Patent US5147322B1 successfully refreshed from Google Patents.
US4004516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuze
Assignee: United States Department of the Navy
•
Filing: 1975-10-24
•
Granted: 1977-01-25
•
Expires: 1995-10-24
Abstract
Abstract An existing booster and fuze combination is modified to provide relief fromemperature and pressure buildup in an open fire environment. The booster explosive, thus, is encased in a low temperature melting plastic and the main housing is vented by boring a number of passages through the major thread diameter shoulder of the fuze case.
Inventors
- 👤 Clifford T. Johnson
- 👤 Melvin J. McCubbin
- 👤 Thomas R. Zulkoski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:20
CPC Classifications
F; F42; F42B; F42B39/00; F42B39/20; F42C; F42C15/00; F42C15/36
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
In a booster-fuze combination wherein a booster and fuze are fastened together as a unit and inserted in a housing contained within a warhead, the improvement comprising: said fuze being contained within a metal container having a threaded shoulder for attachment within a threaded housing and a lesser diameter threaded end portion receiving a booster cup; an explosive booster material in said cup having a predetermined self-detonation temperature; said booster cup being manufactured of a material which will soften and melt before the self-detonation temperature of the booster; and a plurality of through holes bored longitudinally through said fuze container shoulder.
Claim 2
Dependent Claim
101 words
In a booster-fuze combination wherein a booster and fuze are fastened together as a unit and inserted in a housing contained within a warhead, the improvement comprising: said fuze being contained within a metal container having a threaded shoulder for attachment within a threaded housing and a lesser diameter threaded end portion receiving a booster cup; an explosive booster material in said cup having a predetermined self-detonation temperature; said booster cup being manufactured of a material which will soften and melt before the self-detonation temperature of the booster; and a plurality of through holes bored longitudinally through said fuze container shoulder.
Claim 3
Dependent Claim
101 words
In a booster-fuze combination wherein a booster and fuze are fastened together as a unit and inserted in a housing fastened within the rear bulkhead of a warhead, the improvement comprising: said fuze being contained within a metal container having a threaded end portion receiving a booster cup; an explosive booster material in said cup having a predetermined self-detonation temperature; said booster cup being manufactured of a material which will soften and melt before the self-detonation temperature of the booster; said booster cup being spaced from said metal container to provide an expansion chamber; and venting means rearward of said bulkhead.
Claim 4
Dependent Claim
101 words
In a booster-fuze combination wherein a booster and fuze are fastened together as a unit and inserted in a housing fastened within the rear bulkhead of a warhead, the improvement comprising: said fuze being contained within a metal container having a threaded end portion receiving a booster cup; an explosive booster material in said cup having a predetermined self-detonation temperature; said booster cup being manufactured of a material which will soften and melt before the self-detonation temperature of the booster; said booster cup being spaced from said metal container to provide an expansion chamber; and venting means rearward of said bulkhead.
References Cited (Backward Citations)
US1556027A
Cited
US2828691A
Cited
US3173364A
Cited
US3401632A
Cited
US3665857A
Cited
US3749024A
Cited
US3713359A
Cited
US3713360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |