US3635162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Practice bomb
Assignee: United States Department of the Navy
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Filing: 1970-07-09
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Granted: 1972-01-18
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Expires: 1990-07-09
Abstract
Abstract A practice bomb having a signal cartridge for locating the point of impact of said practice bomb after an airdrop and having means for arming the practice bomb during flight of said practice bomb by actuation of an arming pin connected to foldable fins which open upon high velocity of said practice bomb.
Inventors
- 👤 Carl W Lohkamp
- 👤 James E Short Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:13
CPC Classifications
F; F42; F42B; F42B8/00; F42B8/12; F42B8/22; F42B10/00; F42B10/02; F42B10/14; F42B12/00; F42B12/02; F42B12/36; F42B12/46; F42B12/48; F42C; F42C15/00; F42C15/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
74 words
A practice bomb comprising, a bomb case, fins pivotally attached to said bomb case and adaptable for opening upon launching of said practice bomb, a firing pin stationarily mounted in said bomb case, marking means slidably mounted within said bomb case and engageable with said firing pin for indicating the point of impact of said bomb case, and arming means connected to said fins for arming said practice bomb upon opening of said fins.
Claim 2
Dependent Claim
74 words
A practice bomb comprising, a bomb case, fins pivotally attached to said bomb case and adaptable for opening upon launching of said practice bomb, a firing pin stationarily mounted in said bomb case, marking means slidably mounted within said bomb case and engageable with said firing pin for indicating the point of impact of said bomb case, and arming means connected to said fins for arming said practice bomb upon opening of said fins.
Claim 3
Dependent Claim
57 words
A practice bomb as set forth in claim 1 wherein said marking means comprises a signal cartridge having a primer, a quantity of smokeless powder and a quantity of phosphorus composition whereupon impact of said practice bomb said primer strikes said firing pin thereby igniting said smokeless powder which in turn ignites and expels said phosphorus composition.
Claim 4
Dependent Claim
38 words
A practice bomb as set forth in claim 2 wherein said arming means includes an arming stop pin positioned between said firing pin and said signal cartridge for preventing ignition of said signal cartridge until said fins open.
Claim 5
Dependent Claim
32 words
A practice bomb as set forth in claim 2 wherein an inertia sleeve is attached to said signal cartridge to facilitate movement of said signal cartridge upon impact of said practice bomb.
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |