US4964652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable restraint
Assignee: INFLATION SYSTEMS Inc
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Filing: 1989-06-26
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Granted: 1990-10-23
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Expires: 2009-06-26
Abstract
Abstract A system for venting excessively high pressure gas incident to deployment of an airbag comprising a diaphragm that is rupturable upon the occurrence of a threshold pressure internally of the airbag to instantaneously release said pressure.
Inventors
- 👤 James P. Karlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/276
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
An inflatable restraint for the occupant of a motor vehicle comprising an airbag module having a frangible cover member, an inflatable airbag disposed internally of said module and adapted to rupture the cover member thereof upon inflation of said airbag, a gas generator communicating with the interior of said airbag, a pressure relief channel communicating with the interior of said airbag and with the ambient environment externally of said module, and a rupturable diaphragm in said pressure relief channel normally positively separating the interior of said airbag from the ambient environment, said diaphragm being rupturable upon the occurrence of a predetermined threshold pressure in said airbag prior to full deployment thereof thereby to instantaneously relieve pressure in said airbag to preclude excessive deployment impact on said vehicle occupant.
Claim 2
Dependent Claim
128 words
An inflatable restraint for the occupant of a motor vehicle comprising an airbag module having a frangible cover member, an inflatable airbag disposed internally of said module and adapted to rupture the cover member thereof upon inflation of said airbag, a gas generator communicating with the interior of said airbag, a pressure relief channel communicating with the interior of said airbag and with the ambient environment externally of said module, and a rupturable diaphragm in said pressure relief channel normally positively separating the interior of said airbag from the ambient environment, said diaphragm being rupturable upon the occurrence of a predetermined threshold pressure in said airbag prior to full deployment thereof thereby to instantaneously relieve pressure in said airbag to preclude excessive deployment impact on said vehicle occupant.
References Cited (Backward Citations)
US3747953A
Cited
US4877264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |