US3749024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outgassing technique
Assignee: United States Department of the Navy
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Filing: 1971-04-26
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Granted: 1973-07-31
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Expires: 1991-04-26
Abstract
Abstract An outgassing technique which comprises providing a chemical liner for a casing or container which will decompose into a gas with sufficient pressure to rupture the casing when the container is subjected to a high heat source. This allows release of any material within the container.
Inventors
- 👤 J Pakulak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:37
CPC Classifications
F; F42; F42B; F42B39/00; F42B39/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
A method for preventing a sealed vessel which contains an explosive from detonating on fast cook off of said explosive, said method comprising placing a liner between the explosive and the interior walls of the vessel which, when exposed to a temperature of a predetermined magnitude, will produce gases; heating the vessel to decompose the liner; and rupturing the vessel by gases produced by the decomposing of said liner to permit the explosive to burn without exploding.
Claim 2
Independent Claim
77 words
A method for preventing a sealed vessel which contains an explosive from detonating on fast cook off of said explosive, said method comprising placing a liner between the explosive and the interior walls of the vessel which, when exposed to a temperature of a predetermined magnitude, will produce gases; heating the vessel to decompose the liner; and rupturing the vessel by gases produced by the decomposing of said liner to permit the explosive to burn without exploding.
Claim 3
Dependent Claim
40 words
The method in accordance with claim 1 wherein said liner comprises a binder consisting essentially of bitumens which occur in nature and a chemical compound which will decompose into gases when subjected to heat from a sourcE outside said vessel.
Claim 4
Dependent Claim
39 words
The method in accordance to claim 2 wherein said chemical compound exhibits endothermic decomposition into gases and is selected from the group consisting of ammonium oxalate, oxalic acid, oxamide, urea oxalate, ammonium formate, 5-amino-1H-tetrazole; orotic acid, semioxamazide, and 1-formyl-3-thiosemicarbazide.
Claim 5
Dependent Claim
34 words
The method in accordance with claim 2 wherein said chemical compound exhibits exothermic decomposition into gases and is selected from the group consisting of nitroguanidine, guanidine nitrate, oxalhydroxamic acid, ammonium nitrate and ammunium perchlorate.
Claim 6
Dependent Claim
66 words
The method in accordance with claim 2 wherein said chemical compound decomposes into gases at a temperature between 200* and 1,000*C and is selected from the group consisting of the oxalates of sodium, potassium, magnesium, calcium, aluminum, and titanium, the carbonates of lithium sodium, potassium, magnesium, and calcium, the formates of magnesium, aluminum, and sodium, the acetates of sodium, potassium, magnesium, and calcium and iodic acid.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |