Patent US3173669A successfully refreshed from Google Patents.
Patent US3776570A successfully refreshed from Google Patents.
US3776570A
Expired / Lapsed
US
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Air bag for motor vehicles for the prevention of injuries in collisions
Assignee: Klippan GmbH Hamburg
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Filing: 1971-06-11
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Granted: 1973-12-04
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Expires: 1991-06-11
Abstract
Abstract An air bag for preventing injuries to the passengers of a motor vehicle having on the inner wall of the bag a coating of a substance adapted to generate a gas to inflate the air bag. The coating may be arranged in discrete sections and be fired by an electric ignition device. Additionally air intake openings may be provided, for sucking in air from the passenger compartment.
Inventors
- 👤 P Weman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:39
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/26; B60R21/264; B60R21/2644; B60R21/2646; F; F42; F42B; F42B3/00; F42B3/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
57 words
An air bag for motor vehicles for the prevention of injuries to passengers in collisions, said air bag comprising a plastic sheet provided with an inner wall having an explosible coating in communication therewith adapted to generate a gas to inflate said air bag, said explosible coating being distributed over a substantial portion of said inner wall.
Claim 2
Dependent Claim
57 words
An air bag for motor vehicles for the prevention of injuries to passengers in collisions, said air bag comprising a plastic sheet provided with an inner wall having an explosible coating in communication therewith adapted to generate a gas to inflate said air bag, said explosible coating being distributed over a substantial portion of said inner wall.
Claim 3
Dependent Claim
24 words
An air bag as recited in claim 1 wherein the coating is arranged in discrete sections on the inner wall of the air bag.
Claim 4
Dependent Claim
23 words
An air bag as recited in claim 2 wherein the air bag is provided with an electrical ignition device for igniting the coating.
Claim 5
Dependent Claim
18 words
An air bag as recited in claim 2 wherein the air bag is provided with air intake openings.
Claim 6
Dependent Claim
14 words
An air bag as recited in claim 4 wherein said coating is black powder.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |