US4038700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety helmets for motorcyclists or the like
Assignee: Individual
•
Filing: 1976-06-11
•
Granted: 1977-08-02
•
Expires: 1996-06-11
Abstract
Abstract A safety helmet for motorcyclists or the like including a hard shell having a lining of flexible material behind which are disposed a plurality of air cushions interconnected by means of tubes provided with pressure equalization delay devices to provide a yielding engagement by the lining with the enclosed parts of the face and skull together with air-foil-like projections on the outer surface of the shell acted upon by an airstream to reduce the weight of the helmet.
Inventors
- 👤 Kalman Gyory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:44
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/0406; A42B3/0473; A42B3/0493; A42B3/10; A42B3/12; A42B3/121; A42B3/122
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
A safety helmet for enclosing the entire head and extending below the chin of a motorcyclist of the type having a hard outer shell with a semi-hardened foam lining and having a viewing aperature in the front thereof, comprising a plurality of inflatable interconnected air cushions arranged interior to said helmet such that a first cushion protects the neck, a second and third cushion protect the cheeks and a fourth cushion protects the top of the cranium, and wherein interconnecting of said cushions is achieved by air conduits each having located therein a pressure drop delay means whereby upon rupturing one of said air cushions a rapid release of inflation of all air cushions is prevented.
Claim 2
Dependent Claim
116 words
A safety helmet for enclosing the entire head and extending below the chin of a motorcyclist of the type having a hard outer shell with a semi-hardened foam lining and having a viewing aperature in the front thereof, comprising a plurality of inflatable interconnected air cushions arranged interior to said helmet such that a first cushion protects the neck, a second and third cushion protect the cheeks and a fourth cushion protects the top of the cranium, and wherein interconnecting of said cushions is achieved by air conduits each having located therein a pressure drop delay means whereby upon rupturing one of said air cushions a rapid release of inflation of all air cushions is prevented.
Claim 3
Dependent Claim
22 words
The helmet of claim 1 wherein said pressure drop delay means comprises a plug formed of plastic foam having substantially open pores.
Claim 4
Dependent Claim
37 words
The helmet of claim 1 further comprising a valve means communicating with said plurality of inflatable air cushions for regulating the air pressure in said cushions and for releasing all air pressure upon opening said valve means.
References Cited (Backward Citations)
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Cited
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Cited
US3616463A
Cited
US3761959A
Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |