Patent CA1171202A successfully refreshed from Google Patents.
CA1171202A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Shock attenuation system for headgear
Assignee: Scott Technologies Inc
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Filing: 1981-04-16
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Granted: 1984-07-24
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Expires: 2001-04-16
Abstract
Abstract Abstract of the Disclosure A shock attenuation system for headgear having an outer protective shell, the system comprising a liner adapted to be secured to the internal surface of the shell, the liner comprising a series of tubes of elastomeric material extending with their axes generally parallel to the internal surface of the shell, and generally parallel to one another. Each tube is open at an end thereof and is elastically deformable under loads applied against the side of the tube, whereby, with the headgear worn by a wearer and upon application of an impact load to the headgear, the tubes in the area of impact deform elastically under the applied load and attenuate the shock upon the wearer from the applied load.
Inventors
- 👤 Hal D. Mitchell
- 👤 David C. Rust
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-25 19:05
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/12; A42B3/124
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
124 words
A shock attenuation system for headgear having an outer protective shell, said system comprising a liner adapted to be secured to the internal surface of the shell, said liner comprising a series of tubes of elastomeric mate-rial adapted to extend with their axes generally parallel to the internal surface of the shell, the tubes extending gener-ally parallel to one another, each of said tubes being open at an end thereof and elastically deformable under loads applied against the side of the tube, whereby, with the headgear worn by a wearer and upon application of an impact load to the headgear, the tubes in the area of impact deform elastically under the applied load and attenuate the shock upon the wearer from the applied load.
Claim 2
Dependent Claim
124 words
A shock attenuation system for headgear having an outer protective shell, said system comprising a liner adapted to be secured to the internal surface of the shell, said liner comprising a series of tubes of elastomeric mate-rial adapted to extend with their axes generally parallel to the internal surface of the shell, the tubes extending gener-ally parallel to one another, each of said tubes being open at an end thereof and elastically deformable under loads applied against the side of the tube, whereby, with the headgear worn by a wearer and upon application of an impact load to the headgear, the tubes in the area of impact deform elastically under the applied load and attenuate the shock upon the wearer from the applied load.
Claim 3
Dependent Claim
26 words
A shock attenuation system as set forth in claim 1 wherein the liner further comprises an inner layer of cushioning material engageable with the wearer's head.
Claim 4
Dependent Claim
22 words
A shock attenuation system as set forth in claim 2 wherein the layer of cushioning material is detachably secured to the tubes.
Claim 5
Dependent Claim
19 words
A shock attenuation system as set forth in claim 2 wherein the cushioning material is a foamed lastomeric mate-rial.
Claim 6
Dependent Claim
20 words
A shock attenuation system as set forth in claim 2 wherein the cushioning material is a foamed vinyl resin material.
Claim 7
Dependent Claim
20 words
A shock attenuation system as set forth in claim 1 wherein the tubes o the liner extend in side-by-side rela-tion.
Claim 8
Dependent Claim
22 words
A shock attenuation system as set forth in claim 6 wherein adjacent tubes of the liner are joined together at their sides.
Claim 9
Dependent Claim
25 words
A shock attenuation system as set forth in claim 6 wherein the tubes are laced together by lacing extending through the sides of the tubes.
Claim 10
Dependent Claim
25 words
A shock attenuation system as set forth in claim 1 wherein the liner further comprises a carrier sheet, said tubes being joined to said sheet.
Claim 11
Dependent Claim
26 words
A shock attenuation system as set forth in claim 1 wherein the liner further comprises means forming pockets at spaced intervals adapted to receive said tubes.
Claim 12
Dependent Claim
23 words
A shock attenuation system as set forth ;n claim 1 wherein the sides of the adjacent tubes of the liner are spaced apart.
Claim 13
Dependent Claim
26 words
A shock attenuation system as set forth in claim 1 wherein with the liner secured in the shell the axis of each tube extends generally vertically.
Claim 14
Dependent Claim
33 words
A shock attenuation system as set forth in claim 12 wherein the liner comprises a lower section, at the lower margin of the shell, and a separate upper section above the lower section.
Claim 15
Dependent Claim
25 words
A shock attenuation system as set forth in claim 1 wherein the liner is engageable with and conformable to the internal surface of the shell.
Claim 16
Dependent Claim
16 words
A shock attenuation system as set forth in claim 1 wherein the tubes are of polyurethane.
Claim 17
Dependent Claim
16 words
A shock attenuation system as set forth in claim 1 wherein the tubes are of polyethylene.
Claim 18
Dependent Claim
16 words
A shock attenuation system as set forth in claim 1 wherein the tubes are of polyarylate.
Claim 19
Dependent Claim
17 words
A shock attenuation system as set forth in claim 1 wherein the tubes are of synthetic rubber.
Claim 20
Dependent Claim
52 words
A shock attenuation system as set forth in claim 1 wherein said tubes are adapted for communication with the interior of the headgear whereby when the tubes are deformed during an impact air is adapted to flow out of the tubes and into the interior of the shell for ventilating the headgear.
References Cited (Backward Citations)
No citation records indexed.
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