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Patent US5542999A successfully refreshed from Google Patents.
US5542999A
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Gas-generating mixture
Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
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Filing: 1995-01-17
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Granted: 1996-08-06
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Expires: 2015-01-17
Abstract
Abstract A gas-generating mixture for rescue and air bag systems, as well as for ret and tubular weapon drive systems comprises high nitrogen, low carbon fuels GZT, TAGN, NG or NTO, the cold and fast burning oxidizer Cu(NO 3 ) 2 *3Cu(OH) 2 and a catalyst for reducing pollutant gases, accelerating the reaction and cooling formed by a pyrophoric metal or a pyrophoric alloy on a carrier.
Inventors
- 👤 Klaus M. Bucerius
- 👤 Helmut Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:30
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007; C06D; C06D5/00; C06D5/06
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
36 words
A gas-generating mixture comprising a fuel, an oxidizer, a catalyst and a coolant, wherein the oxidizer is Cu(NO 3 ) 2 *3Cu(OH) 2 and the catalyst comprises a metal or a metal alloy on a carrier.
Claim 2
Dependent Claim
36 words
A gas-generating mixture comprising a fuel, an oxidizer, a catalyst and a coolant, wherein the oxidizer is Cu(NO 3 ) 2 *3Cu(OH) 2 and the catalyst comprises a metal or a metal alloy on a carrier.
Claim 3
Dependent Claim
21 words
A mixture according to claim 1, wherein the catalyst is a pyrophoric metal or a pyrophoric metal alloy on a carrier.
Claim 4
Dependent Claim
16 words
A mixture according to claim 1, wherein the carrier for the metallic catalyst is a silicate.
Claim 5
Dependent Claim
22 words
Mixture according to claim 3, characterized in that pyrophoric silver on a schist or framework silicate carrier is used as the catalyst.
Claim 6
Dependent Claim
22 words
A mixture according to claim 1, wherein TAGN (triaminoguanidine nitrate), NG (nitroguanidine), NTO (3-nitro-1,2,3-triazol-5-one) or GZT (diguanidinium-5,5'-azotetrazolate) is used as the fuel.
Claim 7
Dependent Claim
29 words
A mixture according to claim 1 comprising a mixture of GZT and Cu(NO 3 ) 2 *3Cu(OH) 2 with compensated oxygen balance and up to 30 wt. % catalyst.
Claim 8
Dependent Claim
17 words
A mixture according to claim 1, wherein the catalyst has an average particle size of <10 μm.
Claim 9
Dependent Claim
15 words
A mixture according to claim 1, wherein the coolant comprises Fe 2 O 3 .
Claim 10
Dependent Claim
16 words
A mixture according to claim 2, wherein the carrier for the metallic catalyst is a silicate.
Claim 11
Dependent Claim
20 words
A mixture according to claim 1, wherein the carrier for the metallic catalyst is a schist or a framework silicate.
Claim 12
Dependent Claim
20 words
A mixture according to claim 2, wherein the carrier for the metallic catalyst is a schist or a framework silicate.
Claim 13
Dependent Claim
17 words
A mixture according to claim 6, wherein the catalyst has an average particle size of 10 μm.
Claim 14
Dependent Claim
15 words
A mixture according to claim 5, wherein the coolant comprises Fe 2 O 3 .
Claim 15
Dependent Claim
15 words
A mixture according to claim 6, wherein the coolant comprises Fe 2 O 3 .
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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) | 1999-08-06 | 2000-02-05 | 2000-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-06 | 2004-02-05 | 2004-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-06 | 2008-02-05 | 2008-08-06 | $7700.00 | Window Closed / Lapsed |