US3928964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrotechnic cool gas generation method for inflatable structure
Assignee: Honeywell International Inc
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Filing: 1973-11-19
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Granted: 1975-12-30
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Expires: 1993-11-19
Abstract
Abstract The introduction of a generated gas through an oxidizer bed, which, optionally, may also include a coolant.
Inventors
- 👤 Brian K Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
A METHOD OF FILLING AN AIR CUSHION ASSEMBLY WITH A GENERATED GAS WITHOUT THE PRODUCTION OF CARBON MONOXIDE AND AT A TEMPERATURE LESS THAN ABOUT 2000*F., COMPRISING BURNING A PROPELLANT GRAIN TO GENERATE GAS, PASSING SAID GENERATED GAS THROUGH A POROUS BED OF OXIDIZER AND COOLANT, FURTHER COOLING SAID GAS BY MECHANICAL HEAT EXCHANGE WITH A HEAT EXCHANGE SURFACE AFTER PASSING THE GAS THROUGH THE BED, FURTHER TREATING THE OXIDIZED GAS EMERGED FROM THE POROUS BED WITH A SEPARATE COOLANT, AND DIRECTING THE GENERATED GAS TO AN AIR CUSHION ASSEMBLY.
Claim 2
Independent Claim
90 words
A METHOD OF FILLING AN AIR CUSHION ASSEMBLY WITH A GENERATED GAS WITHOUT THE PRODUCTION OF CARBON MONOXIDE AND AT A TEMPERATURE LESS THAN ABOUT 2000*F., COMPRISING BURNING A PROPELLANT GRAIN TO GENERATE GAS, PASSING SAID GENERATED GAS THROUGH A POROUS BED OF OXIDIZER AND COOLANT, FURTHER COOLING SAID GAS BY MECHANICAL HEAT EXCHANGE WITH A HEAT EXCHANGE SURFACE AFTER PASSING THE GAS THROUGH THE BED, FURTHER TREATING THE OXIDIZED GAS EMERGED FROM THE POROUS BED WITH A SEPARATE COOLANT, AND DIRECTING THE GENERATED GAS TO AN AIR CUSHION ASSEMBLY.
Claim 3
Dependent Claim
29 words
A method as set forth in claim 1, said coolant in each occurrence selected from a class consisting of magnesium carbonate, sodium carbonate, or a combination of the two.
Claim 4
Dependent Claim
30 words
A method as set forth in claim 1, said porous bed of oxidizer selected from the class consisting of a metal chlorate, metal perchlorate and a combination of the two.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |