US4865667A
Expired / Lapsed
US
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Gas-generating composition
Assignee: Bayern Chemie Gesellschaft fuer Flugchemische Antriebe mbH
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Filing: 1988-09-30
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Granted: 1989-09-12
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Expires: 2008-09-30
Abstract
Abstract A nitrogen-generating composition useful for inflating air bags to protection for occupants of motor vehicles is disclosed which is composed of a stable nitride resistant to high temperatures and an inorganic oxidizing agent.
Inventors
- 👤 Siegfried Zeuner
- 👤 Walter Holzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:00
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
71 words
A gas-generating composition useful for inflating air bags as protection for occupants of motor vehicles comprising fuel which is at least one nitride selected from a member of the group consisting of boron nitride, aluminum nitride, silicon nitride, a transition metal nitride or a mixture thereof and an inorganic oxidizing agent, wherein nitrogen is formed exclusively as the inflating gas when said fuel is oxidized by means of said oxidizing agent.
Claim 2
Dependent Claim
71 words
A gas-generating composition useful for inflating air bags as protection for occupants of motor vehicles comprising fuel which is at least one nitride selected from a member of the group consisting of boron nitride, aluminum nitride, silicon nitride, a transition metal nitride or a mixture thereof and an inorganic oxidizing agent, wherein nitrogen is formed exclusively as the inflating gas when said fuel is oxidized by means of said oxidizing agent.
Claim 3
Dependent Claim
39 words
The gas-generating composition of claim 1 wherein the transition metal nitride is selected from a member of the group consisting of titanium nitride, zirconium nitride, hafnium nitride, vanadium nitride, niobium nitride, tantalum nitride, chromium nitride and a mixture thereof.
Claim 4
Dependent Claim
23 words
The gas-generating composition of claim 1 which additionally contains an ignition aid comprised of a mixture of metal powder and an oxidizing agent.
Claim 5
Dependent Claim
20 words
The gas-generating composition of claim 1, wherein the nitride and the inorganic oxidizing agent are present in about stoichiometric proportions.
Claim 6
Dependent Claim
15 words
The gas-generating composition of claim wherein the fuel is comprised of a mixture of nitrides.
Claim 7
Dependent Claim
13 words
The gas-generating composition of claim 1, wherein the oxidizing agent is potassium nitrate.
Claim 8
Dependent Claim
93 words
A gas-generating composition useful for inflating air bags as protection for occupants of motor vehicles comprising fuel and an inorganic oxidizing agent, wherein the fuel consists of at least one nitride selected from a member of the group consisting of boron nitride, aluminum nitride, silicon nitride, a transition metal nitride and a mixture thereof or at least one of said nitrides and an ignition aid of metal powder in combination with an oxidizing agent, wherein nitrogen is formed exclusively as the propellant when said fuel is oxidized by means of said oxidizing agent.
Claim 9
Dependent Claim
93 words
A gas-generating composition useful for inflating air bags as protection for occupants of motor vehicles comprising fuel and an inorganic oxidizing agent, wherein the fuel consists of at least one nitride selected from a member of the group consisting of boron nitride, aluminum nitride, silicon nitride, a transition metal nitride and a mixture thereof or at least one of said nitrides and an ignition aid of metal powder in combination with an oxidizing agent, wherein nitrogen is formed exclusively as the propellant when said fuel is oxidized by means of said oxidizing agent.
Claim 10
Dependent Claim
20 words
The gas-generating composition of claim 7, wherein the nitride and the inorganic oxidizing agent are present in about stoichiometric proportions.
Claim 11
Dependent Claim
14 words
The gas-generating composition of claim 7 wherein the fuel contains a mixture of nitrides.
Claim 12
Dependent Claim
13 words
The gas-generating composition of claim 7, wherein the oxidizing agent is potassium nitrate.
Claim 13
Dependent Claim
74 words
A gas-generating composition useful for inflating air bags as protection for occupants of motor vehicles consisting of fuel and an inorganic oxidizing agent, wherein the fuel is at least one nitride selected from a member of the group consisting of boron nitride, aluminum nitride, silicon nitride, a transition metal nitride and a mixture thereof or at least one of said nitrides in combination with an ignition aid of metal powder and an oxidizing agent.
Claim 14
Dependent Claim
74 words
A gas-generating composition useful for inflating air bags as protection for occupants of motor vehicles consisting of fuel and an inorganic oxidizing agent, wherein the fuel is at least one nitride selected from a member of the group consisting of boron nitride, aluminum nitride, silicon nitride, a transition metal nitride and a mixture thereof or at least one of said nitrides in combination with an ignition aid of metal powder and an oxidizing agent.
Claim 15
Dependent Claim
20 words
The gas-generating composition of claim 11, wherein the nitride and the inorganic oxidizing agent are present in about stoichiometric proportions.
Claim 16
Dependent Claim
14 words
The gas-generating composition of claim 11, wherein the fuel contains a mixture of nitrides.
Claim 17
Dependent Claim
13 words
The gas-generating composition of claim 11, wherein the oxidizing agent is potassium nitrate.
References Cited (Backward Citations)
US4386979A
Cited
US4376002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |