Patent US3897285A successfully refreshed from Google Patents.
US3897285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrotechnic formulation with free oxygen consumption
Assignee: Honeywell International Inc
•
Filing: 1973-09-10
•
Granted: 1975-07-29
•
Expires: 1993-09-10
Abstract
Abstract This pyrotechnic composition is adapted, upon combustion, for generating a low-flame temperature, non-toxic gas to inflate a vehicle safety bag. The pyrotechnic composition comprises: a fuel, such as a carbonaceous material, aluminum or magnesium; a coolant, such as a metallic carbonate; and an inorganic oxidizer, such as a metal chlorate, a metal perchlorate, a metal nitrate, ammonium chlorate, ammonium perchlorate or ammonium nitrate. In some instances, a metallo-organic compound, such as nickel formate, may be used as the fuel in mixture with or in place of the carbonaceous material, or the aluminum or the magnesium.
Inventors
- 👤 Brian K Hamilton
- 👤 Eugene F Garner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:23
CPC Classifications
C; C06; C06B; C06B43/00; C06B23/00; C06B23/02; C06B41/00; C06D; C06D5/00; C06D5/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
66 words
A PYROTECHNIC COMPOSITION ADAPTED, UPON COMBUSTION, FOR GENERATING A LOW-FLAME TEMPERATURE, NON-TOXIC GAS, SAID COMPOSITION PRIOR TO COMBUSTION COMPRISING: A FUEL, A METAL CARBONATE SELECTED FROM THE GROUP CONSISTING OF NICKEL CARBONATE AND MAGNESIUM CARBONATE WHICH ACTS AS A COOLANT, AND AN INORGANIC OXIDIZER SELECTED FROM THE GROUP CONSISTING OF A METAL CHLORATE, A METAL PERCHLORATE, A METAL NITRATE, AMMONIUM CHLORATE, AMMONIUM PERCHLORATE AND AMMONIUM NITRATE.
Claim 2
Dependent Claim
66 words
A PYROTECHNIC COMPOSITION ADAPTED, UPON COMBUSTION, FOR GENERATING A LOW-FLAME TEMPERATURE, NON-TOXIC GAS, SAID COMPOSITION PRIOR TO COMBUSTION COMPRISING: A FUEL, A METAL CARBONATE SELECTED FROM THE GROUP CONSISTING OF NICKEL CARBONATE AND MAGNESIUM CARBONATE WHICH ACTS AS A COOLANT, AND AN INORGANIC OXIDIZER SELECTED FROM THE GROUP CONSISTING OF A METAL CHLORATE, A METAL PERCHLORATE, A METAL NITRATE, AMMONIUM CHLORATE, AMMONIUM PERCHLORATE AND AMMONIUM NITRATE.
Claim 3
Dependent Claim
23 words
The pyrotechnic composition according to claim 1 wherein said fuel is selected from tHe group consisting of a carbonaceous material, aluminum and magnesium.
Claim 4
Dependent Claim
29 words
The pyrotechnic composition according to claim 1 wherein said fuel is a metallo-organic compound selected from the group consisting of nickel formate, iron oxalate, magnesium oxalate and aluminum formate.
Claim 5
Dependent Claim
49 words
The pyrotechnic composition according to claim 1 wherein said fuel is a mixture of: a compound selected from the group consisting of a carbonaceous material, aluminum and magnesium; and a metallo-organic compound selected from the group consisting of nickel formate, iron oxalate, magnesium carbonate, magnesium oxalate and aluminum formate.
Claim 6
Dependent Claim
51 words
The pyrotechnic composition according to claim 1 comprising: from less than 1 to about 10% of a carbonaceous material which acts as the fuel; from less than 1 to about 50% of a metallic carbonate which acts as the coolant; and from about 35 to about 75% of an inorganic oxidizer.
Claim 7
Dependent Claim
67 words
The pyrotechnic composition according to claim 1 comprising: from less than 1 to about 10% of a carbonaceous material and from less than 1 to about 30% of a metallo-organic compound, said carbonaceous material and said metallo-organic compound acting as the fuel; from less than 1 to about 50% of a metallic carbonate as the coolant; and from about 35 to about 75% of an inorganic oxidizer.
Claim 8
Dependent Claim
41 words
The pyrotechnic composition according to claim 1 comprising: from about 2 to about 6% carbon as the fuel; from about 15 to about 45% nickel carbonate as the coolant; and from about 45 to about 70% potassium chlorate as the oxidizer.
Claim 9
Dependent Claim
56 words
The pyrotechnic composition according to claim 1 comprising: from about 2 to about 6% carbon and from about 15 to about 25% nickel formate, said carbon and said nickel formate as the fuel; from about 15 to about 35% nickel carbonate as the coolant; and from about 45 to about 70% potassium chlorate as the oxidizer.
Claim 10
Dependent Claim
38 words
The pyrotechnic composition according to claim 1 comprising: about 4% carbon and about 19 1/2 % nickel formate as the fuel; about 56 1/2 % potassium chlorate as the oxidizer and about 20% nickel carbonate as the coolant.
Claim 11
Dependent Claim
10 words
The pyrotechnic composition according to claim 1 in pellet form.
Claim 12
Dependent Claim
76 words
A process for generating a low-flame temperature, non-toxic gas to inflate a vehicle safety bag, comprising: intermixing a fuel; a coolant selected from the group consisting of nickel carbonate and magnesium carbonate; and an inorganic oxidizer selected from the group consisting of a metal chlorate, a metal perchlorate, a metal nitrate, ammonium chlorate, ammonium perchlorate and ammonium nitrate; into a composition; and causing combustion of said composition after said intermixing of said fuel, coolant and oxidizer.
Claim 13
Dependent Claim
76 words
A process for generating a low-flame temperature, non-toxic gas to inflate a vehicle safety bag, comprising: intermixing a fuel; a coolant selected from the group consisting of nickel carbonate and magnesium carbonate; and an inorganic oxidizer selected from the group consisting of a metal chlorate, a metal perchlorate, a metal nitrate, ammonium chlorate, ammonium perchlorate and ammonium nitrate; into a composition; and causing combustion of said composition after said intermixing of said fuel, coolant and oxidizer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |