US3777772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flap opening inflator seal arrangement
Assignee: Motors Liquidation Co
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Filing: 1972-09-11
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Granted: 1973-12-11
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Expires: 1992-09-11
Abstract
Abstract An inflator for a vehicle inflatable occupant restraint cushion includes an outlet having a generally cylindrical bore and a radial end wall, with the edge of the bore adjacent the end wall being chamfered to provide a radially angular juncture wall. A domed seal includes a flange seating on the end wall and secured thereto. The dome of the seal projects within the bore and closes the opening of the bore. The flange overlies the angular juncture wall and defines therewith a continuous circumferential recess of angular cross section. A discontinuous groove in the flange opens to the recess. A flexible shaped charge coterminous in extent with the groove fits within the recess. When the charge is fired, the dome separates from the flange along the groove and is swung relative to the flange by the flow of pressure fluid through the bore of the inflator.
Inventors
- 👤 T Arnold
- 👤 R Plumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:35
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/268; F; F16; F16K; F16K17/00; F16K17/40; F16K17/403; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/1692
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
176 words
The combination comprising, an inflator providing a source of pressure fluid and having an outlet including a generally annular inner wall joined by a radially angular juncture wall with a radial end wall, a seal having a peripheral flange seating on the end wall and integrally joined to a center portion by a juncture wall portion provided with a discontinuous groove, the center portion closing the opening of the inner wall of the outlet and the juncture wall portion and juncture wall of the outlet cooperatively defining a circumferentially continuous recess, means securing the seal to the outlet, and a flexible shaped charge located within the recess and being generally coterminous with the groove, the charge and groove cooperatively severing the center portion of the seal from the seal flange along the discontinuous groove, the ungrooved juncture wall portion of the seal providing an integral hinge swingably securing the center portion to the flange for movement relative theReto under the pressure of fluid released from the inflator and flowing through the inner wall of the outlet.
Claim 2
Dependent Claim
176 words
The combination comprising, an inflator providing a source of pressure fluid and having an outlet including a generally annular inner wall joined by a radially angular juncture wall with a radial end wall, a seal having a peripheral flange seating on the end wall and integrally joined to a center portion by a juncture wall portion provided with a discontinuous groove, the center portion closing the opening of the inner wall of the outlet and the juncture wall portion and juncture wall of the outlet cooperatively defining a circumferentially continuous recess, means securing the seal to the outlet, and a flexible shaped charge located within the recess and being generally coterminous with the groove, the charge and groove cooperatively severing the center portion of the seal from the seal flange along the discontinuous groove, the ungrooved juncture wall portion of the seal providing an integral hinge swingably securing the center portion to the flange for movement relative theReto under the pressure of fluid released from the inflator and flowing through the inner wall of the outlet.
Claim 3
Dependent Claim
176 words
The combination comprising, an inflator providing a source of pressure fluid and having an outlet including a generally cylindrical bore joined by a radially angular juncture wall with a radial end wall, a seal having a radial flange seating on the radial end wall and integrally joined to a center dome closing the opening of the inner wall of the outlet, the seal flange including a discontinuous groove adjacent the dome and overlying the juncture wall of the outlet to cooperatively define therewith a circumferentially continuous recess, the groove opening to the recess, means securing the seal flange to the outlet, and a flexible shaped charge located within the recess and being generally coterminous with the extent of the groove, the charge and groove cooperatively severing the seal dome from the seal flange along the discontinuous groove, the ungrooved portion of the seal flange providing an integral hinge swingably securing the dome to the flange for movement relative thereto under the pressure of fluid released from the inflator and flowing through the bore of the outlet.
Claim 4
Dependent Claim
176 words
The combination comprising, an inflator providing a source of pressure fluid and having an outlet including a generally cylindrical bore joined by a radially angular juncture wall with a radial end wall, a seal having a radial flange seating on the radial end wall and integrally joined to a center dome closing the opening of the inner wall of the outlet, the seal flange including a discontinuous groove adjacent the dome and overlying the juncture wall of the outlet to cooperatively define therewith a circumferentially continuous recess, the groove opening to the recess, means securing the seal flange to the outlet, and a flexible shaped charge located within the recess and being generally coterminous with the extent of the groove, the charge and groove cooperatively severing the seal dome from the seal flange along the discontinuous groove, the ungrooved portion of the seal flange providing an integral hinge swingably securing the dome to the flange for movement relative thereto under the pressure of fluid released from the inflator and flowing through the bore of the outlet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |