US4304009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy absorbing safety helmet
Assignee: C & D ACQUISITION CORP A CORP OF DE
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Filing: 1980-04-25
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Granted: 1981-12-08
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Expires: 2000-04-25
Abstract
Abstract A safety helmet (10) including an impact absorbing shell (12) and a number of energy absorbing strap retainers (34) is disclosed. A plurality of sockets (20) receive the retainers (34). The retainers (34) include a pair of flexible shock absorbing wings (46) which are designed to nest against lands (30). Upon the application of a blow to the helmet (10), the wings (46) flex and absorb a portion of the impact.
Inventors
- 👤 Lanny E. Nesbitt
- 👤 Mieczyslaw Saganowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/10; A42B3/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
In combination with a helmet, the helmet including an impact-resistant shell, a suspension harness made from a plurality of straps, the harness disposed within the shell, and a headband in registry with the harness, a shock absorbing suspension system, the system comprising a plurality of harness receiving sockets integrally formed within the shell, the sockets including an indentation formed within the shell, shell extensions partially protruding into the indentation and spaced away from the shell forming a recess between the shell and the extension, the upper portion of each extension forming a land bridging the recess between the shell and each extension, a number of strap retainers removably disposed within the sockets, the retainers having flexible means in registry with the lands formed within the sockets for absorbing and dissipating blows to the shell, means for temporarily affixing the headband to the strap retainers, and means for engaging the straps with the strap retainers.
Claim 2
Dependent Claim
154 words
In combination with a helmet, the helmet including an impact-resistant shell, a suspension harness made from a plurality of straps, the harness disposed within the shell, and a headband in registry with the harness, a shock absorbing suspension system, the system comprising a plurality of harness receiving sockets integrally formed within the shell, the sockets including an indentation formed within the shell, shell extensions partially protruding into the indentation and spaced away from the shell forming a recess between the shell and the extension, the upper portion of each extension forming a land bridging the recess between the shell and each extension, a number of strap retainers removably disposed within the sockets, the retainers having flexible means in registry with the lands formed within the sockets for absorbing and dissipating blows to the shell, means for temporarily affixing the headband to the strap retainers, and means for engaging the straps with the strap retainers.
Claim 3
Dependent Claim
59 words
The combination according to claim 1 wherein the strap retainers include a J-shaped structure, the longer section of the structure having an aperture and a plurality of means for removably attaching the headband to the retainers, and the shorter section of the structure having an aperture and a pair of slots forming a pair of shock absorbing flexible wings.
Claim 4
Dependent Claim
15 words
The combination according to claim 2 wherein the straps engage the retainer through the apertures.
Claim 5
Dependent Claim
30 words
The combination according to claim 2 wherein a nub is formed within the shell, the nub substantially disposed between the extensions, and the strip retainer including a nub receiving recess.
Claim 6
Dependent Claim
35 words
The combination according to claim 4 wherein the retainers are disposed within the sockets in such a manner that the nub projects into the nub receiving recess to securely engage the retainer to the socket.
Claim 7
Dependent Claim
22 words
The combination according to claim 2 wherein at least a portion of the flexible wings are in a registery with the lands.
Claim 8
Dependent Claim
23 words
The combination according to claim 6 wherein a flat surface is disposed on each wing, the flat surface in registry with the lands.
References Cited (Backward Citations)
US2853708A
Cited
FR1210925A
Cited
US3054111A
Cited
US3192536A
Cited
US3388405A
Cited
US3497873A
Cited
US3555560A
Cited
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Cited
US4106127A
Cited
US4055860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |