not the timing has expired for the power on of the motor 404 (e.g., according to the settings programmed for the system 100 for the power on timing or duration). If the timing has then expired, the motor 404 is powered off in a step 626 and, additionally or alternatively, a timing delay for the power off is perforaied in a step 628. Otherwise, or in any event at the completion of the step 628, the method 600 concludes.
- the system 100 is wholly off. Any next start-up of the system 100 proceeds according to the method 500 of Fig. 5.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003247853A AU2003247853A1 (en) | 2003-03-14 | 2003-07-01 | Automated electronic vacuum system and method |
CA002527611A CA2527611A1 (en) | 2003-03-14 | 2003-07-01 | Automated electronic vacuum system and method |
EP03816393A EP1608254A1 (en) | 2003-03-14 | 2003-07-01 | Automated electronic vacuum system and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/389,162 US7356872B2 (en) | 2003-03-14 | 2003-03-14 | Automated electronic vacuum system and method |
US10/389,162 | 2003-03-14 |
Publications (1)
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WO2004082450A1 true WO2004082450A1 (en) | 2004-09-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2003/020632 WO2004082450A1 (en) | 2003-03-14 | 2003-07-01 | Automated electronic vacuum system and method |
Country Status (6)
Country | Link |
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US (1) | US7356872B2 (en) |
EP (1) | EP1608254A1 (en) |
CN (1) | CN100374066C (en) |
AU (1) | AU2003247853A1 (en) |
CA (1) | CA2527611A1 (en) |
WO (1) | WO2004082450A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
CN1764408A (en) | 2006-04-26 |
US20040177467A1 (en) | 2004-09-16 |
CN100374066C (en) | 2008-03-12 |
AU2003247853A1 (en) | 2004-10-11 |
US7356872B2 (en) | 2008-04-15 |
EP1608254A1 (en) | 2005-12-28 |
CA2527611A1 (en) | 2004-09-30 |
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