US3902934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas generating compositions
Assignee: HBB A CORP OF LP
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Filing: 1973-08-22
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Granted: 1975-09-02
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Expires: 1993-08-22
Abstract
Abstract A deflagration composition yielding a gas comprising principally carbon dioxide and water vapor comprises a substantially homogeneous mixture of citric acid powder in the range of from about 25 to 37 percent by weight and an oxidizer powder selected from the group consisting of potassium chlorate, potassium perchlorate, sodium chlorate, and sodium perchlorate. This composition may be used adjacent a coolant powder comprising up to about 40 percent by weight of potassium chlorate and an endothermic decomposition coolant having a thermal decomposition product selected from the class consisting of carbon dioxide and water.
Inventors
- 👤 Hubert G Timmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:04
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/264; B60R21/2644; C; C06; C06B; C06B29/00; C06B29/02; C06B29/04; C06D; C06D5/00; C06D5/06; B60R2021/2648; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/113; Y10S149/115
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
A NON TOXIC GAS GENERATING COMPRISING AN ORGANIC ACID POWDER HAVING AN AVERAGE PARTICLE SIZE LESS THAN ABOUT 15 MICRONS AND SELECTED FROM THE GROUP CONSISTING OF CITRIC ACID IN THE RANGE OF FROM ABOUT 25 TO 37 PERCENT BY WEIGHT, TATTARIC ACID IN THE RANGE OF FROM ABOUT PERCENT BY WEIGHT, TARTRONIC ACID IN THE RANGE OF FROM ABOUT 25 TO 49.5 PERCENT BY WEIGHT AND MALONIC ACID IN THE RANGE OF FROM ABOUT 200 TO 36.7 PERCENT BY WEIGHT, AND A BALANCE OF AN OXIDIZER POWDER HAVING AN AVERAGE PARTICLE SIZE LESS THAN ABOUT 25 MICRONS AND SELECTED FROM THE GROUP CONSISTING OF POTASSIUM CHLORATE, POTASSIUM PERCHLORATE, SODIUM CHLORATE, AND SODIUM PERCHLORATE.
Claim 2
Dependent Claim
114 words
A NON TOXIC GAS GENERATING COMPRISING AN ORGANIC ACID POWDER HAVING AN AVERAGE PARTICLE SIZE LESS THAN ABOUT 15 MICRONS AND SELECTED FROM THE GROUP CONSISTING OF CITRIC ACID IN THE RANGE OF FROM ABOUT 25 TO 37 PERCENT BY WEIGHT, TATTARIC ACID IN THE RANGE OF FROM ABOUT PERCENT BY WEIGHT, TARTRONIC ACID IN THE RANGE OF FROM ABOUT 25 TO 49.5 PERCENT BY WEIGHT AND MALONIC ACID IN THE RANGE OF FROM ABOUT 200 TO 36.7 PERCENT BY WEIGHT, AND A BALANCE OF AN OXIDIZER POWDER HAVING AN AVERAGE PARTICLE SIZE LESS THAN ABOUT 25 MICRONS AND SELECTED FROM THE GROUP CONSISTING OF POTASSIUM CHLORATE, POTASSIUM PERCHLORATE, SODIUM CHLORATE, AND SODIUM PERCHLORATE.
Claim 3
Dependent Claim
33 words
A composition as defined in claim 1 further comprising an endothermic decomposition powder that decomposes to pRoduce a gaseous decomposition product selected from the class consisting of carbon dioxide, oxygen and water vapor.
Claim 4
Dependent Claim
15 words
A composition as defined in claim 1 wherein the organic acid powder comprises citric acid.
Claim 5
Dependent Claim
68 words
A non toxic gas generating composition comprising: from about 25 to 37 percent by weight of citric acid powder having an average particle size less than about 15 microns; and from about 63 to 75 percent by weight of an oxidizer powder having an average particle size less than about 25 microns and selected from the group consisting of potassium chlorate, potassium perchlorate, sodium chlorate, and sodium perchlorate.
Claim 6
Dependent Claim
68 words
A non toxic gas generating composition comprising: from about 25 to 37 percent by weight of citric acid powder having an average particle size less than about 15 microns; and from about 63 to 75 percent by weight of an oxidizer powder having an average particle size less than about 25 microns and selected from the group consisting of potassium chlorate, potassium perchlorate, sodium chlorate, and sodium perchlorate.
Claim 7
Dependent Claim
13 words
A composition as defined in claim 4 wherein the oxidizer is potassium chlorate.
Claim 8
Dependent Claim
31 words
A composition as defined in claim 5 wherein the citric acid is present as about 32 percent by weight and the potassium chlorate is present as about 68 percent by weight.
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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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |