US5387008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generant preload and tolerance takeup assembly for vehicular airbag installation
Assignee: Morton International LLC
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Filing: 1994-03-14
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Granted: 1995-02-07
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Expires: 2014-03-14
Abstract
Abstract An all-metal preload for the gas generant charge of a passenger-side vehicular airbag assembly includes a base member which lodges firmly in one end of the cylindrical filter. A contact member engages the end of the generant charge. Spring means are interposed between the base member and the contact member for maintaining a compressive force against the generant charge.
Inventors
- 👤 Donald R. Lauritzen
- 👤 Joseph L. Ralston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:52
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/264; B60R21/2644
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
133 words
In a gas generating assembly for a vehicular airbag system including a substantially hollow, cylindrical filter having a longitudinal central axis and first and second ends, a substantially cylindrical gas generant having first and second ends and retained within said filter substantially coaxial therewith, and a preload seated against the first end of said gas generant to apply a compressive force thereagainst, the improvement wherein said preload comprises: a metallic cup-shaped body having a sidewall seated securely within the first end of said filter and substantially coaxial therewith and a substantially circular base bounded by said sidewall; a metallic contact member engaging the first end of said gas generant; and metallic spring means intermediate said base and contact member for maintaining an axial compressive force against the first end of said gas generant.
Claim 2
Dependent Claim
133 words
In a gas generating assembly for a vehicular airbag system including a substantially hollow, cylindrical filter having a longitudinal central axis and first and second ends, a substantially cylindrical gas generant having first and second ends and retained within said filter substantially coaxial therewith, and a preload seated against the first end of said gas generant to apply a compressive force thereagainst, the improvement wherein said preload comprises: a metallic cup-shaped body having a sidewall seated securely within the first end of said filter and substantially coaxial therewith and a substantially circular base bounded by said sidewall; a metallic contact member engaging the first end of said gas generant; and metallic spring means intermediate said base and contact member for maintaining an axial compressive force against the first end of said gas generant.
Claim 3
Dependent Claim
12 words
The improvement of claim 1 wherein said contact member comprises a disc.
Claim 4
Dependent Claim
14 words
The improvement of claim 2 wherein said spring means comprises a finger spring washer.
Claim 5
Dependent Claim
24 words
The improvement of claim 2 wherein said preload additionally comprises means for maintaining said body, contact member, and spring means as a unitary assembly.
Claim 6
Dependent Claim
38 words
The improvement of claim 4 wherein said contact member comprises an annular disc defining an axial opening therethrough and said maintaining means comprises an axially slidable hub interconnecting said axial opening and the base of said cup-shaped body.
Claim 7
Dependent Claim
32 words
The improvement of claim 5 wherein said hub is a substantially cylindrical axial extension of the base of said cup member and is captured within the axial opening of the annular disc.
Claim 8
Dependent Claim
86 words
The improvement of claim 5 wherein the base of said cup-shaped body defines an axial opening therethrough and said hub comprises: a pin having a first end extending through the axial opening in the base of the cup-shaped body and a second end extending through the axial opening of the annular disc; an enlarged head on the first end of said pin to capture it within said base; and an enlarged head on the second end of said pin to capture it within said annular disc.
Claim 9
Dependent Claim
30 words
The improvement of claim 1 wherein said contact member comprises a raised central portion of the base of said cup-shaped body and said spring means comprises portions of said base.
Claim 10
Dependent Claim
32 words
The improvement of claim 8 wherein said base defines openings spaced circumferentially thereabout relative to said longitudinal central axis and said spring means comprise the base portions intermediate said radially spaced openings.
Claim 11
Dependent Claim
15 words
The improvement of claim 1 wherein said contact member and said spring means are unitary.
Claim 12
Dependent Claim
25 words
The improvement of claim 10 wherein said unitary contact member and spring means additionally comprise at least one retaining tine engageable with said cup-shaped body.
Claim 13
Dependent Claim
96 words
A preload for the gas generant of an automotive airbag installation, which generant has first and second ends and is housed within a cylindrical filter having first and second ends, which comprises: a metallic cup-shaped body having a sidewall seatable securely within the first end of said filter, substantially coaxial therewith, and a substantially circular base bounded by said sidewall; a metallic contact member engageable with the first end of said generant; and metallic spring means intermediate said base and contact member for maintaining an axial compressive force against the first end of said gas generant.
Claim 14
Dependent Claim
96 words
A preload for the gas generant of an automotive airbag installation, which generant has first and second ends and is housed within a cylindrical filter having first and second ends, which comprises: a metallic cup-shaped body having a sidewall seatable securely within the first end of said filter, substantially coaxial therewith, and a substantially circular base bounded by said sidewall; a metallic contact member engageable with the first end of said generant; and metallic spring means intermediate said base and contact member for maintaining an axial compressive force against the first end of said gas generant.
Claim 15
Dependent Claim
16 words
The preload of claim 12 wherein said cup-shaped body, contact member, and spring means are interconnected.
Claim 16
Dependent Claim
28 words
The preload of claim 13 wherein said body member includes an axial hub and said contact member and spring means are annular and slidably supported on said hub.
Claim 17
Dependent Claim
30 words
The preload of claim 13 wherein each of said body, contact member, and spring means is annular and they are interconnected by a rivet-like member extending through their central openings.
Claim 18
Dependent Claim
30 words
The preload of claim 13 wherein said contact member comprises a raised central portion of the base of said cup-shaped body and said spring means comprises portions of said base.
Claim 19
Dependent Claim
32 words
The preload of claim 16 wherein said base defines openings spaced radially thereabout relative to said longitudinal central axis and said spring means comprises the base portions intermediate said radially spaced openings.
Claim 20
Dependent Claim
15 words
The preload of claim 12 wherein said contact member and said spring means are unitary.
Claim 21
Dependent Claim
31 words
The preload of claim 18 wherein said spring means are leaf springs formed in said contact member and wherein said contact member additionally includes retaining tines engageable with said cup-shaped body.
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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) | 1998-02-06 | 1998-08-08 | 1999-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-06 | 2002-08-08 | 2003-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-06 | 2006-08-08 | 2007-02-07 | $7700.00 | Window Closed / Lapsed |