US5198046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable, nitrogen-rich composition
Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
•
Filing: 1992-03-10
•
Granted: 1993-03-30
•
Expires: 2012-03-10
Abstract
Abstract A stable, nitrogen-rich organic compound in the form of diguanidinium-5,5'-azotetrazolate having the empirical formula C4H12N16, is with a pulverulent, chemically stable oxidizer as a pyrotechnic mixture for spontaneously generating environmentally friendly, non-toxic gases.
Inventors
- 👤 Klaus M. Bucerius
- 👤 Friedrich-Wilhelm Wasmann
- 👤 Klaus Menke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:02
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06; C06B; C06B43/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
20 words
A pyrotechnic mixture for generating environmentally friendly, non-toxic gases, comprising diguanidinium- 5,5'-azotetrazolate (GZT) mixed with a pulverulent, chemically stable oxidizer.
Claim 2
Dependent Claim
20 words
A pyrotechnic mixture for generating environmentally friendly, non-toxic gases, comprising diguanidinium- 5,5'-azotetrazolate (GZT) mixed with a pulverulent, chemically stable oxidizer.
Claim 3
Dependent Claim
14 words
A pyrotechnic mixture according to claim 1, wherein the oxidizer is KNO 3 .
Claim 4
Dependent Claim
15 words
A pyrotechnic mixture according to claim 1 or 2, wherein the mixture is finely ground.
Claim 5
Dependent Claim
25 words
A pyrotechnic mixture according to claim 3, wherein more than 50% of the particles in the mixture have a particle diameter smaller than 15 μm.
Claim 6
Dependent Claim
16 words
A pyrotechnic mixture according to claim 1 or 2, wherein the mixture is compacted to blanks.
Claim 7
Dependent Claim
26 words
A pyrotechnic mixture according to claim 5, wherein organic or inorganic binders are added in a proportion up to 5% by weight for forming the blanks.
Claim 8
Dependent Claim
26 words
A pyrotechnic mixture according to claim 1, further comprising a catalytic burn-off regulator for controlling gas generation in a proportion of 0.1 to 5% by weight.
Claim 9
Dependent Claim
24 words
A pyrotechnic mixture according to claim 7, wherein the burn-off regulator is an oxide of heavy metals of auxiliary groups of the periodic system.
Claim 10
Dependent Claim
29 words
A pyrotechnic mixture according to claim 8, wherein the burn-off regulator is an oxide of heavy metals of auxiliary groups I or VIII of the periodic system of elements.
Claim 11
Dependent Claim
17 words
A pyrotechnic mixture according to claim 8 or 9, wherein the burn-off regulator is an iron oxide.
Claim 12
Dependent Claim
29 words
A pyrotechnic mixture according to claim 6, wherein the burn-off regulator at least one of organic or inorganic salts of heavy metals of auxiliary groups of the periodic system.
Claim 13
Dependent Claim
14 words
A pyrotechnic mixture according to claim 3, wherein the mixture is compacted to blanks.
Claim 14
Dependent Claim
14 words
A pyrotechnic mixture according to claim 4, wherein the mixture is compacted to blanks.
Claim 15
Independent Claim
22 words
A method for generating environmentally friendly, non-toxic gases comprising reacting a pyrotechnic mixture comprising diguanidinium-5,5'-azotetrazolate (GZT) and a pulverulent, chemically stable oxidizer.
Claim 16
Independent Claim
22 words
A method for generating environmentally friendly, non-toxic gases comprising reacting a pyrotechnic mixture comprising diguanidinium-5,5'-azotetrazolate (GZT) and a pulverulent, chemically stable oxidizer.
References Cited (Backward Citations)
US1580522A
Cited
US3719604A
Cited
US3909322A
Cited
US3912561A
Cited
US4078954A
Cited
US4340755A
Cited
US4462910A
Cited
US4601344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-03-29 | 1996-09-28 | 1997-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-29 | 2000-09-28 | 2001-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-29 | 2004-09-28 | 2005-03-30 | $7700.00 | Window Closed / Lapsed |