Patent US5324075A successfully refreshed from Google Patents.
US5324075A
Expired / Lapsed
US
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Gas generator for vehicle occupant restraint
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1993-02-02
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Granted: 1994-06-28
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Expires: 2013-02-02
Abstract
Abstract A vehicle occupant restraint assembly comprises a vehicle occupant restraint (20), a housing (14), gas generating material (16) within the housing, an igniter (18) for the gas generating material, and gas flow means (22) for directing gas from the housing to the vehicle occupant restraint. The gas generating material comprises ammonium dinitramide having the formula: ##STR1##
Inventors
- 👤 William P. Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:27
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/264; B60R21/2644; C; C06; C06B; C06B31/00; C06D; C06D5/00; C06D5/04; C06D5/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
50 words
A vehicle occupant restraint assembly comprising: a vehicle occupant restraint; a housing; gas generating material within the housing; an igniter for the gas generating material; gas flow means for directing gas from said housing to said vehicle occupant restraint, said gas generating material comprising ammonium dinitramide, having the formula: ##STR5##
Claim 2
Dependent Claim
50 words
A vehicle occupant restraint assembly comprising: a vehicle occupant restraint; a housing; gas generating material within the housing; an igniter for the gas generating material; gas flow means for directing gas from said housing to said vehicle occupant restraint, said gas generating material comprising ammonium dinitramide, having the formula: ##STR5##
Claim 3
Dependent Claim
17 words
The vehicle occupant restraint assembly of claim 1 wherein said vehicle occupant restraint is an air bag.
Claim 4
Dependent Claim
21 words
The vehicle occupant restraint assembly of claim 1 wherein said housing and said gas flow means are free of a filter.
Claim 5
Dependent Claim
16 words
The vehicle occupant restraint assembly of claim 3 wherein said gas flow means comprises cooling surfaces.
Claim 6
Dependent Claim
17 words
The vehicle occupant restraint assembly of claim 4 wherein said cooling surfaces are layers of mesh screens.
Claim 7
Dependent Claim
31 words
The vehicle occupant restraint assembly of claim 1 wherein said gas generating material comprises a combustible hydrocarbon binder, the amount of said binder producing, on combustion, non-toxic amounts of carbon oxides.
Claim 8
Dependent Claim
40 words
The vehicle occupant restraint assembly of claim 1 wherein said gas generating material comprises a small amount of an alkali metal azide, the amount of alkali metal azide producing, on combustion, molten solids in amounts less than amounts requiring filtration.
Claim 9
Dependent Claim
34 words
The vehicle occupant restraint system of claim 1 wherein said gas generating material comprises a small amount of a carbon containing fuel, the amount of fuel producing, on combustion, non-toxic amounts of carbon oxides.
Claim 10
Dependent Claim
38 words
The vehicle occupant restraint assembly of claim 1 wherein said gas generating material comprises small amounts of an elemental metal fuel, the amount of metal fuel producing, on combustion, molten solids in amounts less than amounts requiring filtration.
Claim 11
Dependent Claim
18 words
The vehicle occupant restraint assembly of claim 1 wherein said gas generating material comprises small amounts of coolants.
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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) | 1997-06-27 | 1997-12-27 | 1998-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-27 | 2001-12-27 | 2002-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-27 | 2005-12-27 | 2006-06-28 | $7700.00 | Window Closed / Lapsed |