Patent US4928991A successfully refreshed from Google Patents.
US4928991A
Expired / Lapsed
US
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Aspirating inflator assembly
Assignee: Automotive Systems Laboratory Inc
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Filing: 1989-03-08
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Granted: 1990-05-29
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Expires: 2009-03-08
Abstract
Abstract An aspirating inflator assembly for a vehicle occupant restraint system comprises a housing having spaced sidewalls, a back wall and an openable front wall. An airbag is stored internally of the housing. Multiple gas generators are supported on or adjacent to the back wall of the housing. The housing has a plurality of apertures in the sidewalls thereof that are normally closed by valves which are openable to aspirate ambient air into the housing but preclude exhaust of air outwardly of the housing.
Inventors
- 👤 William F. Thorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:20
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/30; G; G02; G02B; G02B3/00; G02B3/02; G02B3/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
An aspirating inflator assembly for a vehicle occupant restraint system comprising, a housing defined by spaced sidewalls, a back wall and an openable front panel, an airbag attached to and stored internally of said housing, a plurality of gas generators supported adjacent to the back wall of said housing, a plurality of apertures in at least one sidewall of said housing, and a valve on said housing for admitting ambient air thereinto through said apertures but precluding exhaust of air outwardly of said housing, the frontal panel on said housing being openable upon energization of said gas generator to facilitate deployment of said airbag.
Claim 2
Dependent Claim
104 words
An aspirating inflator assembly for a vehicle occupant restraint system comprising, a housing defined by spaced sidewalls, a back wall and an openable front panel, an airbag attached to and stored internally of said housing, a plurality of gas generators supported adjacent to the back wall of said housing, a plurality of apertures in at least one sidewall of said housing, and a valve on said housing for admitting ambient air thereinto through said apertures but precluding exhaust of air outwardly of said housing, the frontal panel on said housing being openable upon energization of said gas generator to facilitate deployment of said airbag.
Claim 3
Dependent Claim
17 words
An inflator assembly in accordance with claim 1 wherein said airbag is stored adjacent said front panel.
Claim 4
Dependent Claim
20 words
An inflator assembly in accordance with claim 1 wherein said apertures are disposed adjacent the back wall of said housing.
Claim 5
Dependent Claim
20 words
An inflator assembly in accordance with claim 1 wherein said cartridges are cantilevered from the back wall of said housing.
Claim 6
Dependent Claim
21 words
An inflator assembly in accordance with claim 1 wherein the sidewalls of said housing are imperforate adjacent the front wall thereof.
Claim 7
Dependent Claim
20 words
An inflator assembly in accordance with claim 1 wherein each gas generator assembly is equipped with an individual electric igniter.
Claim 8
Dependent Claim
19 words
An inflator assembly in accordance with claim 6 wherein said igniters are electrically connected in a common electrical circuit.
Claim 9
Dependent Claim
21 words
An inflator assembly in accordance with claim 7 wherein the common circuit for said gas generators comprises a printed circuit board.
Claim 10
Dependent Claim
15 words
An inflator assembly in accordance with claim 1 wherein said valve comprises a flapper-type valve.
Claim 11
Dependent Claim
30 words
An inflator assembly in accordance with claim 9 wherein said flapper valve is hinged at a frontal extremity thereof to enhance closing upon the occurrence of an air flow reversal.
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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) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |