Patent US4390380A successfully refreshed from Google Patents.
US4390380A
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US
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Coated azide gas generating composition
Assignee: Individual
•
Filing: 1982-04-21
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Granted: 1983-06-28
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Expires: 2002-04-21
Abstract
Abstract An improved gas generating composition for generating nitrogen gas made by coating pellets of a pyrotechnic alkali metal azide composition with an energetic lacquer coating.
Inventors
- 👤 Albert T. Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:43
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/04; C06B; C06B45/00; C06B45/18; C06B45/30; C06B45/32; C06B45/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
36 words
A gas generating composition for use in inflating automobile crash bags comprising a mixture, in pellet form, of an alkali metal azide and an oxidant, each pellet coated with a lacquer comprising pentaerythritol trinitrate acrylate polymer.
Claim 2
Dependent Claim
36 words
A gas generating composition for use in inflating automobile crash bags comprising a mixture, in pellet form, of an alkali metal azide and an oxidant, each pellet coated with a lacquer comprising pentaerythritol trinitrate acrylate polymer.
Claim 3
Dependent Claim
61 words
The gas generating composition of claim 1 wherein said alkali metal azide is selected from the group consisting of sodium azide, potassium azide and lithium azide or mixtures thereof and wherein said oxidant is selected from the group consisting of potassium perchlorate, strontium nitrate, ammonium perchlorate, chromic chloride, ferric chloride, cobaltic chloride, cupric oxide, ferric oxide, molybdic oxide, or mixtures thereof.
Claim 4
Dependent Claim
21 words
The gas generating composition of claim 1 wherein said alkali metal azide is sodium azide and said oxidant is potassium perchlorate.
Claim 5
Dependent Claim
37 words
The gas generating composition of claim 1 wherein the alkali metal azide comprises about 50 to 90%, the oxidant comprises about 8 to 48%, and the dried lacquer about 2 to 42% by weight of the composition.
Claim 6
Dependent Claim
15 words
The gas generating composition of claim 1 wherein said lacquer is water and acid resistant.
References Cited (Backward Citations)
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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) | 1986-06-27 | 1986-12-27 | 1987-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-27 | 1990-12-27 | 1991-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-27 | 1994-12-27 | 1995-06-28 | $7700.00 | Window Closed / Lapsed |