US3855933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual purpose grenade
Assignee: United States Department of the Army
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Filing: 1967-05-11
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Granted: 1974-12-24
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Expires: 1987-05-11
Abstract
Abstract A dual purpose grenade having a shaped high explosive charge for effectiveness against lightly armored targets, the said shaped charge having embossed walls for effectiveness against personnel.
Inventors
- 👤 J Messineo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:26
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/20; F42B12/22; F42B10/00; F42B10/02; F42B10/14; F42B12/04; F42B12/10; F42B12/105; F42C; F42C15/00; F42C15/18; F42C15/184
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A dual purpose grenade which comprises; a base, a hollow cylindrical sleeve of open end construction secured in axial alignment to said base, a spring means mounted in said sleeve against said base, a canister having a lower and upper end, said lower end of said canister insertably mounted into said sleeve against said spring, said canister containing, in series, a firing pin, a detonator, a booster, and a shaped high explosive charge, and a plurality of spring actuated vanes, each of which having an upper and lower end, said upper end of said vanes being pivotally mounted on said upper end of said canister, said lower ends of sAid vanes being restrained in position adjacent to the body of canister by said cylindrical sleeve.
Claim 2
Dependent Claim
125 words
A dual purpose grenade which comprises; a base, a hollow cylindrical sleeve of open end construction secured in axial alignment to said base, a spring means mounted in said sleeve against said base, a canister having a lower and upper end, said lower end of said canister insertably mounted into said sleeve against said spring, said canister containing, in series, a firing pin, a detonator, a booster, and a shaped high explosive charge, and a plurality of spring actuated vanes, each of which having an upper and lower end, said upper end of said vanes being pivotally mounted on said upper end of said canister, said lower ends of sAid vanes being restrained in position adjacent to the body of canister by said cylindrical sleeve.
Claim 3
Dependent Claim
29 words
The device of claim 1 wherein said spring is in the expanded state and said cylindrical sleeve is moved in telescopical fashion along said canister to a stand-off position.
Claim 4
Dependent Claim
32 words
The device of claim 2 wherein said cylindrical sleeve is held in the stand-off position by a plurality of locking tabs positioned in spaced relation around the outer surface of said canister.
Claim 5
Dependent Claim
22 words
The device of claim 2 wherein said vanes are unrestrained and extend upwardly and outwardly from said pivotal point on said canister.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |