US3872511A - Protective headgear - Google Patents

Protective headgear Download PDF

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US3872511A
US3872511A US449972A US44997274A US3872511A US 3872511 A US3872511 A US 3872511A US 449972 A US449972 A US 449972A US 44997274 A US44997274 A US 44997274A US 3872511 A US3872511 A US 3872511A
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protective headgear
shell
headgear assembly
assembly recited
impact
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US449972A
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Charles E Nichols
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    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/121—Cushioning devices with at least one layer or pad containing a fluid

Definitions

  • Kipnis An impact absorbing covering for protective headgear including a hard shell of one or two material thick- [52] U 5 Cl [51] Int. A42b 3/00 [58] Field of Search 2/2, 3 R. 5, 6; 267/114, 267/117 nesses and having on its inside surface for contact with the protective headgear, a multitude of fluid chambers normally having direct flow communication with the [56] References Cited UNITED STATES PATENTS atmosphere or with a sealed chamber, but which are 3/1940 Holstein.................................. 11/1952 Cushman l/l954 NlCl'lOlS O s d c t C a D. .m S t i m a D.
  • Two players colliding headone may develop a force equal to hitting a concrete wall at miles per hours, and when a player hits the turf, especially the artifical turfs now in general use, following a tackle or block, impact energy varies; that is, the impact energy will be at least twice the velocity of the impact.
  • Brain injury of the kinds sought to be prevented can be defined as laceration of the brain, sub-dural hematomas, cerebral concussion, and extra dural hemorrhaging involving veins and arteries rupturing in sub-dural spaces.
  • an outside protective covering for the conventional type headgear or helmet is of a size of to overlay the headgear and be spaced therefrom so as to accomodate a multitude of fluid chambers or cushions arranged over substantially the entire inside area of the covering so as to afford means on the outside of the helmet to absorb the forces of impact on the covering.
  • These fluid chambers function to absorb, dissipate, and dispense most of the shock of impact before it reaches the helmet.
  • the absorption or dispension of immediate shock wave exteriorly of the helmet tends to decelerate movement of the brain within the cranial cavity of the skull. It is this accelerationpf the brain upon impact that causes about 95% of fatalities arising from football head injuries.
  • Such exteriorly located air chambers which are strategically located, will absorb-much of the impact energy and disburse its full force over a wide area and allow the cranial cavity to freely recoil and. prevent intra-cranial pressures from developing. Further, in order to protect various articulated areas of the skull it is preferable to provide as an integral part of the helmet and on the interior thereof, a pattern of padded ribs which function to prevent abnormal pressures on the cranial structure.
  • Another object is to provide a headgear protective assembly which includes a multiplicity of fluid chambers critically arranged on the interior surface of a hard shell protective covering.
  • Another object is to provide impact resisting air chambers in a protective headgear covering, with novel valve means.
  • Another object is to provide a protective headgear covering with newly constructed air chambers or cushions having normally direct communication with atmosphere, which communication is restricted when the covering is subjected to impact.
  • Another object is to provide a protective covering of the character referred to which is not difficult or expensive to manufacture and which is very reliable for the purposes intended.
  • FIG. I is a vertical central sectional view of a protective covering and associated helmet embodying features of the invention.
  • FIG. 2 is a top plan view of the protective covering. showing the fluid chambers in dotted outline.
  • FIG. 3 is an enlarged detail sectional view of one fluid chamber, showing its valve means in open condition.
  • FIG. 4 is an enlarged detail sectional view of the valve means in closed condition.
  • FIG. 5 is a top plan view of the valve body, the stem being omitted.
  • FIG. 6 is a sectional view similar to FIG. 1, but showing a modified form of construction.
  • FIG. 7 is an enlarged detail sectional view of one of the air chambers in the FIG. 6 assembly, showing its valve in open condition.
  • FIG. 8 is a view similar to FIG. 7, showing the valve in closed condition.
  • the protective covering for headgear includes a hard shell 11 shaped to fit over the helmet '12 which is in turn fitted on the human head (not shown) in the conventional manner.
  • the helmet 12 may include, on its inside, a padded cage-like liner or the like, not shown.
  • the hard shell 11 is substantially larger than the helmet so as to leave a space 13 therebetween which space is substantially occupied by a multiplicity of fluid (air) chambers or cushions 14.
  • FIG. 3 which is fabricated from elastic material, such as rubber or a suitable plastic, has a tubular neck 15 (FIG. 3) that extends through an aperture 16 in the shell 11 for mounting the chamber on the inside surface thereof.
  • the neck preferably has an external flange or shoulder 17 that functions to retain the chamber in mounted condition.
  • Such mounting affords means to easily and quickly remove and replace a chamber should it become ruptured or otherwise damaged.
  • a tubular valve element 18 mounted securely in the tubular neck is a tubular valve element 18 comprised of an externally beaded cylind'rical wall 19, having an internal annular flange 21 suitably formed with radial slots 22.
  • a valve body 23 Arranged for free axial reciprocation within the valve element 18 is a valve body 23 having a large external flange 24 on one end and a smaller external flange 25 on its other end.
  • FIG. 3 when the valve body 23 is in a lowermost position as shown in FIG. 3, atmospheric air is free to enter into the chamber'14 so as to hold the chamber wall extended.
  • the hard shell 11 receives an impact, it is urged toward the helmet 12 thus tending to collapse the chamber.
  • the protective covering is comprised of inner and outer hard shells 31, 32 respectively, having a space 33 therebetween.
  • the inner shell is provided with a multitude of spaced apart openings 34 in each of which is mounted a resiliently collapsible chamber or cushion 35.
  • These chambers are, like the chamber described hereinbefore, fabricated from elastic material, such as rubber or a suitable plastic, and each is formed with'a tubular neck 36 having an axial passage 37 therethrough, and terminating in an outwardly flared mouth 38.
  • the neck is inserted through one of the openings 34 and is prevented from inadvertent withdraw] by an external flange 39 that engages over the outer surface of the inner shell 31.
  • Outwardly of the external flange 39 is a pair of radial apertures 41, which communicate with the axial passage 37 and with the space 33 between shells 31, 32.
  • This construction is such that under normal conditions the space 33 and chambers 35 contain air or other fluid, which is admitted initially through a vlave 42 and pressurized. Now. when the outer shell 32 is subjected to a hard impact, it is driven toward the inner shell 31 and in so doing contacts the, flared mouth 38 of the related chamber neck thus sealing the axial passage. Both shells 31-32 move inwardly toward the helmet l2 causing pressure to be applied to the impacted chamber 35.
  • a protective headgear adapted to fit over a hard shell football helmet, said assembly comprising a substantially rigid shell shaped to fit over the standard football helmet and of a size to be spaced away from said helmet, spaced apart resilient cushions attached to and arranged over substantially the entire inner surface of said shell, and a neck on each resilient cushion each engageable in an aperture in the shell for retaining said cushions in place, said cushions having substantial contact with said helmet and being adapted to partially or wholly collapse when the shell is subjected to severe impact.
  • each resilient cushion comprises a fluid filled chamber.
  • valve means is provided in each chamber.
  • valve means is comprised of a reciprocable element movable into full open and partially closed positions.
  • the assembly includes an outer substantially rigid shell overlying and connected to but spaced from the rigid shell.
  • each cushion comprises a hollow chamber opening into the space between the inner and outer shells.
  • each cushion comprises a hollow chamber having valve means opening into the space between saidshells, said valve means including a normally open large fluid intake opening and a small fluid outlet opening and wherein the outer shell closes the fluid intake opening when said outer shell is subjected to substantial impact so as to retard the collapse of the cham-

Abstract

An impact absorbing covering for protective headgear including a hard shell of one or two material thicknesses and having on its inside surface for contact with the protective headgear, a multitude of fluid chambers normally having direct flow communication with the atmosphere or with a sealed chamber, but which are hermetically sealed when the covering is impacted so as to afford means to absorb the impact.

Description

[111 3,872,511 Ma'r. 25, 1975 Unite States atent Nichols Dye.....,..........
r e d e 0 r h c m S H y r m a c w 6612 5677 r 9999 M wmww m l a x 6344 E 8860 y m 498 1 @506 H 3 n 2333 P. 0 0 w w .w m hh CC wh ROM Ampe m7 G 9 D fl l z 6017 H .9 r Emm aw WCAM4 Em N m n 0 e m w P RVSHD. PMAFA MNNHI 57722 Attorney, Agent, or Firm-Samuel W. Kipnis [57] ABSTRACT An impact absorbing covering for protective headgear including a hard shell of one or two material thick- [52] U 5 Cl [51] Int. A42b 3/00 [58] Field of Search 2/2, 3 R. 5, 6; 267/114, 267/117 nesses and having on its inside surface for contact with the protective headgear, a multitude of fluid chambers normally having direct flow communication with the [56] References Cited UNITED STATES PATENTS atmosphere or with a sealed chamber, but which are 3/1940 Holstein.................................. 11/1952 Cushman l/l954 NlCl'lOlS O s d c t C a D. .m S t i m a D. m i 0& Ch et mm n w b a wo t. S w m e m Wm a 8 mm 68 ha RRR 5 W271i 6 2 u 9 Claims, 8 Drawing Figures PATENIEQ MR 2 51975 SHEET 2 UP 2 PROTECTIVE HEADGEAR In football, the greatest potential for injuries is when a player, running at full speed, collides with a goal post, a concrete wall at the perimeter of the field, or headone with another player. Two players colliding headone may develop a force equal to hitting a concrete wall at miles per hours, and when a player hits the turf, especially the artifical turfs now in general use, following a tackle or block, impact energy varies; that is, the impact energy will be at least twice the velocity of the impact.
Although absolute human tolerances to energy impact cannot be established, it appears evident that the solution is to disperse, dispense, dissipate, and/or absorb the impact energy prior to its reaching the hard shell of the helmet and the cranial cavity of the skull. For most impacts, the injuring energies result from acceleration, deceleration or compression of the head or any combination of these three. The sudden setting of the head (acceleration) or stopping of the head (decleration) may often result in the generation ofintracranial pressures and intra-cranial lesions, such as hemorrhages, contusions and concussions.
The lines of force, or energy, of impact are transmitted through the vault and base of the cranial cavity, and should a fracture develop as the result of impact, serious sub-dural or extra dural hematomas may occur. At the moment of great traumatic impact, the skull is pressed agaist the brain and this may cause contusions of the meminges and brain, especially ifthe head is held firmly and cannot recoil. Should the head be free a fraction of a second after impact, momentum of the blow throws the brain forcibly against the skull opposite the point of impact. A blow of the posterior region of the skull causes contrecoup lesions (contusions) of the tips of the frontal and temporal lobes when the brain is forced against the irregular bone of anterior and middle cranial fossae.
Response to any injury causes edema and hemorrhage or both. This means an increase in the size of the brain within a bony cavity of limited size and hence an increase in intra-cranial pressures. Brain injury of the kinds sought to be prevented can be defined as laceration of the brain, sub-dural hematomas, cerebral concussion, and extra dural hemorrhaging involving veins and arteries rupturing in sub-dural spaces.
In the present disclosure, which is an improvement over the structure shown and claimed in U.S. Pat. No. 3,787,893, issued Jan. 29, 1974, there is provided, an outside protective covering for the conventional type headgear or helmet. This covering is of a size of to overlay the headgear and be spaced therefrom so as to accomodate a multitude of fluid chambers or cushions arranged over substantially the entire inside area of the covering so as to afford means on the outside of the helmet to absorb the forces of impact on the covering. These fluid chambers function to absorb, dissipate, and dispense most of the shock of impact before it reaches the helmet. Thus, the absorption or dispension of immediate shock wave exteriorly of the helmet tends to decelerate movement of the brain within the cranial cavity of the skull. It is this accelerationpf the brain upon impact that causes about 95% of fatalities arising from football head injuries.
Such exteriorly located air chambers, which are strategically located, will absorb-much of the impact energy and disburse its full force over a wide area and allow the cranial cavity to freely recoil and. prevent intra-cranial pressures from developing. Further, in order to protect various articulated areas of the skull it is preferable to provide as an integral part of the helmet and on the interior thereof, a pattern of padded ribs which function to prevent abnormal pressures on the cranial structure.
It is therefore an object of the invention to provide an impact absorbing covering for a hard shell protective headgear.
Another object is to provide a headgear protective assembly which includes a multiplicity of fluid chambers critically arranged on the interior surface of a hard shell protective covering.
Another object is to provide impact resisting air chambers in a protective headgear covering, with novel valve means.
Another object is to provide a protective headgear covering with newly constructed air chambers or cushions having normally direct communication with atmosphere, which communication is restricted when the covering is subjected to impact.
Another object is to provide a protective covering of the character referred to which is not difficult or expensive to manufacture and which is very reliable for the purposes intended.
Other objects and advantages of the invention will become apparent with reference to the following description and accompanying drawings.
IN THE DRAWINGS FIG. I is a vertical central sectional view of a protective covering and associated helmet embodying features of the invention.
FIG. 2 is a top plan view of the protective covering. showing the fluid chambers in dotted outline.
FIG. 3 is an enlarged detail sectional view of one fluid chamber, showing its valve means in open condition.
FIG. 4 is an enlarged detail sectional view of the valve means in closed condition. I
FIG. 5 is a top plan view of the valve body, the stem being omitted.
FIG. 6 is a sectional view similar to FIG. 1, but showing a modified form of construction.
FIG. 7 is an enlarged detail sectional view of one of the air chambers in the FIG. 6 assembly, showing its valve in open condition.
FIG. 8 is a view similar to FIG. 7, showing the valve in closed condition.
Referring now to the exemplary disclosures of the invention as shown in the accompanying drawings, and particularly to the embodiment shown in FIGS. 1 through 5, the protective covering for headgear includes a hard shell 11 shaped to fit over the helmet '12 which is in turn fitted on the human head (not shown) in the conventional manner. The helmet 12 may include, on its inside, a padded cage-like liner or the like, not shown.
The hard shell 11 is substantially larger than the helmet so as to leave a space 13 therebetween which space is substantially occupied by a multiplicity of fluid (air) chambers or cushions 14. Each of these chambers 14,-
which is fabricated from elastic material, such as rubber or a suitable plastic, has a tubular neck 15 (FIG. 3) that extends through an aperture 16 in the shell 11 for mounting the chamber on the inside surface thereof. The neck preferably has an external flange or shoulder 17 that functions to retain the chamber in mounted condition. Such mounting affords means to easily and quickly remove and replace a chamber should it become ruptured or otherwise damaged.
Mounted securely in the tubular neck is a tubular valve element 18 comprised of an externally beaded cylind'rical wall 19, having an internal annular flange 21 suitably formed with radial slots 22. Arranged for free axial reciprocation within the valve element 18 is a valve body 23 having a large external flange 24 on one end and a smaller external flange 25 on its other end. As best shown in FIG. 3, when the valve body 23 is in a lowermost position as shown in FIG. 3, atmospheric air is free to enter into the chamber'14 so as to hold the chamber wall extended. Now, when the hard shell 11 receives an impact, it is urged toward the helmet 12 thus tending to collapse the chamber. However, rapid collapse is preventedand instead high resistance is offered against such collapse by'the movement of the valve body 18 axially in an outward direction so as to carry its large flange 24 tightly against the. radially slotted flange 21 thus closing the radial slots and restricting the escape of air through the small axial passage 26 in the valve body. Accordingly, when impact is applied to one or more of the chambers 14, the impact is instantly partially absorbed by the chambers impacted with any other surrounding impact force being distributed against adjacent chambers. Thus, it is evident that the fluid chambers 14 absorb, distribute and dissipate the impact shock and prevent its full force from impinging upon the helmet l2 and thus onto the skull.
In the FIG. 6 to 8 modification, the same principle of impact absorption is effected. Here the protective covering is comprised of inner and outer hard shells 31, 32 respectively, having a space 33 therebetween.
The inner shell is provided with a multitude of spaced apart openings 34 in each of which is mounted a resiliently collapsible chamber or cushion 35. These chambers are, like the chamber described hereinbefore, fabricated from elastic material, such as rubber or a suitable plastic, and each is formed with'a tubular neck 36 having an axial passage 37 therethrough, and terminating in an outwardly flared mouth 38. The neck is inserted through one of the openings 34 and is prevented from inadvertent withdraw] by an external flange 39 that engages over the outer surface of the inner shell 31. Outwardly of the external flange 39 is a pair of radial apertures 41, which communicate with the axial passage 37 and with the space 33 between shells 31, 32.
This construction is such that under normal conditions the space 33 and chambers 35 contain air or other fluid, which is admitted initially through a vlave 42 and pressurized. Now. when the outer shell 32 is subjected to a hard impact, it is driven toward the inner shell 31 and in so doing contacts the, flared mouth 38 of the related chamber neck thus sealing the axial passage. Both shells 31-32 move inwardly toward the helmet l2 causing pressure to be applied to the impacted chamber 35. Because the passage mouth 38 is closed, the highly pressurized air in the impacted chamber 35 will escape slowly through the radial apertures 41 into the space 33 the invention, in considerable detail, it will be understood that the description thereof is intended to be illustrative, rather than restrictive, as detailsof the structures may be modified or changed without departing from the spirit or scope of the invention. Accordingly, I do not desire to be restricted to the exact construction shown and described.
I claim:
1. In a protective headgear adapted to fit over a hard shell football helmet, said assembly comprising a substantially rigid shell shaped to fit over the standard football helmet and of a size to be spaced away from said helmet, spaced apart resilient cushions attached to and arranged over substantially the entire inner surface of said shell, and a neck on each resilient cushion each engageable in an aperture in the shell for retaining said cushions in place, said cushions having substantial contact with said helmet and being adapted to partially or wholly collapse when the shell is subjected to severe impact.
2. In the protective headgear assembly recited in claim 1, in which each resilient cushion comprises a fluid filled chamber.
3. In the protective headgear assembly recited in claim 2, in which valve means is provided in each chamber.
4. In the protective headgear assembly recited in claim 3, in which the valve means is comprised of a reciprocable element movable into full open and partially closed positions.
5. In the protective headgear assembly recited in claim 1, in which the neck includes valve means.
6. In the protective headgear assembly recited in claim 1, wherein the assembly includes an outer substantially rigid shell overlying and connected to but spaced from the rigid shell.
7. In the protective headgear assembly recited in claim 6, wherein each cushion comprises a hollow chamber opening into the space between the inner and outer shells.
8. In the protective headgear assembly recited in claim 7, wherein the outer shell substantially closes the opening into said space when the outer shell is subjected to substantial impact.
9. In the protective headgear assembly recited in claim 6, wherein each cushion comprises a hollow chamber having valve means opening into the space between saidshells, said valve means including a normally open large fluid intake opening and a small fluid outlet opening and wherein the outer shell closes the fluid intake opening when said outer shell is subjected to substantial impact so as to retard the collapse of the cham-

Claims (9)

1. In a protective headgear adapted to fit over a hard shell football helmet, said assembly comprising a substantially rigid shell shaped to fit over the standard football helmet and of a size to be spaced away from said helmet, spaced apart resilient cushions attached to and arranged over substantially the entire inner surface of said shell, and a neck on each resilient cushion each engageable in an aperture in the shell for retaining said cushions in place, said cushions having substantial contact with said helmet and being adapted to partially or wholly collapse when the shell is subjected to severe impact.
2. In the protective headgear assembly recited in claim 1, in which each resilient cushion comprises a fluid filled chamber.
3. In the protective headgear assembly recited in claim 2, in which valve means is provided in each chamber.
4. In the protective headgear assembly recited in claim 3, in which the valve means is comprised of a reciprocable element movable into full open and partially closed positions.
5. In the protective headgear assembly recited in claim 1, in which the neck includes valve means.
6. In the protective headgear assembly recited in claim 1, wherein the assembly includes an outer substantially rigid shell overlying and connected to but spaced from the rigid shell.
7. In the protective headgear assembly recited in claim 6, wherein each cushion comprises a hollow chamber opening into the space between the inner and outer shells.
8. In the protective headgear assembly recited in claim 7, wherein the outer shell substantially closes the opening into said space when the outer shell is subjected to substantial impact.
9. In the protective headgear assembly recited in claim 6, wherein each cushion comprises a hollow chamber having valve means opening into the space between said shells, said valve means including a normally open large fluid intake opening and a small fluid outlet opening and wherein the outer shell closes the fluid intake opening when said outer shell is subjected to substantial impact so as to retard the collapse of the chamber.
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Cited By (123)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183156A (en) * 1977-01-14 1980-01-15 Robert C. Bogert Insole construction for articles of footwear
US4324005A (en) * 1980-01-18 1982-04-13 Charles S. Willis Protective headgear
US4486901A (en) * 1982-03-12 1984-12-11 Houston Protective Equipment, Inc. Multi-layered, open-celled foam shock absorbing structure for athletic equipment
US4660230A (en) * 1984-07-09 1987-04-28 Walter G. Weissenberger Baseball batting helmet
US5034998A (en) * 1990-06-12 1991-07-30 Hpi Health Protection, Inc. Protective device for reducing injury from falls
WO1993002577A1 (en) * 1991-07-31 1993-02-18 Hpi Health Protection, Inc. Multilayer cushion with fluid filled pockets or chambers
US5253435A (en) * 1989-03-17 1993-10-19 Nike, Inc. Pressure-adjustable shoe bladder assembly
US5257470A (en) * 1989-03-17 1993-11-02 Nike, Inc. Shoe bladder system
DE4305745A1 (en) * 1993-02-25 1994-09-08 Gerhard Sperber Cycling helmet made of plastic, and method of manufacture thereof
US5416988A (en) * 1989-03-17 1995-05-23 Nike, Inc. Customized fit shoe and bladder therefor
AU668266B2 (en) * 1993-02-25 1996-04-26 Gerhard Sperber Helmet, particularly a bicycle crash helmet; and process for its manufacture
US5545128A (en) * 1992-11-20 1996-08-13 Beth Israel Hospital Bone fracture prevention method
US5687426A (en) * 1993-02-25 1997-11-18 Elasto Form Bicycle helmet
US5720051A (en) * 1996-07-08 1998-02-24 The United States Of America As Represented By The Secretary Of The Air Force Inflatable multiple cell helmet liner to enhance fit, security and comfort
US5753061A (en) * 1995-06-05 1998-05-19 Robert C. Bogert Multi-celled cushion and method of its manufacture
US5765298A (en) * 1989-03-17 1998-06-16 Nike, Inc. Athletic shoe with pressurized ankle collar
WO1998025488A2 (en) * 1996-11-27 1998-06-18 Tecno-Fluid America, Inc. An improved resistant helmet assembly
US5881395A (en) * 1993-07-08 1999-03-16 Donzis; Byron A Impact absorbing pad
US5950243A (en) * 1997-06-13 1999-09-14 Alberta Research Council Structural shell for protective headgear
US6093468A (en) * 1997-03-14 2000-07-25 The Procter & Gamble Company Flexible lightweight protective pad with energy absorbing inserts
US20040261157A1 (en) * 2003-06-30 2004-12-30 Srikrishna Talluri Multi-layered, impact absorbing, modular helmet
US20060059605A1 (en) * 2004-09-22 2006-03-23 Xenith Athletics, Inc. Layered construction of protective headgear with one or more compressible layers of thermoplastic elastomer material
US20060059606A1 (en) * 2004-09-22 2006-03-23 Xenith Athletics, Inc. Multilayer air-cushion shell with energy-absorbing layer for use in the construction of protective headgear
US20060070171A1 (en) * 2004-10-06 2006-04-06 Steve Copeland Shock absorbing structure
US20070190293A1 (en) * 2006-02-16 2007-08-16 Xenith, Inc. Protective Structure and Method of Making Same
US20070190292A1 (en) * 2006-02-16 2007-08-16 Ferrara Vincent R Impact energy management method and system
US20080250548A1 (en) * 2007-04-13 2008-10-16 Stuhmiller James H Anti-blast and shock optimal reduction buffer
US20080256686A1 (en) * 2005-02-16 2008-10-23 Xenith, Llc. Air Venting, Impact-Absorbing Compressible Members
US20090260133A1 (en) * 2008-04-18 2009-10-22 Del Rosario John A Impact Absorbing Frame and Layered Structure System for Safety Helmets
US20090265839A1 (en) * 2006-04-13 2009-10-29 Massachusetts Institute Of Technology Fluid Safety Liner
US20090320185A1 (en) * 2006-11-10 2009-12-31 Andreas Hassler Protective helmet
US20110047685A1 (en) * 2006-02-16 2011-03-03 Ferrara Vincent R Impact energy management method and system
US20110072565A1 (en) * 2007-07-25 2011-03-31 Krueger Wesley W O Inflatable air recoil suppressor
US20110198788A1 (en) * 2010-02-12 2011-08-18 James Michael Hines Shock wave generation, reflection and dissipation device.
US20110209272A1 (en) * 2010-03-01 2011-09-01 Drake Carl Protective sports helmet with energy-absorbing padding and a facemask with force-distributing shock absorbers
US20110225706A1 (en) * 2010-03-19 2011-09-22 Brian Pye Hybrid Head Covering
WO2012012760A2 (en) * 2010-07-22 2012-01-26 Wingo-Princip Management, Llc Protective helmet
WO2012094733A1 (en) * 2011-01-10 2012-07-19 2156389 Ontario Inc. Impact attenuating bladder with fluid release control valve for a helmet liner
US20120297525A1 (en) * 2011-05-23 2012-11-29 Juliana Bain Helmet for Reducing Concussive Forces During Collision
US20120304367A1 (en) * 2010-02-26 2012-12-06 Thl Holding Company, Llc Protective helmet
US20130000017A1 (en) * 2011-07-01 2013-01-03 Intellectual Property Holdings, Llc Helmet impact liner system
US8347419B1 (en) 2011-09-13 2013-01-08 Cleva Robert E Form-fitting protective headwear
US8347421B2 (en) 2007-07-25 2013-01-08 Body Armour Technology, Llc Impact reduction system
US20130014689A1 (en) * 2011-07-11 2013-01-17 Papp John P Helmet cover
US20130019385A1 (en) * 2011-07-21 2013-01-24 Brainguard Technologies, Inc. Energy and impact transformer layer
USD679058S1 (en) 2011-07-01 2013-03-26 Intellectual Property Holdings, Llc Helmet liner
US20130111653A1 (en) * 2011-11-04 2013-05-09 Otos Wing Co., Ltd. Air cushion for attaching headband of welding mask
USD683079S1 (en) 2011-10-10 2013-05-21 Intellectual Property Holdings, Llc Helmet liner
US20130125295A1 (en) * 2007-07-25 2013-05-23 Wesley W.O. Krueger Impact reduction system
US8458820B2 (en) 2011-09-13 2013-06-11 Robert E. Cleva Form-fitting protective headwear
US20130152287A1 (en) * 2011-12-16 2013-06-20 Oakwood Energy Management, Inc. Rebounding cushioning helmet liner
US20130152285A1 (en) * 2011-12-20 2013-06-20 Drandalie, Llc. Lightweight and Flexible Protective Equipment System
US20130174331A1 (en) * 2012-01-06 2013-07-11 Michcar Partners, Llc Protective helmet
US8494324B2 (en) 2004-11-22 2013-07-23 Frampton E. Ellis Wire cable for electronic devices, including a core surrounded by two layers configured to slide relative to each other
US20130212783A1 (en) * 2012-02-16 2013-08-22 Walter Bonin Personal Impact Protection Device
WO2013134063A1 (en) * 2012-03-06 2013-09-12 Suddaby Loubert S Helmet with multiple protective zones
WO2013163106A1 (en) 2012-04-25 2013-10-31 Baty David Protective headgear
US20130291289A1 (en) * 2012-05-02 2013-11-07 Intellectual Property Holdings, Llc Helmet impact liner system
US20140013491A1 (en) * 2012-04-04 2014-01-16 University Of Ottawa Head Protection for Reducing Linear Acceleration
US8670246B2 (en) 2007-11-21 2014-03-11 Frampton E. Ellis Computers including an undiced semiconductor wafer with Faraday Cages and internal flexibility sipes
US8713717B2 (en) 2011-09-13 2014-05-06 Robert E. Cleva Protective athletic headwear with open top
US20140123371A1 (en) * 2012-01-06 2014-05-08 Michcar Partners, Llc Protective helmet
US8726424B2 (en) 2010-06-03 2014-05-20 Intellectual Property Holdings, Llc Energy management structure
US8789212B2 (en) 2011-09-13 2014-07-29 Robert E. Cleva Protective athletic headwear with open top
US20140215694A1 (en) * 2013-02-06 2014-08-07 Darin Grice Helmet with external shock wave dampening panels
US20140223643A1 (en) * 2013-02-12 2014-08-14 Riddell, Inc. Pad assemblies for a protective sports helmet
US8814150B2 (en) 2011-12-14 2014-08-26 Xenith, Llc Shock absorbers for protective body gear
US8844066B1 (en) 2013-11-13 2014-09-30 John E. Whitcomb Integrated helmet having blunt force trauma protection
US20140359912A1 (en) * 2011-12-20 2014-12-11 Andrew Cameron Sutton Web and bladder suspension protection system
WO2014150694A3 (en) * 2013-03-15 2015-01-08 Suddaby Loubert S Helmet with multiple protective zones
US8950735B2 (en) 2011-12-14 2015-02-10 Xenith, Llc Shock absorbers for protective body gear
US8973171B2 (en) 2011-09-13 2015-03-10 Robert E. Cleva Form-fitting protective headwear
US20150101899A1 (en) * 2013-10-11 2015-04-16 Rousseau Research, Inc. Protective athletic equipment
USD733972S1 (en) 2013-09-12 2015-07-07 Intellectual Property Holdings, Llc Helmet
US20150223545A1 (en) * 2014-02-11 2015-08-13 Janice Geraldine Fraser Protective headgear
US9174111B2 (en) 2012-07-06 2015-11-03 Warrior Sports, Inc. Protective athletic equipment
US9173445B1 (en) 2014-03-10 2015-11-03 John E. Whitcomb Integrated helmet having blunt force trauma protection
US9332799B1 (en) * 2014-10-14 2016-05-10 Helmet Technologies LLC Protective apparatus and method for dissipating force
US9439468B1 (en) * 2015-06-19 2016-09-13 Ethan Wayne Blagg Protective athletic helmet
US9451795B2 (en) 2007-07-25 2016-09-27 Wesley W. O. Krueger Impact reduction system
US9717297B2 (en) 2013-05-31 2017-08-01 Lenard Harris Shell for a protective helmet
US20170232327A1 (en) * 2016-02-12 2017-08-17 Carl Kuntz Impact absorption padding for contact sports helmets
US9743701B2 (en) 2013-10-28 2017-08-29 Intellectual Property Holdings, Llc Helmet retention system
US9756891B1 (en) * 2015-06-11 2017-09-12 James Robb McGhie Apparatus for protecting the head of a person from an external force
US9795178B2 (en) 2012-03-06 2017-10-24 Loubert S. Suddaby Helmet with multiple protective zones
US20170367431A1 (en) * 2016-06-27 2017-12-28 Choon Kee Lee Mechanical-waves Dissipating Protective Headgear Apparatus
US9894953B2 (en) 2012-10-04 2018-02-20 Intellectual Property Holdings, Llc Helmet retention system
US20180098595A1 (en) * 2016-10-07 2018-04-12 William STECK Apparatus and method for improving impact performance of helmets
US20180125143A1 (en) * 2016-11-08 2018-05-10 JMH Consulting Group, LLC Helmet
US9980531B2 (en) 2012-03-06 2018-05-29 Loubert S. Suddaby Protective helmet with energy storage mechanism
WO2018129447A1 (en) 2017-01-09 2018-07-12 Suddaby Loubert S Protective helmet
US20180360155A1 (en) * 2017-06-16 2018-12-20 Sekund Skull Inc. Protective device for use with helmets
US20190059497A1 (en) * 2015-05-07 2019-02-28 Exero Labs LLC Device for minimizing impact of collisions for a helmet
US10219572B1 (en) * 2014-03-10 2019-03-05 John E. Whitcomb Baseball cap having impact protection
USD844255S1 (en) 2014-02-12 2019-03-26 Riddell, Inc. Football helmet
US10244809B2 (en) 2013-12-18 2019-04-02 Linares Medical Devices, Llc Helmet for attenuating impact event
US10258100B1 (en) 2012-06-18 2019-04-16 Kranos Ip Corporation Football helmet with raised plateau
US10271605B2 (en) 2007-04-16 2019-04-30 Riddell, Inc. Protective sports helmet
US10278445B1 (en) 2013-11-13 2019-05-07 John E. Whitcomb Helmet having non-bursting gas cells
US10327482B1 (en) * 2014-10-14 2019-06-25 Helmet Technologies LLC Apparatus and method for dissipating force
US10362829B2 (en) 2013-12-06 2019-07-30 Bell Sports, Inc. Multi-layer helmet and method for making the same
US10517347B2 (en) 2012-03-06 2019-12-31 Loubert S. Suddaby Helmet with multiple protective zones
US10582737B2 (en) 2013-02-12 2020-03-10 Riddell, Inc. Football helmet with impact attenuation system
US10721987B2 (en) 2014-10-28 2020-07-28 Bell Sports, Inc. Protective helmet
US10813403B2 (en) 2018-11-01 2020-10-27 Kranos Ip Corporation Football helmet having exceptional impact performance
US10874162B2 (en) 2011-09-09 2020-12-29 Riddell, Inc. Protective sports helmet
US10932514B2 (en) 2002-05-01 2021-03-02 Riddell, Inc. Protective sports helmet
US10948898B1 (en) 2013-01-18 2021-03-16 Bell Sports, Inc. System and method for custom forming a protective helmet for a customer's head
USD916385S1 (en) 2011-05-02 2021-04-13 Riddell, Inc. Football helmet
USD927084S1 (en) 2018-11-22 2021-08-03 Riddell, Inc. Pad member of an internal padding assembly of a protective sports helmet
US11134738B2 (en) 2017-10-25 2021-10-05 Turtle Shell Protective Systems Llc Helmet with external flexible cage
US11167198B2 (en) 2018-11-21 2021-11-09 Riddell, Inc. Football helmet with components additively manufactured to manage impact forces
US11213736B2 (en) 2016-07-20 2022-01-04 Riddell, Inc. System and methods for designing and manufacturing a bespoke protective sports helmet
US11229254B1 (en) * 2020-03-31 2022-01-25 Rose Elizabeth Matteucci Dispersing helmet safety system and method
US11259588B2 (en) * 2018-05-29 2022-03-01 William O. Young Athletic helmet
US11278076B2 (en) 2012-03-06 2022-03-22 Loubert S. Suddaby Protective helmet with energy storage mechanism
US11399589B2 (en) 2018-08-16 2022-08-02 Riddell, Inc. System and method for designing and manufacturing a protective helmet tailored to a selected group of helmet wearers
US20220378139A1 (en) * 2019-11-18 2022-12-01 Nfm As Helmet
US11547158B2 (en) * 2017-10-13 2023-01-10 Titon Ideas, Inc. Fluid-actuated impact protection system and method
US11553752B2 (en) * 2017-07-20 2023-01-17 Ryan C. EILER Safety helmet with interchangeable layers
US11632999B2 (en) * 2017-02-13 2023-04-25 The Board Of Trustees Of The Leland Stanford Junior University Constant force impact protection device
US11766085B2 (en) 2011-02-09 2023-09-26 6D Helmets, Llc Omnidirectional energy management systems and methods
US11805826B2 (en) * 2012-02-16 2023-11-07 WB Development Company, LLC Personal impact protection device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1542675A (en) * 1924-02-27 1925-06-16 Luther B Demuth Seat
US2194903A (en) * 1939-03-06 1940-03-26 Holstein Harvey Football helmet
US2618780A (en) * 1950-07-21 1952-11-25 Cecil A Cushman Pneumatic helmet
US2664567A (en) * 1950-12-29 1954-01-05 John W Nichols Pneumatic boxing helmet
US2759186A (en) * 1953-07-07 1956-08-21 Cornell Aeronautical Labor Inc Pneumatic suspension for safety helmet
US3254883A (en) * 1962-11-23 1966-06-07 John T Riddell Inc Protective energy absorption construction
US3609764A (en) * 1969-03-20 1971-10-05 Riddell Energy absorbing and sizing means for helmets
US3668704A (en) * 1970-07-13 1972-06-13 Robert E Conroy Protective headgear

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1542675A (en) * 1924-02-27 1925-06-16 Luther B Demuth Seat
US2194903A (en) * 1939-03-06 1940-03-26 Holstein Harvey Football helmet
US2618780A (en) * 1950-07-21 1952-11-25 Cecil A Cushman Pneumatic helmet
US2664567A (en) * 1950-12-29 1954-01-05 John W Nichols Pneumatic boxing helmet
US2759186A (en) * 1953-07-07 1956-08-21 Cornell Aeronautical Labor Inc Pneumatic suspension for safety helmet
US3254883A (en) * 1962-11-23 1966-06-07 John T Riddell Inc Protective energy absorption construction
US3609764A (en) * 1969-03-20 1971-10-05 Riddell Energy absorbing and sizing means for helmets
US3668704A (en) * 1970-07-13 1972-06-13 Robert E Conroy Protective headgear

Cited By (227)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183156A (en) * 1977-01-14 1980-01-15 Robert C. Bogert Insole construction for articles of footwear
US4324005A (en) * 1980-01-18 1982-04-13 Charles S. Willis Protective headgear
US4486901A (en) * 1982-03-12 1984-12-11 Houston Protective Equipment, Inc. Multi-layered, open-celled foam shock absorbing structure for athletic equipment
US4660230A (en) * 1984-07-09 1987-04-28 Walter G. Weissenberger Baseball batting helmet
US5253435A (en) * 1989-03-17 1993-10-19 Nike, Inc. Pressure-adjustable shoe bladder assembly
US5257470A (en) * 1989-03-17 1993-11-02 Nike, Inc. Shoe bladder system
US5765298A (en) * 1989-03-17 1998-06-16 Nike, Inc. Athletic shoe with pressurized ankle collar
US5416988A (en) * 1989-03-17 1995-05-23 Nike, Inc. Customized fit shoe and bladder therefor
US5034998A (en) * 1990-06-12 1991-07-30 Hpi Health Protection, Inc. Protective device for reducing injury from falls
US5274846A (en) * 1990-06-12 1994-01-04 Hpi Health Protection, Inc. Cushion having multilayer closed cell structure
WO1993002577A1 (en) * 1991-07-31 1993-02-18 Hpi Health Protection, Inc. Multilayer cushion with fluid filled pockets or chambers
US5545128A (en) * 1992-11-20 1996-08-13 Beth Israel Hospital Bone fracture prevention method
US5599290A (en) * 1992-11-20 1997-02-04 Beth Israel Hospital Bone fracture prevention garment and method
US5687426A (en) * 1993-02-25 1997-11-18 Elasto Form Bicycle helmet
AU668266B2 (en) * 1993-02-25 1996-04-26 Gerhard Sperber Helmet, particularly a bicycle crash helmet; and process for its manufacture
DE4305745A1 (en) * 1993-02-25 1994-09-08 Gerhard Sperber Cycling helmet made of plastic, and method of manufacture thereof
US5881395A (en) * 1993-07-08 1999-03-16 Donzis; Byron A Impact absorbing pad
US5753061A (en) * 1995-06-05 1998-05-19 Robert C. Bogert Multi-celled cushion and method of its manufacture
US5720051A (en) * 1996-07-08 1998-02-24 The United States Of America As Represented By The Secretary Of The Air Force Inflatable multiple cell helmet liner to enhance fit, security and comfort
US5815846A (en) * 1996-11-27 1998-10-06 Tecno-Fluidos, S.L. Resistant helmet assembly
WO1998025488A3 (en) * 1996-11-27 1998-12-10 Tecno Fluid America Inc An improved resistant helmet assembly
WO1998025488A2 (en) * 1996-11-27 1998-06-18 Tecno-Fluid America, Inc. An improved resistant helmet assembly
US6093468A (en) * 1997-03-14 2000-07-25 The Procter & Gamble Company Flexible lightweight protective pad with energy absorbing inserts
US5950243A (en) * 1997-06-13 1999-09-14 Alberta Research Council Structural shell for protective headgear
US10932514B2 (en) 2002-05-01 2021-03-02 Riddell, Inc. Protective sports helmet
US20060242752A1 (en) * 2003-06-30 2006-11-02 Srikrishna Talluri Impact absorbing, modular helmet
US7089602B2 (en) * 2003-06-30 2006-08-15 Srikrishna Talluri Multi-layered, impact absorbing, modular helmet
US7254843B2 (en) * 2003-06-30 2007-08-14 Srikrishna Talluri Impact absorbing, modular helmet
US20040261157A1 (en) * 2003-06-30 2004-12-30 Srikrishna Talluri Multi-layered, impact absorbing, modular helmet
US9683622B2 (en) 2004-04-21 2017-06-20 Xenith, Llc Air venting, impact-absorbing compressible members
US20060059605A1 (en) * 2004-09-22 2006-03-23 Xenith Athletics, Inc. Layered construction of protective headgear with one or more compressible layers of thermoplastic elastomer material
US20060059606A1 (en) * 2004-09-22 2006-03-23 Xenith Athletics, Inc. Multilayer air-cushion shell with energy-absorbing layer for use in the construction of protective headgear
US7673351B2 (en) * 2004-10-06 2010-03-09 Paradox Design Services Inc. Shock absorbing structure
US20060070171A1 (en) * 2004-10-06 2006-04-06 Steve Copeland Shock absorbing structure
US9681696B2 (en) 2004-11-22 2017-06-20 Frampton E. Ellis Helmet and/or a helmet liner including an electronic control system controlling the flow resistance of a magnetorheological liquid in compartments
US9107475B2 (en) 2004-11-22 2015-08-18 Frampton E. Ellis Microprocessor control of bladders in footwear soles with internal flexibility sipes
US8873914B2 (en) 2004-11-22 2014-10-28 Frampton E. Ellis Footwear sole sections including bladders with internal flexibility sipes therebetween and an attachment between sipe surfaces
US8561323B2 (en) 2004-11-22 2013-10-22 Frampton E. Ellis Footwear devices with an outer bladder and a foamed plastic internal structure separated by an internal flexibility sipe
US8567095B2 (en) 2004-11-22 2013-10-29 Frampton E. Ellis Footwear or orthotic inserts with inner and outer bladders separated by an internal sipe including a media
US8494324B2 (en) 2004-11-22 2013-07-23 Frampton E. Ellis Wire cable for electronic devices, including a core surrounded by two layers configured to slide relative to each other
US10021938B2 (en) 2004-11-22 2018-07-17 Frampton E. Ellis Furniture with internal flexibility sipes, including chairs and beds
US11039658B2 (en) 2004-11-22 2021-06-22 Frampton E. Ellis Structural elements or support elements with internal flexibility sipes
US11503876B2 (en) 2004-11-22 2022-11-22 Frampton E. Ellis Footwear or orthotic sole with microprocessor control of a bladder with magnetorheological fluid
US8925117B2 (en) 2004-11-22 2015-01-06 Frampton E. Ellis Clothing and apparel with internal flexibility sipes and at least one attachment between surfaces defining a sipe
US9339074B2 (en) 2004-11-22 2016-05-17 Frampton E. Ellis Microprocessor control of bladders in footwear soles with internal flexibility sipes
US8732868B2 (en) * 2004-11-22 2014-05-27 Frampton E. Ellis Helmet and/or a helmet liner with at least one internal flexibility sipe with an attachment to control and absorb the impact of torsional or shear forces
US20080256686A1 (en) * 2005-02-16 2008-10-23 Xenith, Llc. Air Venting, Impact-Absorbing Compressible Members
US20080155735A1 (en) * 2005-02-16 2008-07-03 Xenith, Llc Energy-Absorbing Liners and Shape Conforming Layers for Use with Pro-Tective Headgear
US20110047685A1 (en) * 2006-02-16 2011-03-03 Ferrara Vincent R Impact energy management method and system
US7895681B2 (en) 2006-02-16 2011-03-01 Xenith, Llc Protective structure and method of making same
US20120266366A1 (en) * 2006-02-16 2012-10-25 Ferrara Vincent R Impact energy management method and system
US7774866B2 (en) 2006-02-16 2010-08-17 Xenith, Llc Impact energy management method and system
US8528119B2 (en) * 2006-02-16 2013-09-10 Xenith Llc Impact energy management method and system
US20070190292A1 (en) * 2006-02-16 2007-08-16 Ferrara Vincent R Impact energy management method and system
US20070190293A1 (en) * 2006-02-16 2007-08-16 Xenith, Inc. Protective Structure and Method of Making Same
US20090265839A1 (en) * 2006-04-13 2009-10-29 Massachusetts Institute Of Technology Fluid Safety Liner
US8166574B2 (en) * 2006-11-10 2012-05-01 Oped Ag Protective helmet
US20090320185A1 (en) * 2006-11-10 2009-12-31 Andreas Hassler Protective helmet
US20080250548A1 (en) * 2007-04-13 2008-10-16 Stuhmiller James H Anti-blast and shock optimal reduction buffer
US10561193B2 (en) 2007-04-16 2020-02-18 Riddell, Inc. Protective sports helmet
US10271605B2 (en) 2007-04-16 2019-04-30 Riddell, Inc. Protective sports helmet
US20130125295A1 (en) * 2007-07-25 2013-05-23 Wesley W.O. Krueger Impact reduction system
US20110072565A1 (en) * 2007-07-25 2011-03-31 Krueger Wesley W O Inflatable air recoil suppressor
US8713716B2 (en) * 2007-07-25 2014-05-06 Wesley W. O. Krueger Impact reduction system
US8347421B2 (en) 2007-07-25 2013-01-08 Body Armour Technology, Llc Impact reduction system
US7917972B1 (en) * 2007-07-25 2011-04-05 Body Armour Technology, Llc Inflatable air recoil suppressor
US9451795B2 (en) 2007-07-25 2016-09-27 Wesley W. O. Krueger Impact reduction system
US8848368B2 (en) 2007-11-21 2014-09-30 Frampton E. Ellis Computer with at least one faraday cage and internal flexibility sipes
US8670246B2 (en) 2007-11-21 2014-03-11 Frampton E. Ellis Computers including an undiced semiconductor wafer with Faraday Cages and internal flexibility sipes
US9568946B2 (en) 2007-11-21 2017-02-14 Frampton E. Ellis Microchip with faraday cages and internal flexibility sipes
US20090260133A1 (en) * 2008-04-18 2009-10-22 Del Rosario John A Impact Absorbing Frame and Layered Structure System for Safety Helmets
US20110198788A1 (en) * 2010-02-12 2011-08-18 James Michael Hines Shock wave generation, reflection and dissipation device.
US8966669B2 (en) 2010-02-12 2015-03-03 James Michael Hines Shock wave generation, reflection and dissipation device
US20120304367A1 (en) * 2010-02-26 2012-12-06 Thl Holding Company, Llc Protective helmet
US20110209272A1 (en) * 2010-03-01 2011-09-01 Drake Carl Protective sports helmet with energy-absorbing padding and a facemask with force-distributing shock absorbers
US20110225706A1 (en) * 2010-03-19 2011-09-22 Brian Pye Hybrid Head Covering
US8726424B2 (en) 2010-06-03 2014-05-20 Intellectual Property Holdings, Llc Energy management structure
US9498014B2 (en) 2010-07-22 2016-11-22 Kranos Ip Corporation Protective helmet
US10285466B2 (en) 2010-07-22 2019-05-14 Kranos Ip Corporation Football helmet with shell section defined by a non-linear channel
US10470514B2 (en) 2010-07-22 2019-11-12 Kranos Ip Corporation Football helmet with movable shell segment
US10470516B2 (en) 2010-07-22 2019-11-12 Kranos Ip Corporation Impact attenuation system for a protective helmet
US10470515B2 (en) 2010-07-22 2019-11-12 Kranos Ip Corporation Football helmet with pressable front section
US10736372B2 (en) 2010-07-22 2020-08-11 Kanos Ip Corporation Impact attenuation system for a protective helmet
WO2012012760A2 (en) * 2010-07-22 2012-01-26 Wingo-Princip Management, Llc Protective helmet
WO2012012760A3 (en) * 2010-07-22 2014-03-20 Wingo-Princip Management, Llc Protective helmet
US10448691B2 (en) 2010-07-22 2019-10-22 Kranos Ip Corporation Football helmet with movable flexible section
US10357075B2 (en) 2010-07-22 2019-07-23 Kranos Ip Corporation Impact attenuation system for a protective helmet
WO2012094733A1 (en) * 2011-01-10 2012-07-19 2156389 Ontario Inc. Impact attenuating bladder with fluid release control valve for a helmet liner
US9289023B2 (en) 2011-01-10 2016-03-22 2156389 Ontario, Inc. Impact attenuating bladder with fluid release control valve for helmet liner
US11766085B2 (en) 2011-02-09 2023-09-26 6D Helmets, Llc Omnidirectional energy management systems and methods
USD916385S1 (en) 2011-05-02 2021-04-13 Riddell, Inc. Football helmet
US9119431B2 (en) * 2011-05-23 2015-09-01 Juliana Bain Helmet for reducing concussive forces during collision
US20120297525A1 (en) * 2011-05-23 2012-11-29 Juliana Bain Helmet for Reducing Concussive Forces During Collision
USD679058S1 (en) 2011-07-01 2013-03-26 Intellectual Property Holdings, Llc Helmet liner
US20130000017A1 (en) * 2011-07-01 2013-01-03 Intellectual Property Holdings, Llc Helmet impact liner system
US9516910B2 (en) * 2011-07-01 2016-12-13 Intellectual Property Holdings, Llc Helmet impact liner system
US20130014689A1 (en) * 2011-07-11 2013-01-17 Papp John P Helmet cover
US9062939B2 (en) * 2011-07-11 2015-06-23 John P. Papp Helmet cover
US10238162B2 (en) * 2011-07-21 2019-03-26 Brainguard Technologies, Inc. Energy and impact transformer layer
US20130019385A1 (en) * 2011-07-21 2013-01-24 Brainguard Technologies, Inc. Energy and impact transformer layer
US10874162B2 (en) 2011-09-09 2020-12-29 Riddell, Inc. Protective sports helmet
US11503872B2 (en) * 2011-09-09 2022-11-22 Riddell, Inc. Protective sports helmet
US20220240617A1 (en) * 2011-09-09 2022-08-04 Riddell, Inc. Protective sports helmet
US11311067B2 (en) 2011-09-09 2022-04-26 Riddell, Inc. Protective sports helmet
US8713717B2 (en) 2011-09-13 2014-05-06 Robert E. Cleva Protective athletic headwear with open top
US9247778B2 (en) 2011-09-13 2016-02-02 Robert E. Cleva Form-fitting protective headwear
US8458820B2 (en) 2011-09-13 2013-06-11 Robert E. Cleva Form-fitting protective headwear
US20140223642A1 (en) * 2011-09-13 2014-08-14 Robert E. Cleva Protective athletic headwear with open top
US8689365B2 (en) 2011-09-13 2014-04-08 Robert E. Cleva Form-fitting protective headwear
US8789212B2 (en) 2011-09-13 2014-07-29 Robert E. Cleva Protective athletic headwear with open top
US8984670B2 (en) * 2011-09-13 2015-03-24 Robert E. Cleva Protective athletic headwear with open top
US8347419B1 (en) 2011-09-13 2013-01-08 Cleva Robert E Form-fitting protective headwear
US8898819B2 (en) 2011-09-13 2014-12-02 Robert E. Cleva Form-fitting protective headwear
US8973171B2 (en) 2011-09-13 2015-03-10 Robert E. Cleva Form-fitting protective headwear
USD683079S1 (en) 2011-10-10 2013-05-21 Intellectual Property Holdings, Llc Helmet liner
US20130111653A1 (en) * 2011-11-04 2013-05-09 Otos Wing Co., Ltd. Air cushion for attaching headband of welding mask
US8661570B2 (en) * 2011-11-04 2014-03-04 Otos Wing Co., Ltd. Air cushion for attaching headband of welding mask
US8950735B2 (en) 2011-12-14 2015-02-10 Xenith, Llc Shock absorbers for protective body gear
US8814150B2 (en) 2011-12-14 2014-08-26 Xenith, Llc Shock absorbers for protective body gear
US9420843B2 (en) * 2011-12-16 2016-08-23 Oakwood Energy Management, Inc. Rebounding cushioning helmet liner
US20130152287A1 (en) * 2011-12-16 2013-06-20 Oakwood Energy Management, Inc. Rebounding cushioning helmet liner
US8966668B2 (en) * 2011-12-20 2015-03-03 Andrew Cameron Sutton Web and bladder suspension protection system
US20140359912A1 (en) * 2011-12-20 2014-12-11 Andrew Cameron Sutton Web and bladder suspension protection system
US20130152285A1 (en) * 2011-12-20 2013-06-20 Drandalie, Llc. Lightweight and Flexible Protective Equipment System
US9392833B2 (en) * 2012-01-06 2016-07-19 Michcar Partners, Llc Protective helmet
US9420842B2 (en) * 2012-01-06 2016-08-23 Michcar Partners, Llc Protective helmet
US20140123371A1 (en) * 2012-01-06 2014-05-08 Michcar Partners, Llc Protective helmet
US9113672B2 (en) * 2012-01-06 2015-08-25 Michcar Partners, Llc Protective helmet
US20130174331A1 (en) * 2012-01-06 2013-07-11 Michcar Partners, Llc Protective helmet
US10321724B2 (en) * 2012-02-16 2019-06-18 WB Development Company, LLC Personal impact protection device
US11805826B2 (en) * 2012-02-16 2023-11-07 WB Development Company, LLC Personal impact protection device
US20130212783A1 (en) * 2012-02-16 2013-08-22 Walter Bonin Personal Impact Protection Device
US11278076B2 (en) 2012-03-06 2022-03-22 Loubert S. Suddaby Protective helmet with energy storage mechanism
US10165818B2 (en) 2012-03-06 2019-01-01 Loubert S. Suddaby Protective helmet
US10517347B2 (en) 2012-03-06 2019-12-31 Loubert S. Suddaby Helmet with multiple protective zones
WO2013134063A1 (en) * 2012-03-06 2013-09-12 Suddaby Loubert S Helmet with multiple protective zones
US10517346B2 (en) 2012-03-06 2019-12-31 Loubert S. Suddaby Helmet with multiple protective zones
US9795178B2 (en) 2012-03-06 2017-10-24 Loubert S. Suddaby Helmet with multiple protective zones
JP2015513008A (en) * 2012-03-06 2015-04-30 エス．スッダビ ロウベルト Helmet with multiple protective zones
US9980531B2 (en) 2012-03-06 2018-05-29 Loubert S. Suddaby Protective helmet with energy storage mechanism
US11109632B2 (en) 2012-03-06 2021-09-07 Loubert S. Suddaby Protective helmet
US9462842B2 (en) * 2012-04-04 2016-10-11 University Of Ottawa Head protection for reducing linear acceleration
US20140013491A1 (en) * 2012-04-04 2014-01-16 University Of Ottawa Head Protection for Reducing Linear Acceleration
WO2013163106A1 (en) 2012-04-25 2013-10-31 Baty David Protective headgear
US9021616B2 (en) 2012-04-25 2015-05-05 David Baty Protective gear
US9320311B2 (en) * 2012-05-02 2016-04-26 Intellectual Property Holdings, Llc Helmet impact liner system
US20130291289A1 (en) * 2012-05-02 2013-11-07 Intellectual Property Holdings, Llc Helmet impact liner system
US10258100B1 (en) 2012-06-18 2019-04-16 Kranos Ip Corporation Football helmet with raised plateau
US10376011B2 (en) 2012-06-18 2019-08-13 Kranos Ip Corporation Football helmet with raised plateau
US9174111B2 (en) 2012-07-06 2015-11-03 Warrior Sports, Inc. Protective athletic equipment
US10595578B2 (en) 2012-10-04 2020-03-24 Intellectual Property Holdings, Llc Helmet retention system
US9894953B2 (en) 2012-10-04 2018-02-20 Intellectual Property Holdings, Llc Helmet retention system
US11419383B2 (en) 2013-01-18 2022-08-23 Riddell, Inc. System and method for custom forming a protective helmet for a customer's head
US10948898B1 (en) 2013-01-18 2021-03-16 Bell Sports, Inc. System and method for custom forming a protective helmet for a customer's head
US11889883B2 (en) 2013-01-18 2024-02-06 Bell Sports, Inc. System and method for forming a protective helmet for a customer's head
US20180042329A1 (en) * 2013-02-06 2018-02-15 Turtle Shell Protective Systems Llc Helmet with external shock wave dampening panels
US20140215694A1 (en) * 2013-02-06 2014-08-07 Darin Grice Helmet with external shock wave dampening panels
US11559100B2 (en) * 2013-02-06 2023-01-24 Turtle Shell Protective Systems Llc Helmet with external shock wave dampening panels
US10806203B2 (en) * 2013-02-06 2020-10-20 Turtle Shell Protective Systems Llc Helmet with external shock wave dampening panels
US9642410B2 (en) * 2013-02-06 2017-05-09 Turtle Shell Protective Systems Llc Helmet with external shock wave dampening panels
US20230103707A1 (en) * 2013-02-06 2023-04-06 Turtle Shell Protective Systems Llc Helmet with external shock wave dampening panels
US11910859B2 (en) 2013-02-12 2024-02-27 Riddell, Inc. Football helmet with impact attenuation system
US9770060B2 (en) * 2013-02-12 2017-09-26 Riddell, Inc. Pad assemblies for a protective sports helmet
US11399588B2 (en) 2013-02-12 2022-08-02 Riddell, Inc. Pad assemblies for a protective sports helmet
US10624407B2 (en) 2013-02-12 2020-04-21 Riddell, Inc. Pad assemblies for a protective sports helmet
US20140223643A1 (en) * 2013-02-12 2014-08-14 Riddell, Inc. Pad assemblies for a protective sports helmet
US10582737B2 (en) 2013-02-12 2020-03-10 Riddell, Inc. Football helmet with impact attenuation system
WO2014150694A3 (en) * 2013-03-15 2015-01-08 Suddaby Loubert S Helmet with multiple protective zones
US9717297B2 (en) 2013-05-31 2017-08-01 Lenard Harris Shell for a protective helmet
USD733972S1 (en) 2013-09-12 2015-07-07 Intellectual Property Holdings, Llc Helmet
US20150101899A1 (en) * 2013-10-11 2015-04-16 Rousseau Research, Inc. Protective athletic equipment
US9841075B2 (en) * 2013-10-11 2017-12-12 Rousseau Research, Inc. Protective athletic equipment
US9743701B2 (en) 2013-10-28 2017-08-29 Intellectual Property Holdings, Llc Helmet retention system
US9820524B1 (en) 2013-11-13 2017-11-21 John E. Whitcomb Helmet having non-bursting air cells
US10105584B1 (en) 2013-11-13 2018-10-23 John E. Whitcomb Body protective padding with non-bursting gas cells
US10363477B1 (en) 2013-11-13 2019-07-30 John E. Whitcomb Body protective padding with non-bursting gas cells
US10278445B1 (en) 2013-11-13 2019-05-07 John E. Whitcomb Helmet having non-bursting gas cells
US10561191B1 (en) 2013-11-13 2020-02-18 John E. Whitcomb Helmet having high pressure non-bursting gas cells
US8898818B1 (en) 2013-11-13 2014-12-02 John E. Whitcomb Helmet having blunt force trauma protection
US8844066B1 (en) 2013-11-13 2014-09-30 John E. Whitcomb Integrated helmet having blunt force trauma protection
US10362829B2 (en) 2013-12-06 2019-07-30 Bell Sports, Inc. Multi-layer helmet and method for making the same
US11291263B2 (en) 2013-12-06 2022-04-05 Bell Sports, Inc. Multi-layer helmet and method for making the same
US11871809B2 (en) 2013-12-06 2024-01-16 Bell Sports, Inc. Multi-layer helmet and method for making the same
US10244809B2 (en) 2013-12-18 2019-04-02 Linares Medical Devices, Llc Helmet for attenuating impact event
US10264841B2 (en) 2013-12-18 2019-04-23 Linares Medical Devices, Llc Helmet for attenuating impact event
US10368604B2 (en) 2013-12-18 2019-08-06 Linares Medical Devices, Llc Helmet for attenuating impact event
US9468249B2 (en) * 2014-02-11 2016-10-18 Janice Geraldine Fraser Protective headgear
US20150223545A1 (en) * 2014-02-11 2015-08-13 Janice Geraldine Fraser Protective headgear
USD927078S1 (en) 2014-02-12 2021-08-03 Riddell, Inc. Football helmet
USD844255S1 (en) 2014-02-12 2019-03-26 Riddell, Inc. Football helmet
US9370214B1 (en) * 2014-03-10 2016-06-21 John E. Whitcomb Helmet having blunt force trauma protection
US9173445B1 (en) 2014-03-10 2015-11-03 John E. Whitcomb Integrated helmet having blunt force trauma protection
US10219572B1 (en) * 2014-03-10 2019-03-05 John E. Whitcomb Baseball cap having impact protection
US9332799B1 (en) * 2014-10-14 2016-05-10 Helmet Technologies LLC Protective apparatus and method for dissipating force
US10327482B1 (en) * 2014-10-14 2019-06-25 Helmet Technologies LLC Apparatus and method for dissipating force
US10721987B2 (en) 2014-10-28 2020-07-28 Bell Sports, Inc. Protective helmet
US11638457B2 (en) 2014-10-28 2023-05-02 Bell Sports, Inc. Protective helmet
US20190059497A1 (en) * 2015-05-07 2019-02-28 Exero Labs LLC Device for minimizing impact of collisions for a helmet
US10881162B2 (en) * 2015-05-07 2021-01-05 Exero Labs LLC Device for minimizing impact of collisions for a helmet
US9756891B1 (en) * 2015-06-11 2017-09-12 James Robb McGhie Apparatus for protecting the head of a person from an external force
US9439468B1 (en) * 2015-06-19 2016-09-13 Ethan Wayne Blagg Protective athletic helmet
US20170232327A1 (en) * 2016-02-12 2017-08-17 Carl Kuntz Impact absorption padding for contact sports helmets
US10238950B2 (en) * 2016-02-12 2019-03-26 Carl Kuntz Impact absorption padding for contact sports helmets
US10219574B2 (en) * 2016-06-27 2019-03-05 Choon Kee Lee Mechanical-waves dissipating protective headgear apparatus
US20170367431A1 (en) * 2016-06-27 2017-12-28 Choon Kee Lee Mechanical-waves Dissipating Protective Headgear Apparatus
US11712615B2 (en) 2016-07-20 2023-08-01 Riddell, Inc. System and method of assembling a protective sports helmet
US11213736B2 (en) 2016-07-20 2022-01-04 Riddell, Inc. System and methods for designing and manufacturing a bespoke protective sports helmet
US20180098595A1 (en) * 2016-10-07 2018-04-12 William STECK Apparatus and method for improving impact performance of helmets
US11147334B2 (en) * 2016-10-07 2021-10-19 William STECK Apparatus and method for improving impact performance of helmets
US11229255B2 (en) * 2016-11-08 2022-01-25 JMH Consulting Group, LLC Helmet
US20180125143A1 (en) * 2016-11-08 2018-05-10 JMH Consulting Group, LLC Helmet
WO2018129447A1 (en) 2017-01-09 2018-07-12 Suddaby Loubert S Protective helmet
US11632999B2 (en) * 2017-02-13 2023-04-25 The Board Of Trustees Of The Leland Stanford Junior University Constant force impact protection device
US20180360155A1 (en) * 2017-06-16 2018-12-20 Sekund Skull Inc. Protective device for use with helmets
US11553752B2 (en) * 2017-07-20 2023-01-17 Ryan C. EILER Safety helmet with interchangeable layers
US20230117538A1 (en) * 2017-07-20 2023-04-20 EILER Ryan C Safety helmet with interchangeable layers
US11547158B2 (en) * 2017-10-13 2023-01-10 Titon Ideas, Inc. Fluid-actuated impact protection system and method
US11690423B2 (en) 2017-10-25 2023-07-04 Turtle Shell Protective Systems Llc Helmet with external flexible cage
US11134738B2 (en) 2017-10-25 2021-10-05 Turtle Shell Protective Systems Llc Helmet with external flexible cage
US11259588B2 (en) * 2018-05-29 2022-03-01 William O. Young Athletic helmet
US11399589B2 (en) 2018-08-16 2022-08-02 Riddell, Inc. System and method for designing and manufacturing a protective helmet tailored to a selected group of helmet wearers
US10813403B2 (en) 2018-11-01 2020-10-27 Kranos Ip Corporation Football helmet having exceptional impact performance
US11167198B2 (en) 2018-11-21 2021-11-09 Riddell, Inc. Football helmet with components additively manufactured to manage impact forces
USD927084S1 (en) 2018-11-22 2021-08-03 Riddell, Inc. Pad member of an internal padding assembly of a protective sports helmet
US20220378139A1 (en) * 2019-11-18 2022-12-01 Nfm As Helmet
US11638456B1 (en) 2020-03-31 2023-05-02 Rose Matteucci Dispersing helmet safety system and method
US11229254B1 (en) * 2020-03-31 2022-01-25 Rose Elizabeth Matteucci Dispersing helmet safety system and method

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