Patent US4152891A successfully refreshed from Google Patents.
US4152891A
Expired / Lapsed
US
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Pyrotechnic composition and method of inflating an inflatable automobile safety restraint
Assignee: Honeywell International Inc
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Filing: 1977-10-11
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Granted: 1979-05-08
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Expires: 1997-10-11
Abstract
Abstract A pyrotechnic composition comprising: About 15 to 30% by weight of tartaric acid; About 40 to 75% by weight of sodium chlorate; and About 10 to 30% by weight of calcium hydroxide. The invention also relates to a method of inflating an inflatable automobile safety restraint comprising the step of substantially completely inflating the restraint with the gaseous composition products of combustion of a composition comprising: About 15 to 30% by weight of tartaric acid; About 40 to 75% by weight of sodium chlorate; and About 10 to 30% by weight of calcium hydroxide.
Inventors
- 👤 Eugene F. Garner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:06
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06; C01; C01B; C01B13/00; C01B13/02; C01B13/0203; C01B13/0218; C06B; C06B29/00; C06B29/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
35 words
A pyrotechnic composition comprising: from about 15 to 30% by weight of tartaric acid; from about 40 to 75% by weight of sodium chlorate; and from about 10 to 30% by weight of calcium hydroxide.
Claim 2
Dependent Claim
35 words
A pyrotechnic composition comprising: from about 15 to 30% by weight of tartaric acid; from about 40 to 75% by weight of sodium chlorate; and from about 10 to 30% by weight of calcium hydroxide.
Claim 3
Dependent Claim
40 words
The composition of claim 1 wherein said composition comprises: from about 20 to 25% by weight of tartaric acid; from about 50 to 60% by weight of sodium chlorate; and from about 15 to 20% by weight of calcium hydroxide.
Claim 4
Dependent Claim
20 words
The pyrotechnic composition of claim 2 wherein said composition further includes about 0.01 to 0.5% by weight of a pigment.
Claim 5
Dependent Claim
11 words
The composition of claim 3 wherein said pigment is carbon black.
Claim 6
Dependent Claim
21 words
The composition of claim 4 wherein said carbon black is present in an amount of about 0.05 to 0.15% by weight.
Claim 7
Independent Claim
57 words
A method of inflating an inflatable automobile safety restraint comprising the step of substantially completely inflating the restraint with the gaseous composition products of combustion of a composition comprising: about 15 to 30% by weight of tartaric acid; about 40 to 75% by weight of sodium chlorate; and about 10 to 30% by weight of calcium hydroxide.
Claim 8
Independent Claim
57 words
A method of inflating an inflatable automobile safety restraint comprising the step of substantially completely inflating the restraint with the gaseous composition products of combustion of a composition comprising: about 15 to 30% by weight of tartaric acid; about 40 to 75% by weight of sodium chlorate; and about 10 to 30% by weight of calcium hydroxide.
Claim 9
Dependent Claim
37 words
The method of claim 6 wherein said composition comprises about 20 to 25% by weight of tartaric acid; about 50 to 60% by weight of sodium chlorate; and about 15 to 20% by weight of calcium hydroxide.
Claim 10
Dependent Claim
20 words
The method of claim 7 wherein said composition further includes from about 0.01 to 0.05% by weight of a pigment.
Claim 11
Dependent Claim
11 words
The method of claim 8 wherein said pigment is carbon black.
Claim 12
Dependent Claim
21 words
The method of claim 9 wherein said carbon black is present in an amount of about 0.5 to 0.15% by weight.
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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |