US3972289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature-sensitive disarming element
Assignee: United States Department of the Navy
•
Filing: 1975-04-04
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Granted: 1976-08-03
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Expires: 1995-04-04
Abstract
Abstract A temperature-sensitive disarming element for a warhead comprising a retang ring for the detonation-lead positioning cup. The retaining ring is made from a material whose characteristic is that its mechanical strength degrades rapidly at a temperature of about 250°-300°F. so that it permits the positioning cup to be blown off in a flame environment. This prevents pressure buildup in the warhead charge, which would lead to detonation of the warhead.
Inventors
- 👤 Charles W. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:02
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/36; F42B; F42B39/00; F42B39/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
A system for preventing accidental detonation of a warhead charge due to fire comprising: means for containing the booster charge of said warhead; a retaining ring placed over at least part of said containing means so as to hold the latter in place, at least that part of said retaining ring which covers said containing means being fabricated from a material whose mechanical strength degrades rapidly in a hot environment; whereby if a fire occurs in the vicinity of said warhead said retaining ring would degrade, enabling said containing means to break away from said booster charge, thereby preventing detonation of said warhead.
Claim 2
Independent Claim
103 words
A system for preventing accidental detonation of a warhead charge due to fire comprising: means for containing the booster charge of said warhead; a retaining ring placed over at least part of said containing means so as to hold the latter in place, at least that part of said retaining ring which covers said containing means being fabricated from a material whose mechanical strength degrades rapidly in a hot environment; whereby if a fire occurs in the vicinity of said warhead said retaining ring would degrade, enabling said containing means to break away from said booster charge, thereby preventing detonation of said warhead.
Claim 3
Dependent Claim
32 words
A system as recited in claim 1 wherein said containing means comprises a detonation positioning cup and a sealing cup, and wherein said hot environment comprises temperatures between 250° to 300° fahrenheit.
References Cited (Backward Citations)
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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) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |