US3901747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrotechnic composition with combined binder-coolant
Assignee: Honeywell International Inc
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Filing: 1973-09-10
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Granted: 1975-08-26
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Expires: 1993-09-10
Abstract
Abstract This pyrotechnic composition is adapted, upon combustion, for generating a low-flame temperature, non-toxic gas for inflating a vehicle safety bag. The composition comprises: a fuel, such as a carbonaceous material, aluminum or magnesium; an inorganic oxidizer, such as a metal chlorate, a metal perchlorate, a metal nitrate, ammonium chlorate, ammonium perchlorate or ammonium nitrate; and a combined binder and coolant, such as magnesium hydroxide or a mixture of magnesium hydroxide and magnesium carbonate. A typical example of this composition comprises: carbon as the fuel; potassium chlorate as the oxidizer; and a mixture of magnesium hydroxide and magnesium carbonate as the binder-coolant. One may use as much of this binder-coolant as is necessary to obtain the desired binding properties in the composition, without raising the flame temperature of the gas to an unacceptable level.
Inventors
- 👤 Eugene F Garner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:25
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06; C06B; C06B23/00; C06B23/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A PYROTECHNIC COMPOSITION ADAPTED, UPON COMBUSTION, FOR GENERATING A LOW-FLAME TEMPERATURE, NON-TOXIC GAS, SAID COMPOSITION COMPRISING: A FUEL SELECTED FROM THE GROUP CONSISTING OF A CARBONACEOUS MATERIAL, ALUMINUM AND MAGNESIUM AN INORGANIC OXIDIZER SELECTED FROM THE GROUP CONSISTING OF A METAL CHLORATE, A METAL PERCHLORATE, A METAL NITRATE, AMMONIUM NITRATE, AMMONIUM CHLORATE, AND AMMONIUM PERCHLORATE, AND A COMBINED BINDER AND COLANT SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM HYDROXIDE AND A MIXTURE OF MAGNESIUM HYDROXIDE AND MAGNESIUM CARBONATE.
Claim 2
Dependent Claim
78 words
A PYROTECHNIC COMPOSITION ADAPTED, UPON COMBUSTION, FOR GENERATING A LOW-FLAME TEMPERATURE, NON-TOXIC GAS, SAID COMPOSITION COMPRISING: A FUEL SELECTED FROM THE GROUP CONSISTING OF A CARBONACEOUS MATERIAL, ALUMINUM AND MAGNESIUM AN INORGANIC OXIDIZER SELECTED FROM THE GROUP CONSISTING OF A METAL CHLORATE, A METAL PERCHLORATE, A METAL NITRATE, AMMONIUM NITRATE, AMMONIUM CHLORATE, AND AMMONIUM PERCHLORATE, AND A COMBINED BINDER AND COLANT SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM HYDROXIDE AND A MIXTURE OF MAGNESIUM HYDROXIDE AND MAGNESIUM CARBONATE.
Claim 3
Dependent Claim
40 words
The pyrotechnic composition according to claim 1 comprising by weight: less than 1 to about 10% of said fuel; about 30 to about 70% of said inorganic oxidizer; and about 10 to about 60% of said combined binder and coolant.
Claim 4
Dependent Claim
39 words
The pyrotechnic composition according to claim 1 comprising by weight: about 3 to about 7% of said fuel; about 40 to about 60% of said inorganic oxidizer; and about 35 to about 55% of said combined binder and coolant.
Claim 5
Dependent Claim
23 words
The pyrotechnic composition according to claim 1 wherein said magnesium hydroxide comprises by weight about 10 to about 30% of the entire composition.
Claim 6
Dependent Claim
23 words
The pyrotechnic composition according to claim 1 wherein said combined binder and coolant consists of a mixture of magnesium hydroxide and magnesium carbonate.
Claim 7
Dependent Claim
41 words
The pyrotechnic composition according to claim 5 wherein said combined binder and coolant comprises about 10 to about 30% magnesium hydroxide as compared to the entire composition and about 20 to about 40% magnesium carbonate as compared to the entire composition.
Claim 8
Dependent Claim
26 words
The pyrotechnic composition according to claim 6 wherein said mixture of magnesium hydroxide and magnesium carbonate comprises about equal amounts of magnesium hydroxide and magnesium carbonate.
Claim 9
Dependent Claim
32 words
The composition according to claim 1 comprising by weight: about 5% carbon; about 50% potassium chlorate; and about 45% of a mixture of about equal amounts of magnesium hydroxide and magnesium carbonate.
Claim 10
Dependent Claim
12 words
The pyrotechnic composition according to claim 1 in the form of pellets.
References Cited (Backward Citations)
US3532359A
Cited
US3647393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |