US3495272A - Helmet having removable size adjusting means - Google Patents

Helmet having removable size adjusting means Download PDF

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Publication number
US3495272A
US3495272A US590427A US3495272DA US3495272A US 3495272 A US3495272 A US 3495272A US 590427 A US590427 A US 590427A US 3495272D A US3495272D A US 3495272DA US 3495272 A US3495272 A US 3495272A
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Prior art keywords
helmet
bowl
channel
fastening
fastening channel
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Expired - Lifetime
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US590427A
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Hermann Tempelhof
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    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
    • A42B3/324—Adjustable helmets
    • 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
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • A42B3/127—Cushioning devices with a padded structure, e.g. foam with removable or adjustable pads
    • 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
    • A42B3/14—Suspension devices
    • A42B3/145—Size adjustment devices

Definitions

  • This invention is directed to a helmet, and particularly a helmet which has a wide array of convenient interchangeabality, adjustability and utility.
  • the helmet has a bowl and around the open edge of the bowl, the helmet is provided with a recess. Means adapted to fit the helmet to a particular head are engaged in this recess. Furthermore, such fitting means are movable along the length of the recess so that adjustment to a particular head is easily obtained.
  • the fitting means includes such devices as chin straps and head pads. Furthermore, these fitting means are readily removed so that other persons can use the helmet, each person supplying his own fitting means, so that each helmet is personalized to the user.
  • Helmets are well known in the art.
  • the purpose of a helmet is to protect the head of the wearer. Helmets best accomplish this purpose when they have means that permit an accurate fit on the head of the wearer by the head engaging means of the helmet.
  • Helmets best accomplish this purpose when they have means that permit an accurate fit on the head of the wearer by the head engaging means of the helmet.
  • a possibility must be afforded, due to hygienic reasons, to exchange or replace the head engaging means in a simple manner. This is particularly so in civil defense organizations where one single helmet, within a particular time period, is worn by a number of people.
  • the strap and head engaging pads must be adjustable. The most useful position of the strap is dependent on the configuration of the head, of the neck and the chin of the carrier.
  • additional accessories are not necessarily attached to the head engaging means of the helmet.
  • a head lamp, a throat microphone, protective glasses, facial and neck protection, ear piece, functional indications, etc. may be attached to the helmet.
  • helmets of different types It is convenient to wear a relatively light helmet for drills.
  • a similarly built light helmet is preferably worn.
  • a helmet which has at least one detachably secured part, which helmet can be used for military, business and sports purposes. It is a further object of this invention to provide a helmet which has detachable and replaceable head engaging means within the helmet so that different head engaging means may be employed by different helmet users so as to provide proper fit and hygienic conditions. It is a further object of this invention to provide a helmet to which additional accessories may be easily attached. It is another object of this invention to provide a helmet which affords different degrees of protection upon different assembly arrangements of the helmet so that the same general helmet assembly can be worn for all purposes including protective purposes. It is still an other object of this invention to provide a helmet which has a fastening channel which is positioned adjacent the edge of the helmet bowl, to which channel various accessories can be detachably secured.
  • FIGURE 1 is a perspective view, with parts broken away of the preferred embodiment of the helmet of this invention.
  • FIGURE 2 is an enlarged perspective view of a part of the helmet.
  • FIGURE 3 shows a partial section takenat right angles to the helmet axis.
  • FIGURE 4 is a section on line IV-IV in FIGURE 3.
  • FIGURE 5 is a section on line VV of FIGURE 3.
  • FIGURE 6. is a perspective view with parts broken away of a second embodiment of the helmet of this invention.
  • FIGURE 7 is a partial enlarged section taken along the rim of the helmet of FIGURE 6.
  • helmet bowl 1 is provided with a fastening channel 3 developed as a dovetail groove along its thickened lower edge 2.
  • Accessories which are made of elastic material, for example synthetic elastomeric, rubber or other flexible material are adapted to be snapped into and slidable along the groove.
  • the accessories may be directly mounted in the groove or on intermediate part 4.
  • Intermediate part 4 is preferably used and is inserted into the fastening channel 3.
  • One of the accessories 6 consists of a slide part 6a made of an elastic material, which is slidably mounted in the fastening channel, and upon which there is glued foam rubber support cushion 6b. Strap 8, see FIG. 5, is a part of the accessory 5.
  • Slide piece 5a has a central bore, in which the pin 5b of a fastening disc 50 is located so that pin 51) and disc 50 are maintained at such distance from one another, that the eye 7 of the strap 8 is held between pin and disc, and is freely turnable if so desired. Since the slides are slidable along the length of dovetail 3, it becomes possible to place accessories of any type, for example the support cushion or the chin strap, along the fastening channel 3 in any desired position.
  • Insert piece 4 similarly to the slide piece of the accessories '5 and 6, is provided with rib 9, see FIG. 2, standing out from its external side, which is slidably engageable within the fastening channel. Rib 9 is built, in
  • the projections will again stand out when in groove 3, thus filling out the profile of the groove 3, so that the insert piece is securely held. Should it be desirable to manufacture the insert pieces from a nonresilient material, then the fastening channel 3 would have to be interrupted by gaps, so that the insert pieces could be inserted and slid laterally into the groove.
  • intermediate piece 4 Due to the snap in arrangement of one or more intermediate pieces 4, accessories may be placed in the desired position radially of the fastening channel, as this becomes necessary. This may be particularly helpful for the support cushion, for the position of the cushion 6 is determined by the head shape of the wearer indicated by dotted lines in FIG. 3.
  • spacer piece 4 is provided with a groove 13, corresponding to the fastening channel, which can receive an additional intermediate piece or an accessory.
  • one or more may be used to adjust the distance of the accessory in question from the inner surface of the helmet bowl .1 to any requirements.
  • the intermediate pieces are provided with additional fastening grooves 14 at their upper and/ or lower sides, in which may be secured accessories, for example a throat microphone.
  • the helmet bowl 1 may also be provided with a fastening channel 15 along its external edge.
  • Fastening channel 15 can be used to fasten a decorative or visible strip 16, as shown on FIG. 1.
  • the strip 16 is fastened in groove 15 by being snapped in.
  • a head lamp equipped with corresponding fastening means can be alternatively secured in channel 15.
  • intermediate part 17 can be inserted in external groove 14.
  • Intermediate part 17 is provided with ribs 18 and 19, one on each side. These ribs are each similar to rib 9, for they have elastically deformable projections, as shown on intermediate part 4 in FIG. 2.
  • the external rib 19 serves to correspondingly fasten an external helmet bowl 20, which similar to the helmet bowl 1, now serving as internal helmet.
  • Helmet bowl 2G is provided with inner fastening channel 21 and outer fastening channel 22 along its lower edge. Outer channel 22 in outer helmet may serve for insertion of a visible strip, grade indication, a head lamp, etc.
  • the external helmet may ⁇ be designed for decorative or protective purposes. It may serve as parade helmet or as helmet for combat. Thus it is not necessary to have one drill helmet, one parade helmet and one combat helmet for each soldier. Furthermore, heat insulation is provided by the air cushion between internal helmet 2 and external helmet 20. Furthermore, one may do away with ventilation openings in the external helmet, so that the latter may be used as cooking and drinking utensil by soldiers in military operations.
  • FIGS. 6 and 7 differs from the preferred embodiment, in that the fastening channel in which the accessories are slidably secured is not directly formed in the helmet edge.
  • Two ring shaped depressions 23 are formed on the internal side of the helmet along the helmet edge.
  • Fastening channel 3a is formed on the inside ring shaped insert strip 24, which is made of an elastic material.
  • the strip has ring shaped protrusions 25 which enter into the depressions 23 in question due to the elasticity of the material.
  • Fastening channel 3a is identical to dovetail channel 3 and is formed as an undercut dovetail groove.
  • various parts such as intermediate parts 4 and accessories 5 and 6. They are slid-ably arranged so they can be moved to the position desired.
  • Helmet shell 2a similarly provided with external groove 14a for connection with an external helmet, in the same manner as described with respect to the embodiment of FIG. 4.
  • strip 24 is provided with elastic reinforcement band 26 which, on account of its elasticity, contributes to the securing of the strip 24 within the helmet edge 2.
  • Band 26 can be used, as shown in FIG 7, for fastening of any type of accessory for which there is no requirement as to adjustibility.
  • the fastening element of the chin strap 8a is indicated at 27 and is connected with the band 26 by rivet 28. Rivet 28 is positioned in recess 29 in strip 24. The recess extends through fastening channel 3a.
  • the channel carries accessory 6 with the slide part 6a and the support cushion 6b, but the recess is less than the length of the accessory.
  • strip 24 has shoulders 30 and 31 respectively on its upper and its lower edges. Shield 33 and neck protector 32 are respectively fastened to shoulders 30 and 31. Strip 24 and all of the accessories secured to it can thus be easily interchanged.
  • a helmet comprising a helmet bowl adapted to be positioned over a persons head, said helmet bowl having an edge, a fastening channel positioned adjacent to said edge of said helmet bowl, said channel having an opening to the surface of said helmet which is smaller than the interior of said channel, said channer having a uniform cross-sectional configuration, a plurality of head engaging means adapted to engage a persons head, said head engaging means each including a portion fitting within said channel so as to be detachably secured to said helmet bowl by said fastening channel, said head engaging means having resilient engagement means thereon, so that said head engaging means are capable of being snapped into said fastening channel.
  • a spacer strip is positioned intermediate said head engaging means and said fastening channel, said spacer strip comprising engaging means resiliently engaging said fastening channel and fastening channel means to which said head engaging means are detachably secured.
  • each of said engaging means has a male dovetail shape, said male dovetail shapes each having an angular face and a right angle face, said right angle faces having resilient projections extending therefrom for snap engagement into said fastening channel in said helmet.
  • said helmet bowl comprises an inner helmet bowl, a further fastening channel on said inner helmet bowl, securing means secured in said further fastening channel, an outer helmet bowl positioned exteriorly of said inner helmet bowl, said outer helmet bowl being secured to said inner helmet bowl by securement to said securing means, said outer bowl.

Description

'FeB.17, 1970 1 v H.1'EQIPELH0F 3,
HELMETv HAVING REMOVABLE SIZE ADJUSTING; MEANS Filed Oct. 28. 1966 5 Sheets-Sheet l lNl/ENTOR HERMANN EMPELHOF I EDWARD D. OER/AM ATTORNEY HELMET; HAVING REMOVABLE SIZE ADJUSTING; MEANS Filed Got. 2a; 1966 I Feb. 17,1970 H. TEMPELHOF 3 Sheets-Sheet 2 F N 2 W mg m mwmmwx m w WE 1 M 0 um /W\/ W W. E D. W flxw m. aw l 119 w A Wm fi M w m Y A B y m A a w Q 9 w a u q 5 E w H HAVING REMOVABLE SIZE ADJUSTING M EANS Filed Oct: 'z, 1966 H. TEMPELHOF Feb. 17, -1-97 0 3 Sheets-Sheet 5 PIE. 7 24 v 0 a) we u u t. as
F 0 My Wm ME TE a PBm Z. m 0A Ma YM mew E 5 Hum v United States Patent Ofifice 3,495,272 Patented Feb. 17, 1970 U.S. Cl. 23 4 Claims ABSTRACT OF THE DISCLOSURE This invention is directed to a helmet, and particularly a helmet which has a wide array of convenient interchangeabality, adjustability and utility. The helmet has a bowl and around the open edge of the bowl, the helmet is provided with a recess. Means adapted to fit the helmet to a particular head are engaged in this recess. Furthermore, such fitting means are movable along the length of the recess so that adjustment to a particular head is easily obtained. The fitting means includes such devices as chin straps and head pads. Furthermore, these fitting means are readily removed so that other persons can use the helmet, each person supplying his own fitting means, so that each helmet is personalized to the user.
BACKGROUND Helmets are well known in the art. The purpose of a helmet is to protect the head of the wearer. Helmets best accomplish this purpose when they have means that permit an accurate fit on the head of the wearer by the head engaging means of the helmet. Furthermore, a possibility must be afforded, due to hygienic reasons, to exchange or replace the head engaging means in a simple manner. This is particularly so in civil defense organizations where one single helmet, within a particular time period, is worn by a number of people.
Similarly to the other portions of the head engaging means, it is necessary that those accessories which are engaged on the head of the carrier can be individually adjusted. For example, the strap and head engaging pads must be adjustable. The most useful position of the strap is dependent on the configuration of the head, of the neck and the chin of the carrier.
A need also exists to provide adjustability of additional accessories with respect to the helmet. Such additional accessories are not necessarily attached to the head engaging means of the helmet. For example a head lamp, a throat microphone, protective glasses, facial and neck protection, ear piece, functional indications, etc., may be attached to the helmet. Furthermore, particularly in military use of helmets for drills, parades and in combat, there is a need to wear helmets of different types. It is convenient to wear a relatively light helmet for drills. At parades a similarly built light helmet is preferably worn. Combat puts completely different demands on the helmet and normally requires a different helmet. Obviously, it is inconvenient to provide a special helmet for each of these occasions and a need is present to adapt one helmet type in a simple manner to the various requirements by way of corresponding accessories.
DESCRIPTION Accordingly, it is an object of this invention to provide a helmet which has at least one detachably secured part, which helmet can be used for military, business and sports purposes. It is a further object of this invention to provide a helmet which has detachable and replaceable head engaging means within the helmet so that different head engaging means may be employed by different helmet users so as to provide proper fit and hygienic conditions. It is a further object of this invention to provide a helmet to which additional accessories may be easily attached. It is another object of this invention to provide a helmet which affords different degrees of protection upon different assembly arrangements of the helmet so that the same general helmet assembly can be worn for all purposes including protective purposes. It is still an other object of this invention to provide a helmet which has a fastening channel which is positioned adjacent the edge of the helmet bowl, to which channel various accessories can be detachably secured.
FIGURE 1 is a perspective view, with parts broken away of the preferred embodiment of the helmet of this invention.
FIGURE 2 is an enlarged perspective view of a part of the helmet.
FIGURE 3 shows a partial section takenat right angles to the helmet axis.
FIGURE 4 is a section on line IV-IV in FIGURE 3.
FIGURE 5 is a section on line VV of FIGURE 3.
FIGURE 6.is a perspective view with parts broken away of a second embodiment of the helmet of this invention.
FIGURE 7 is a partial enlarged section taken along the rim of the helmet of FIGURE 6.
In the embodiment shown in FIGURES 1 through 5, helmet bowl 1 is provided with a fastening channel 3 developed as a dovetail groove along its thickened lower edge 2. Accessories which are made of elastic material, for example synthetic elastomeric, rubber or other flexible material are adapted to be snapped into and slidable along the groove. The accessories may be directly mounted in the groove or on intermediate part 4. Intermediate part 4 is preferably used and is inserted into the fastening channel 3. One of the accessories 6 consists of a slide part 6a made of an elastic material, which is slidably mounted in the fastening channel, and upon which there is glued foam rubber support cushion 6b. Strap 8, see FIG. 5, is a part of the accessory 5. Slide piece 5a has a central bore, in which the pin 5b of a fastening disc 50 is located so that pin 51) and disc 50 are maintained at such distance from one another, that the eye 7 of the strap 8 is held between pin and disc, and is freely turnable if so desired. Since the slides are slidable along the length of dovetail 3, it becomes possible to place accessories of any type, for example the support cushion or the chin strap, along the fastening channel 3 in any desired position.
Insert piece 4, similarly to the slide piece of the accessories '5 and 6, is provided with rib 9, see FIG. 2, standing out from its external side, which is slidably engageable within the fastening channel. Rib 9 is built, in
order to permit the introduction of the rib into dovetail 3, with only one of its edges (in FIG. 2 the lower edge) corresponding to the groove shape of the fastening channel. The other edge apart from the projections is constituted by surface 11 formed at right angles to the bottom of the groove 3. Projections 10 protrude beyond surface 11 and fit into the undercut upper part of groove 3. The profile of the rib in the region of projections 10 corresponds to the profile of the fastening channel. Slit 12 is provided below each projection 10 so that the projections can be resiliently pressed down to the level of surface 11. The insert pieces are slid into the fastening channel in this position. Due to the elasticity of the material of the insert pieces, the projections will again stand out when in groove 3, thus filling out the profile of the groove 3, so that the insert piece is securely held. Should it be desirable to manufacture the insert pieces from a nonresilient material, then the fastening channel 3 would have to be interrupted by gaps, so that the insert pieces could be inserted and slid laterally into the groove.
Due to the snap in arrangement of one or more intermediate pieces 4, accessories may be placed in the desired position radially of the fastening channel, as this becomes necessary. This may be particularly helpful for the support cushion, for the position of the cushion 6 is determined by the head shape of the wearer indicated by dotted lines in FIG. 3. Such a use of intermediate piece 4 is shown to the left in FIG. 3 and in detail in FIG. 4. In order to accept accessories, spacer piece 4 is provided with a groove 13, corresponding to the fastening channel, which can receive an additional intermediate piece or an accessory. By virtue of this arrangement of intermediate pieces 4, one or more may be used to adjust the distance of the accessory in question from the inner surface of the helmet bowl .1 to any requirements. As shown in FIG. 4, the intermediate pieces are provided with additional fastening grooves 14 at their upper and/ or lower sides, in which may be secured accessories, for example a throat microphone.
As shown in FIG. 4, the helmet bowl 1 may also be provided with a fastening channel 15 along its external edge. Fastening channel 15 can be used to fasten a decorative or visible strip 16, as shown on FIG. 1. The strip 16 is fastened in groove 15 by being snapped in. Instead of strip 16 a functional indication or, if necessary, a head lamp equipped with corresponding fastening means can be alternatively secured in channel 15.
In addition, intermediate part 17 can be inserted in external groove 14. Intermediate part 17 is provided with ribs 18 and 19, one on each side. These ribs are each similar to rib 9, for they have elastically deformable projections, as shown on intermediate part 4 in FIG. 2. While the inner rib 18' of intermediate part 17 enters the external groove v16 of the helmet bowl 1, the external rib 19 serves to correspondingly fasten an external helmet bowl 20, which similar to the helmet bowl 1, now serving as internal helmet. Helmet bowl 2G is provided with inner fastening channel 21 and outer fastening channel 22 along its lower edge. Outer channel 22 in outer helmet may serve for insertion of a visible strip, grade indication, a head lamp, etc.
If the internal helmet bowl 1 is built as light drill helmet, then the external helmet may \be designed for decorative or protective purposes. It may serve as parade helmet or as helmet for combat. Thus it is not necessary to have one drill helmet, one parade helmet and one combat helmet for each soldier. Furthermore, heat insulation is provided by the air cushion between internal helmet 2 and external helmet 20. Furthermore, one may do away with ventilation openings in the external helmet, so that the latter may be used as cooking and drinking utensil by soldiers in military operations.
The embodiment shown in FIGS. 6 and 7 differs from the preferred embodiment, in that the fastening channel in which the accessories are slidably secured is not directly formed in the helmet edge. Two ring shaped depressions 23 are formed on the internal side of the helmet along the helmet edge. Fastening channel 3a is formed on the inside ring shaped insert strip 24, which is made of an elastic material. The strip has ring shaped protrusions 25 which enter into the depressions 23 in question due to the elasticity of the material. Fastening channel 3a is identical to dovetail channel 3 and is formed as an undercut dovetail groove. Into channel 3a can be inserted various parts such as intermediate parts 4 and accessories 5 and 6. They are slid-ably arranged so they can be moved to the position desired. Helmet shell 2a similarly provided with external groove 14a for connection with an external helmet, in the same manner as described with respect to the embodiment of FIG. 4.
In the alternative embodiment of FIG. 7, strip 24 is provided with elastic reinforcement band 26 which, on account of its elasticity, contributes to the securing of the strip 24 within the helmet edge 2.
Band 26 can be used, as shown in FIG 7, for fastening of any type of accessory for which there is no requirement as to adjustibility. The fastening element of the chin strap 8a is indicated at 27 and is connected with the band 26 by rivet 28. Rivet 28 is positioned in recess 29 in strip 24. The recess extends through fastening channel 3a. The channel carries accessory 6 with the slide part 6a and the support cushion 6b, but the recess is less than the length of the accessory.
Furthermore, strip 24 has shoulders 30 and 31 respectively on its upper and its lower edges. Shield 33 and neck protector 32 are respectively fastened to shoulders 30 and 31. Strip 24 and all of the accessories secured to it can thus be easily interchanged.
This invention having been described in its preferred embodiment, and an additional embodiment disclosed, it is clear that this invention is susceptible to numerous modifications and changes within the ability of those skilled in the art and without the exercise of the inventive faculty.
I claim:
1. A helmet, said helmet comprising a helmet bowl adapted to be positioned over a persons head, said helmet bowl having an edge, a fastening channel positioned adjacent to said edge of said helmet bowl, said channel having an opening to the surface of said helmet which is smaller than the interior of said channel, said channer having a uniform cross-sectional configuration, a plurality of head engaging means adapted to engage a persons head, said head engaging means each including a portion fitting within said channel so as to be detachably secured to said helmet bowl by said fastening channel, said head engaging means having resilient engagement means thereon, so that said head engaging means are capable of being snapped into said fastening channel.
2. The helmet of claim 1 wherein a spacer strip is positioned intermediate said head engaging means and said fastening channel, said spacer strip comprising engaging means resiliently engaging said fastening channel and fastening channel means to which said head engaging means are detachably secured.
3. The helmet of claim 2 wherein said cahnnel has a female dovetail shape and each of said engaging means has a male dovetail shape, said male dovetail shapes each having an angular face and a right angle face, said right angle faces having resilient projections extending therefrom for snap engagement into said fastening channel in said helmet.
4. The helmet of claim 1 wherein said helmet bowl comprises an inner helmet bowl, a further fastening channel on said inner helmet bowl, securing means secured in said further fastening channel, an outer helmet bowl positioned exteriorly of said inner helmet bowl, said outer helmet bowl being secured to said inner helmet bowl by securement to said securing means, said outer bowl.
6 helmet bowl being detachable from said inner helmet 3,087,165 4/1963 Cairns 2-3 3,110,900 11/1963 Crowdes 23 3,213,463 10/1965 Marchello 2-3 References cted 3,242,500 3/1966 Derr 2 3 UNITED STATES PATENTS 11 1922 MacLeod 2 1 1 4 5 JAMES R. BOLER, Primary Examiner 7/1948 Mattsson 2195 5/1924 Obermeyer 2181.2 XR CL 1/1962 Archbold 23 2181.4, 183, 195
US590427A 1965-11-18 1966-10-28 Helmet having removable size adjusting means Expired - Lifetime US3495272A (en)

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CH1589165A CH467591A (en) 1965-11-18 1965-11-18 helmet

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AT (1) AT286665B (en)
BE (1) BE688631A (en)
CH (1) CH467591A (en)
DE (1) DE1660749C3 (en)
DK (1) DK114378B (en)
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CH712885A1 (en) * 2016-09-07 2018-03-15 Allmendinger Thomas Device for improving the ventilation of headgear.
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US20190357620A1 (en) * 2005-06-17 2019-11-28 Gentex Corporation Mounting System for Accessories on a Safety Helmet
USD894494S1 (en) 2006-02-09 2020-08-25 Gentex Corporation Helmet
US10905187B1 (en) 2020-03-30 2021-02-02 Gwenventions, Llc Collapsible helmet
IT201900025081A1 (en) * 2019-12-20 2021-06-20 Dainese Spa PADDING FOR PROTECTIVE HELMET
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US3016541A (en) * 1959-07-01 1962-01-16 White Sewing Machine Corp Safety hat
US3087165A (en) * 1960-04-15 1963-04-30 Cairns & Brother Inc Headgear
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US4274157A (en) * 1978-02-21 1981-06-23 Boden Ogden W Hat or cap with adjustable band
US4290149A (en) * 1978-05-12 1981-09-22 Gentex Corporation Method of making an individually fitted helmet
US4231117A (en) * 1979-01-15 1980-11-04 Gentex Corporation Helmet assembly for accurately positioning visual display system
EP0126027A1 (en) * 1983-05-11 1984-11-21 Kiwi S.A. Plate for fastening of the chin strap to the protective helmet for motorcyclists, moped riders and other uses
US4675919A (en) * 1985-05-08 1987-06-30 Proper Manufacturing Co. Inc. Headband with cushion
EP0258552A1 (en) * 1986-09-02 1988-03-09 Marco Cianfanelli Integral helmet fitted with a chin piece which may be lifted by forward shifting and swinging movements
US4860465A (en) * 1988-01-04 1989-08-29 Brandt Claude R Snow grooming vehicle and attachments
US5365607A (en) * 1993-08-26 1994-11-22 Benevento Jr Vincenzo P Cap having evaporative cooling interior apparatus
US6012173A (en) * 1997-03-20 2000-01-11 Lee; Ben Gill-Ho Attachment for headgear to ventilate while clamping wearer's head
US5898950A (en) * 1997-11-26 1999-05-04 Sport Maska Inc. Protective helmet
US20040261158A1 (en) * 2003-06-30 2004-12-30 Larry Depew Communications device for a protective helmet
US7110743B2 (en) 2003-06-30 2006-09-19 Mine Safety Appliances Company Communications device for a protective helmet
US11672296B2 (en) 2005-06-17 2023-06-13 Gentex Corporation Hinged attachment of headgear to a helmet
US20190357620A1 (en) * 2005-06-17 2019-11-28 Gentex Corporation Mounting System for Accessories on a Safety Helmet
US11337478B2 (en) * 2005-06-17 2022-05-24 Gentex Corporation Mounting rail for attaching accessories to a safety helmet
US11246367B2 (en) * 2005-06-17 2022-02-15 Gentex Corporation Mounting system for accessories on a safety helmet
USD901082S1 (en) 2006-02-09 2020-11-03 Gentex Corporation Helmet
USD895211S1 (en) 2006-02-09 2020-09-01 Gentex Corporation Helmet
USD895212S1 (en) 2006-02-09 2020-09-01 Gentex Corporation Helmet
USD894494S1 (en) 2006-02-09 2020-08-25 Gentex Corporation Helmet
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US20100121238A1 (en) * 2007-03-01 2010-05-13 Alpinestars Research Srl Neck brace
US8162866B2 (en) 2007-03-01 2012-04-24 Alpinestars Research Srl Neck brace
US8162865B2 (en) 2007-03-01 2012-04-24 Alpinestars Research Srl Neck brace
WO2009109943A1 (en) * 2008-03-06 2009-09-11 Alpinestars Research Srl Adjustable neck protective collar in particular for motorcycle riders
US20100263112A1 (en) * 2008-03-06 2010-10-21 Alpinestars Research Srl Neck protective collar with safety breakable structure
US20100235973A1 (en) * 2008-03-06 2010-09-23 Alpinestrars Research Srl Adjustable neck protective collar in particular for motorcycle riders
US20100251468A1 (en) * 2008-03-06 2010-10-07 Alpinestars Research Srl Protective collar with fixing means to the user's body
US8291521B2 (en) 2008-03-06 2012-10-23 Alpinestars Research Srl Adjustable neck protective collar in particular for motorcycle riders
US8832871B2 (en) 2008-03-06 2014-09-16 Alpinestars Research Srl Neck protective collar with safety breakable structure
US20110041240A1 (en) * 2008-05-02 2011-02-24 Alpinestars Research Srl Protecting device for the neck
US8938820B2 (en) 2008-05-02 2015-01-27 Alpinestars Research Srl Protecting device for the neck
US20140371856A1 (en) * 2011-05-18 2014-12-18 Ulrich Gmbh & Co. Kg Prosthetic Intervertebral Disk
US10098750B2 (en) * 2011-05-18 2018-10-16 Ulrich Gmbh & Co. Kg Prosthetic intervertebral disk
EP2543270A1 (en) * 2011-07-08 2013-01-09 Arai Helmet Ltd Helmet
US9795180B2 (en) * 2013-09-27 2017-10-24 Bell Sports, Inc. System and method for coupling helmet components and liners
US20150089725A1 (en) * 2013-09-27 2015-04-02 Bell Sports, Inc. System and method for coupling helmet components and liners
CN105476152A (en) * 2015-11-23 2016-04-13 陈昊 Cycling helmet with throat microphone function
CH712885A1 (en) * 2016-09-07 2018-03-15 Allmendinger Thomas Device for improving the ventilation of headgear.
US11647804B2 (en) * 2017-06-29 2023-05-16 Bell Sports, Inc. Protective helmet with integrated rotational limiter
US10010126B1 (en) * 2017-06-29 2018-07-03 Bell Sports, Inc. Protective helmet with integrated rotational limiter
US20190000174A1 (en) * 2017-06-29 2019-01-03 Bell Sports, Inc. Protective helmet with integrated rotational limiter
US10834988B2 (en) * 2017-06-29 2020-11-17 Bell Sports, Inc. Protective helmet with integrated rotational limiter
US20230255296A1 (en) * 2017-06-29 2023-08-17 Bell Sports, Inc. Protective helmet with integrated rotational limiter
US10201208B1 (en) 2017-07-26 2019-02-12 Ronnie Z. Bochner Foldable helmet
IT201900025081A1 (en) * 2019-12-20 2021-06-20 Dainese Spa PADDING FOR PROTECTIVE HELMET
EP3838044A1 (en) * 2019-12-20 2021-06-23 Dainese S.p.A. Padding for a protective helmet
US10905187B1 (en) 2020-03-30 2021-02-02 Gwenventions, Llc Collapsible helmet
AU2021202596B2 (en) * 2020-04-30 2023-04-27 Draeger Safety Ag & Co. Kgaa Safety helmet with an intermediate piece for changing the center of gravity and arrangements comprising such a safety helmet and two alternative intermediate pieces

Also Published As

Publication number Publication date
DE1660749B2 (en) 1973-07-05
AT286665B (en) 1970-12-28
CH467591A (en) 1969-01-31
NL147626B (en) 1975-11-17
NL6614546A (en) 1967-05-19
DK114378B (en) 1969-06-23
DE1660749C3 (en) 1974-01-31
DE1660749A1 (en) 1972-04-20
JPS4831338B1 (en) 1973-09-28
IL26766A (en) 1970-08-19
SE314525B (en) 1969-09-08
BE688631A (en) 1967-03-31
GB1162402A (en) 1969-08-27

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