US3787074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple pyro system
Assignee: Honeywell International Inc
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Filing: 1971-05-28
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Granted: 1974-01-22
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Expires: 1991-05-28
Abstract
Abstract This invention relates to the procedure of redundancy, without operational compromise, in the supply of generated gas from a pyrotechnic device to an inflatible bag assembly.
Inventors
- 👤 D Lewis
- 👤 R Stephenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:18
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/203; B60R21/2035
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
139 words
An inflatable assembly comprising a plurality of symmetrically disposed discrete pyrotechnic gas producers mounted in an enclosed housing; a plurality of ignitors for igniting said producers, each of said ignitors directly associated with separate ones of said producers; a passageway devoid of gas producer directly connecting said producers to ensure ignition of all of said producers in the event that less than all said ignitors fail to function; a manifold mounted in said assembly; a single outlet interconnecting said housing and said manifold said outlet disposed in said passageway centrally of said symetrically disposed producers; a removable plug normally covering said outlet, said plug removed as a result of increased pressure communicated to it through said passageway by the build-up of gas derived from said gas producers; and an inflatable unit disposed about and in communication with said manifold.
Claim 2
Dependent Claim
139 words
An inflatable assembly comprising a plurality of symmetrically disposed discrete pyrotechnic gas producers mounted in an enclosed housing; a plurality of ignitors for igniting said producers, each of said ignitors directly associated with separate ones of said producers; a passageway devoid of gas producer directly connecting said producers to ensure ignition of all of said producers in the event that less than all said ignitors fail to function; a manifold mounted in said assembly; a single outlet interconnecting said housing and said manifold said outlet disposed in said passageway centrally of said symetrically disposed producers; a removable plug normally covering said outlet, said plug removed as a result of increased pressure communicated to it through said passageway by the build-up of gas derived from said gas producers; and an inflatable unit disposed about and in communication with said manifold.
Claim 3
Dependent Claim
30 words
An assembly, in accordance with claim 10, wherein said manifold is provided with a deflecting rib opposite said removable plug in said passageway to diffuse said gas in said manifold.
Claim 4
Dependent Claim
29 words
An assembly, in accordance with claim 10, wherein only two of said pyrotechnic gas producers ar provided and said assembly is disposed on the steering wheel of a vehicle.
References Cited (Backward Citations)
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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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |