US20160270470A1 - Adjustable helmet chinstrap - Google Patents
Adjustable helmet chinstrap Download PDFInfo
- Publication number
- US20160270470A1 US20160270470A1 US14/937,130 US201514937130A US2016270470A1 US 20160270470 A1 US20160270470 A1 US 20160270470A1 US 201514937130 A US201514937130 A US 201514937130A US 2016270470 A1 US2016270470 A1 US 2016270470A1
- Authority
- US
- United States
- Prior art keywords
- chinstrap
- helmet
- knob
- cord
- adjustment knob
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- 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
- A42B3/08—Chin straps or similar retention devices
Abstract
Presently disclosed embodiments provide a safe and easy way for a child, or other wearer, to independently tighten or loosen the chinstrap on his or her helmet while it remains buckled on his or her head. Disclosed embodiments comprise a knob attached to a side of the chinstrap webbing. The knob is an adjustment mechanism used to loosen or tighten the helmet chinstrap. After the wearer, possibly a child, buckles the helmet chinstrap below his or her chin, the wearer can reach up and twist the knob to loosen or tighten the chinstrap to achieve the proper fit. In some embodiments, each knob may have a cord or the like affixed at one end to an interior assembly and affixed at another end to the chinstrap material. In operation, the chinstrap may be buckled under the chin, and then the knob may be rotated forward, the attached cord is shortened and, thus, the chinstrap may be tightened. In some embodiments, the cording remains locked or set in position due to the operation of a ratchet, or ratchet-type assembly located in the interior of one or more of the knob assemblies where the cording winds. Similarly, when the wearer twists the one or more of the knobs in the opposite direction, the cording lengthens and, thus, loosens the chinstrap until the proper fit is achieved. Again, the cording remains locked or set in position until the knob is twisted again. In this manner, disclosed embodiments allows the wearer to easily and quickly adjust the fit of the helmet as necessary and ensure a proper and safe fit.
Description
- This application, under 35 U.S.C. §119, claims the benefit of U.S. Provisional Patent Application Ser. No. 62/133,466 filed on Mar. 16, 2015, and titled “Adjustable Chinstrap For Children's Sports Helmet,” the contents of which are hereby incorporated by reference herein.
- This disclosure relates to fasteners for helmets. In particular, this disclosure relates to a fastener for a helmet chinstrap that can be easily adjusted and, in many cases, adjusted by a child.
- Helmets are a widely used and well-known piece of safety equipment and are often worn in sporting activities such as bicycling, skate boarding, skiing, snowboarding, rock climbing, hockey, lacrosse, football, and the like. Typically, these helmets include a durable outer shell, a padding assembly within the outer shell, and a chinstrap connected to each side of the outer shell and intended to be fastened under the wearer's chin to help hold the helmet in place. Typically, the chinstrap is fastened in place by a buckle or other snap-fit mechanism that is part of the chinstrap. A properly adjusted chinstrap is important for a comfortable fit and to maximize the safe operation of the helmet. Typically, the chinstrap is adjusted by having the wearer slide or maneuver one or both sides of the chinstrap through a strap-length adjustment mechanism, such as D-rings, ladderlocks, buckles, or the like in order to achieve a snug, safe fit.
- Existing adjustment mechanisms, such as the above-described, have a number of drawbacks. For example, the wearer of the helmet is often a child, without sufficient strength, coordination, or know-how to adjust the chinstrap properly. In addition, the adjustment mechanisms are often located at inconvenient locations and require iterative removal and replacement of the helmet to adjust to the proper fit. Likewise, the strap material is typically thick for strength purposes, but can be difficult to maneuver through the adjustment mechanism due to the strap thickness.
- Thus, existing adjustment systems can be cumbersome and frustrating to adjust, particularly when the wearer is a child and can lead to potentially unsafe helmet fit. For example, if a chinstrap is too tight the skin under the chin may be accidentally pinched during buckling which is not only painful, but can also negatively affect the wearer's desire for proper, snug fit of the chinstrap. Likewise, frequent buckling and unbuckling of the chinstrap, and the associated tugging on the strap, often loosens the adjustment mechanism resulting in an unsafe, too loose fit. Improper chinstrap adjustment and fit can compromise or render useless the helmet's safety features which could lead to serious injury to the wearer. Other drawbacks of existing helmet chinstrap adjustment systems may also exist.
- In view of the above and other drawbacks with existing systems, there exists a need for an adjustable chinstrap for helmets that can be easily, reliably, and quickly adjusted without the need to remove the helmet from the wearer's head or require the assistance of another. What is needed is an adjustment mechanism that is easily reachable and adjustable and will not compromise the safety and functionality of the helmet.
- Accordingly, the present disclosure provides safe, easy ways to adjust a chinstrap while it remains buckled and with the helmet still in place on the wearer's head.
- Disclosed embodiments include a helmet having a protective cover, a chinstrap, and an adjustment knob connected between the protective cover and the chinstrap and wherein rotation of the adjustment knob adjusts the position of the chinstrap.
- Other disclosed embodiments include a helmet with a cord connected between the chinstrap and the adjustment knob and wherein rotation of the adjustment knob coils or uncoils the cord and adjusts that position of the chinstrap.
- Other disclosed embodiments include a helmet with a lock mechanism to selectively hold the adjustment knob in position after rotation.
- In further disclosed embodiments, the adjustment knob further comprises a winding disk that upon rotation winds or unwinds a cord connected to the chinstrap, a spring in connection with the winding disk to bias the rotation of the winding disk in a first direction, a ratchet wheel having at least one arm, and an outer shell having a rim with a first portion comprising at least one tooth shaped to engage the at least one arm of the ratchet wheel when the outer shell is in a first position, and a second portion without teeth that allows the spring to rotate the winding disk in the first direction when the outer shell is in a second position. In some embodiments, the rotation of the winding disk in the first direction causes the cord to unwind.
- In other disclosed embodiments the adjustment knob further comprises, a winding disk that upon rotation in a first direction winds a cord connected to the chinstrap and upon rotation in a second direction unwinds the cord connected to the chinstrap, a ratchet wheel comprising at least one first arm at a first location on the ratchet wheel and at least one second arm at a second location on the ratchet wheel, and an outer shell having at least one first tooth at a first location on the outer shell and shaped to engage the at least one first arm on the ratchet wheel when the outer shell is rotated in the first direction and at least one second tooth at a second location on the outer shell and shaped to engage the at least one second arm on the ratchet wheel when the outer shell is rotated in the second direction.
- In some embodiments, the rotation of the winding disk in the first direction causes the cord to unwind and rotation of the winding disk in the second direction causes the cord to wind.
-
FIG. 1 is a schematic side view showing an example of a bicycle helmet embodiment in accordance with the disclosure. -
FIG. 2 is a schematic front view of the embodiment shown inFIG. 1 . -
FIG. 3 is a top-isometric, exploded view of an adjustment knob assembly in accordance with the disclosure. -
FIG. 4 is a bottom-isometric, exploded view of an adjustment knob assembly in accordance with the disclosure. -
FIGS. 5A-5D are various views of an adjustment knob assembly in accordance with the disclosure. -
FIG. 6 is a top-isometric, exploded view of an adjustment knob assembly in accordance with the disclosure. -
FIG. 7 is a bottom-isometric, exploded view of an adjustment knob assembly in accordance with the disclosure. - While the disclosure is susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described in detail herein. However, it should be understood that the disclosure is not intended to be limited to the particular forms disclosed. Rather, the intention is to cover all modifications, equivalents and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
- Presently disclosed embodiments provide a safe and easy way for a child, or other wearer, to independently tighten or loosen the chinstrap on his or her helmet while it remains buckled on his or her head. Disclosed embodiments comprise a small, twistable knob attached to each side of the chinstrap webbing right below each ear. The knobs comprise the adjustment mechanism used to loosen or tighten the helmet chinstrap. After the wearer, possibly a child, buckles the helmet chinstrap below his or her chin, the wearer can reach up and twist one or both knobs to loosen or tighten the chinstrap to achieve the proper fit. In some embodiments, each knob may have a cord or the like affixed at one end to an interior assembly and affixed at another end to the chinstrap material. For example, in embodiments where the chinstrap is webbing material, the cord may be fused between two layers of the webbing material. The other ends of the chinstrap may respectively be attached to the buckle or other snap fit assembly. In operation, the chinstrap may be buckled under the chin, and then one or more of the knobs may be rotated forward, the attached cord is shortened and, thus, the chinstrap may be tightened. In some embodiments, the cording remains locked or set in position due to the operation of a ratchet, or ratchet-type assembly located in the interior of one or more of the knob assemblies where the cording winds. Similarly, when the wearer twists the one or more of the knobs in the opposite direction, the cording lengthens and, thus, loosens the chinstrap until the proper fit is achieved. Again, the cording remains locked or set in position until the knob is twisted again. In this manner, disclosed embodiments allows the wearer to easily and quickly adjust the fit of the helmet as necessary and ensure a proper and safe fit.
- In some embodiments, such as the one shown in
FIGS. 1 and 2 , there is provided ahelmet 10 which may comprise aprotective cover 12, apadding assembly 14, achinstrap 16, and head-size adjustment assembly 18. While thehelmet 10 shown inFIGS. 1-2 is generally shaped as a bicycle helmet, the disclosure is not so limited, and the principles disclosed herein may be applied toother helmets 10, such as football helmets, hockey helmets, lacrosse helmets, skating helmets, rock climbing helmets, hardhats, or the like. Of course, the configuration of the various component parts (e.g.,protective cover 12,padding assembly 14,chinstrap 16, head-size adjustment assembly 18, etc.) may vary, or some components may not be present, depending upon the type of helmet and intended application of the same. - As also shown in
FIGS. 1-2 , some embodiments may comprise a snap-fit connector 20 or other buckle mechanism to connect the two pieces ofchinstrap 16 together. While a snap-fit connector 20 is illustrated inFIGS. 1-2 , the disclosure is not so limited andother chinstrap 16 connectors may be used. For example, D-ring closures, buckles, or the like, may also be used in place of snap-fit connector 20. In addition, some embodiments may exclude the snap-fit connector 20 entirely and use asingle piece chinstrap 20. Other configurations (e.g., multiple straps) are also possible. - As also shown in
FIGS. 1-2 , some embodiments may comprise adjustment knobs 22 on at least one side of thehelmet 10. Other locations for the adjustment knob are also possible. For example, one or more adjustment knobs 22 may be placed on the front, top, or back ofhelmet 10. Other configurations are also possible. - As also shown in
FIGS. 1-2 , some embodiments may comprise acord 24.Cord 24 may comprise any material suitable for coiling via motion ofadjustment knob 22. For example,cord 24 may comprise, wire, wire-like material, nylon cording, other synthetic or plastic material (polyesters, polyurethanes, polymers, etc.), natural fiber materials (cotton, hemp, linen, silk), rubber, rubber-like material, composites, combinations of the foregoing, or the like. In general,cord 24 is preferably of a size and flexibility that allowcord 24 to be coiled and uncoiled through the action ofadjustment knob 22 thereby tightening or loosening thechinstrap 16 as disclosed herein. - As disclosed herein, for some embodiments, one end of
cord 24 may engage a spool, axel, pulley or the like withinadjustment knob 22 assembly. In some embodiments, motion of theadjustment knob 22 in one direction coils, or otherwise shortens, thecord 24 thereby tightening thechinstrap 16 and motion of theadjustment knob 22 in the opposite direction uncoils, or otherwise lengthens, thecord 24 thereby loosening thechinstrap 16. Disclosed embodiments also include stop or lockable mechanisms in theadjustment knob 22 assembly to hold thechinstrap 16 in the desired position. Likewise, in other embodiments, it may be convenient to havecord 24 attached tohelmet 10 andchinstrap 16 attached to theadjustment knob 22 then the coiling and uncoiling ofcord 24 caused theadjustment knob 22 to travel closer or farther from thehelmet 10 and thereby tighten or loosen thechinstrap 16. -
FIGS. 3 and 4 are top and bottom exploded views of components ofadjustment knob 22 assemblies in accordance with some disclosed embodiments. As shown embodiments ofadjustment knob 22 may comprise a number of constituent parts. For example,adjustment knob 22 may comprise aninner shell 220 having acentral axel 224 and acord 24aperture 222. In someembodiments cord 24 passes throughaperture 222 and attaches to chinstrap 16 as described herein. Windingdisk 226 may nest insideinner shell 222 and may comprise aninner spool 228 having gearing orinner teeth 230, aspring stop 232, aspring anchor slot 233, and anaperture 234. In some embodiments, aspring 236, such as a coil spring or the like, may have one end engaged inspring anchor slot 233 and the other endadjacent spring stop 232. In this manner twisting or torsional movement ofadjustment knob 22 causesspring 236 to compress or expand as windingdisk 226 moves. In someembodiments aperture 234 may be used to anchor one end ofchord 24. Anchoring ofchord 24 may be accomplished in any suitable manner, such as by a knot in the end ofchord 24 to prevent passage throughaperture 234, by gluing, by set screw, or the like. - Embodiments of
adjustment knob 22 may also compriseratchet wheel 238.Ratchet wheel 238 may further comprise one ormore arms 240 spaced around the circumference ofratchet wheel 238.Ratchet wheel 238 may also comprise anub 239 on an inner circumference ofratchet wheel 238 and sized and shaped to engagespring stop 232 and thereby impart the torsional motion ofratchet wheel 238 to the windingdisk 226. Whilespring stop 232 andnub 239 are shown as generally rectangular in shape, the disclosure is not so limited and other shapes, sizes, and configurations are possible. - Embodiments of
adjustment knob 22 may also comprise anouter shell 242 having one ormore teeth 244 on an inner circumference. As indicated inFIG. 4 , in some embodiments,teeth 244 may only extend for a portion of therim 245 onouter shell 242.Outer shell 242 may also comprise anouter spool 247 havingouter teeth 246. - In some embodiments,
outer shell 242 is sized to fit overinner shell 220 in order to enclose the above-described components into a unit that comprises theadjustment knob 22 or cooperates withadjustment knob 22 to adjust thechinstrap 16 as disclosed herein. For example, embodiments ofouter shell 242 may comprise knurling or grooves onrim 245 to present a graspable surface which a wearer may grip and turn theadjustment knob 22. In other embodimentsouter shell 242 may further comprise asurface 248 which mates with, is connected or adhered to, or otherwise cooperates with a cover or the like (e.g., as shown inFIGS. 1-2 ) to function asadjustment knob 22. Other configurations are also possible. -
FIGS. 5A-5D illustrated the assembly of theadjustment knob 22 in accordance with some disclosed embodiments. As illustrated inFIG. 5A inner shell 220 holds windingdisk 226 oncentral axel 224. As illustrated inFIG. 5B spring 236 may then be mounted on windingdisk 226 by inserting one end intospring anchor slot 233 and placing the other end of thespring 236 adjacent tospring stop 232. As illustrated inFIG. 5C ratchet wheel 238 fits over windingdisk 226 and may be substantially the same diameter asinner shell 220. In some embodiments nub 239 may also have aspring anchor 249, such as a slot or groove, in which an end ofspring 236 may fit. As illustrated inFIG. 5D outer shell 242 fits overinner shell 220 andratchet wheel 238 covering them withrim 245.Rim 245 may be of such a depth thatinner shell 220 andratchet wheel 238 may move axially in and out (up and down inFIG. 5D ) withinouter shell 242. This axial motion enablesarms 240 to selectively engageteeth 244 and, when in contact, hold theadjustment knob 22 in position. - In operation of some embodiments a wearer may push in (axially) on the outer shell 242 (either directly or via adjustment knob 22) causing
outer teeth 246 to engageinner teeth 230. The wearer may then rotate the outer shell (again, either directly or via adjustment knob 22) and cause rotation of theouter shell 242 with respect to theinner shell 220.Ratchet arms 240 are shaped to slip overteeth 244 in one direction of rotation (e.g., clockwise inFIG. 5C ) and engage theteeth 244 in the other (e.g., counter-clockwise inFIG. 5C ). In this manner the action ofspring 236,arms 240, andteeth 244 keep theadjustment knob 22 from rotating once a desired position for thechinstrap 16 is achieved. - In some embodiments the
adjustment knob 22 andchinstrap 16 may be released by pulling axially outward on theouter shell 242 which, for example, movesarms 240 into the portion ofrim 245 that lacks teeth 244 (see, e.g.,FIG. 4 orFIG. 5D ) then the action of thespring 236 will rotate the windingdisk 226,unspool chord 24 and loosenchinstrap 16. -
FIGS. 6-7 illustrate, respectively, a top and bottom, isometric, exploded view in accordance with disclosed embodiments of theadjustment knob 22. As shown inFIGS. 6-7 , some embodiments of theadjustment knob 22 may ratchet in either direction of rotation (e.g., clockwise and counter-clockwise) and, thus, hold thecord 24 andchinstrap 16 in place in either direction of rotation. Among other things, such embodiments reduce the need for a biasing spring to drive the winding disk (e.g., 226 or 626) in the opposite direction. - As shown in
FIGS. 6-7 , and similarly to the embodiments shown inFIGS. 3-5 , theadjustment knob 22 may comprise aninner shell 620 having acentral axel 624 and anaperture 622. Inner shell may also comprise a ladderlock, D-ring, orother attachment mechanism 652 to connect theadjustment knob 22 to thehelmet 10 or tochinstrap 16. As with theabove embodiments aperture 622 may be used to allowcord 24 to enter intoadjustment knob 22. Embodiments also comprise a windingdisk 626 having anotheraperture 634 through whichcord 24 may be anchored. Windingdisk 626 may also compriseinner teeth 630. Embodiments also comprise aratchet wheel 638 with a clockwise-engaging set ofarms 640 a and a counter-clockwise-engaging set ofarms 640 b.Pins 650, feet, nubs, or other engagement mechanism may mate with reciprocal portions ininner shell 620 in order to holdratchet wheel 638 in place during motion of the windingdisk 626. Embodiments also include anouter shell 642 having arim 645 that substantially covers theratchet wheel 638, and windingdisk 626. Outer shell also comprisesouter teeth 646 shaped to engage withinner teeth 630. In some embodiments, outer shell may be fastened tocentral axel 624 via awasher 648 or other bearing, and a screw, rivet, pin, or the like. - As also shown in
FIG. 7 ,outer shell 642 may comprise two rows of oppositely orientedteeth arms teeth knob 22 mounted thereupon) axially inward so that, for example, clockwise-engagingarms 640 a to engageteeth 644 a while counter-clockwise-engagingarms 640 b move to the gap or space in betweenrows teeth 644 b. The wearer can then tighten thechinstrap 16 by turning theadjustment knob 22 clockwise, coilingcord 24, and thearms 640 a andteeth 644 b cooperate to hold it at the desired place. When the wearer wishes to loosen thechinstrap 16,knob 22 may be pulled axially outward causingarms 640 b to engageteeth 644 b whilearms 640 a move into the gap or space and no longer engageteeth 644 a and counter-clockwise motion of windingdisk 626 causes thecord 24 to unwind and loosen thechinstrap 16. Of course, the direction of tightening and loosening is merely exemplary and could be reversed. - Although various embodiments have been shown and described, the present disclosure is not so limited and will be understood to include all such modifications and variations are would be apparent to one skilled in the art.
Claims (7)
1. A helmet comprising:
a protective cover;
a chinstrap; and
an adjustment knob connected between the protective cover and the chinstrap and wherein rotation of the adjustment knob adjusts the position of the chinstrap.
2. The helmet of claim 1 further comprising:
a cord connected between the chinstrap and the adjustment knob and wherein rotation of the adjustment knob coils or uncoils the cord and adjusts that position of the chinstrap.
3. The helmet of claim 1 further comprising:
a lock mechanism to selectively hold the adjustment knob in position after rotation.
4. The helmet of claim 3 wherein the adjustment knob further comprises:
a winding disk that upon rotation winds or unwinds a cord connected to the chinstrap;
a spring in connection with the winding disk to bias the rotation of the winding disk in a first direction;
a ratchet wheel having at least one arm; and
an outer shell having a rim with a first portion comprising at least one tooth shaped to engage the at least one arm of the ratchet wheel when the outer shell is in a first position, and a second portion without teeth that allows the spring to rotate the winding disk in the first direction when the outer shell is in a second position.
5. The helmet of claim 4 wherein the rotation of the winding disk in the first direction causes the cord to unwind.
6. The helmet of claim 3 wherein the adjustment knob further comprises:
a winding disk that upon rotation in a first direction winds a cord connected to the chinstrap and upon rotation in a second direction unwinds the cord connected to the chinstrap;
a ratchet wheel comprising at least one first arm at a first location on the ratchet wheel and at least one second arm at a second location on the ratchet wheel; and
an outer shell having at least one first tooth at a first location on the outer shell and shaped to engage the at least one first arm on the ratchet wheel when the outer shell is rotated in the first direction and at least one second tooth at a second location on the outer shell and shaped to engage the at least one second arm on the ratchet wheel when the outer shell is rotated in the second direction.
7. The helmet of claim 6 wherein the rotation of the winding disk in the first direction causes the cord to unwind and rotation of the winding disk in the second direction causes the cord to wind.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/937,130 US20160270470A1 (en) | 2015-03-16 | 2015-11-10 | Adjustable helmet chinstrap |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562133466P | 2015-03-16 | 2015-03-16 | |
US14/937,130 US20160270470A1 (en) | 2015-03-16 | 2015-11-10 | Adjustable helmet chinstrap |
Publications (1)
Publication Number | Publication Date |
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US20160270470A1 true US20160270470A1 (en) | 2016-09-22 |
Family
ID=56924269
Family Applications (1)
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US14/937,130 Abandoned US20160270470A1 (en) | 2015-03-16 | 2015-11-10 | Adjustable helmet chinstrap |
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US (1) | US20160270470A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180092424A1 (en) * | 2016-10-03 | 2018-04-05 | Revision Military S.A.R.L. | Helmet assembly |
US20190369659A1 (en) * | 2018-06-04 | 2019-12-05 | Htc Corporation | Head-mounted display device |
WO2020081953A1 (en) * | 2018-10-19 | 2020-04-23 | E.D. Bullard Company | Ratchet mechanism for protective helmet headband |
US11089831B1 (en) | 2020-10-23 | 2021-08-17 | DoubleThree, LLC | Incrementally adjustable and pivotable semi-rigid retention strap for a helmet |
US20220061424A1 (en) * | 2020-08-26 | 2022-03-03 | Donovan Hill | Strapless Face Mask |
CN114247054A (en) * | 2022-01-15 | 2022-03-29 | 左新林 | Brain circulation therapeutic instrument for neurology clinic |
US20220401264A1 (en) * | 2019-02-22 | 2022-12-22 | Corey B. Johnson | Breath Deflector and Method of Use |
US11700902B2 (en) | 2020-01-08 | 2023-07-18 | ArmorSource, LLC | Helmet retention system |
WO2024044724A1 (en) * | 2022-08-24 | 2024-02-29 | Resolution Strategic Development, Inc. | Helmet and adjustable chin strap and fit system assemblies |
-
2015
- 2015-11-10 US US14/937,130 patent/US20160270470A1/en not_active Abandoned
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180092424A1 (en) * | 2016-10-03 | 2018-04-05 | Revision Military S.A.R.L. | Helmet assembly |
US20190369659A1 (en) * | 2018-06-04 | 2019-12-05 | Htc Corporation | Head-mounted display device |
US10656670B2 (en) * | 2018-06-04 | 2020-05-19 | Htc Corporation | Head-mounted display device |
WO2020081953A1 (en) * | 2018-10-19 | 2020-04-23 | E.D. Bullard Company | Ratchet mechanism for protective helmet headband |
US11166513B2 (en) | 2018-10-19 | 2021-11-09 | E.D. Bullard Company | Ratchet mechanism for protective helmet headband |
US20220401264A1 (en) * | 2019-02-22 | 2022-12-22 | Corey B. Johnson | Breath Deflector and Method of Use |
US11700902B2 (en) | 2020-01-08 | 2023-07-18 | ArmorSource, LLC | Helmet retention system |
US20220061424A1 (en) * | 2020-08-26 | 2022-03-03 | Donovan Hill | Strapless Face Mask |
US11918063B2 (en) * | 2020-08-26 | 2024-03-05 | Donovan Hill | Strapless face mask |
US11089831B1 (en) | 2020-10-23 | 2021-08-17 | DoubleThree, LLC | Incrementally adjustable and pivotable semi-rigid retention strap for a helmet |
EP4013258A4 (en) * | 2020-10-23 | 2023-11-01 | Doublethree, Llc | Incrementally adjustable and pivotable semi-rigid retention strap for a helmet |
CN114247054A (en) * | 2022-01-15 | 2022-03-29 | 左新林 | Brain circulation therapeutic instrument for neurology clinic |
WO2024044724A1 (en) * | 2022-08-24 | 2024-02-29 | Resolution Strategic Development, Inc. | Helmet and adjustable chin strap and fit system assemblies |
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STCB | Information on status: application discontinuation |
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