Patent US4005632A successfully refreshed from Google Patents.
US4005632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid propellant gun
Assignee: United States Department of the Navy
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Filing: 1975-09-15
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Granted: 1977-02-01
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Expires: 1995-09-15
Abstract
Abstract The injector assembly for liquid propellant guns is slidably mounted for ement into or out of the firing chamber of the gun as a sliding breech block. The bolt is movable within the injector assembly in one portion and the firing device is chambered in the alternate portion of the block.
Inventors
- 👤 John W. Holtrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:01
CPC Classifications
F; F41; F41A; F41A1/00; F41A1/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
In a gun, a sliding breech block movable between a firing position and a loading position, a firing device chambered in a first portion of said block, valve means including a cylindrical valve slidably mounted in a second portion of said block and defining with said second block portion a fuel chamber and a hydraulic control chamber, so that said valve means is removed from the breech area when the gun is in said firing position ready to be fired by said firing device.
Claim 2
Dependent Claim
84 words
In a gun, a sliding breech block movable between a firing position and a loading position, a firing device chambered in a first portion of said block, valve means including a cylindrical valve slidably mounted in a second portion of said block and defining with said second block portion a fuel chamber and a hydraulic control chamber, so that said valve means is removed from the breech area when the gun is in said firing position ready to be fired by said firing device.
Claim 3
Dependent Claim
60 words
The gun according to claim 1 further including: a forward breech portion receiving a tubular barrel, a rearward breech portion having a bore, a bolt and bolt actuator mounted for sliding action in said bore and movable from a position wholly within said bore to a position within said second block portion when said block is in said loading position.
Claim 4
Dependent Claim
37 words
The gun of claim 2 further including: a first obturating seal in said barrel at the juncture of said forward breech portion and said block and a second obturating seal on the forward end of said bolt.
Claim 5
Dependent Claim
162 words
In a liquid propellant gun for firing semi-cased or uncased rounds, the combination comprising: a gun barrel; a breech; a breech block slidably received in said breech and movable from a first position for firing and a second position for loading; a firing device chambered in said block such as to be placed substantially concentric to and in communication with the bore of said barrel when said block is in said first position; a cylindrical valve slidably mounted in said block such that said valve is placed concentric to and communicating with the bore of said barrel when said block is in said second position; a bolt and bolt actuator associated with said block such that said bolt is slidably received within said valve so that; when said block is in said first position, said firing device may be actuated for firing a projectile; and when said block is in said second position, said bolt may be reciprocated to reload the gun.
Claim 6
Dependent Claim
162 words
In a liquid propellant gun for firing semi-cased or uncased rounds, the combination comprising: a gun barrel; a breech; a breech block slidably received in said breech and movable from a first position for firing and a second position for loading; a firing device chambered in said block such as to be placed substantially concentric to and in communication with the bore of said barrel when said block is in said first position; a cylindrical valve slidably mounted in said block such that said valve is placed concentric to and communicating with the bore of said barrel when said block is in said second position; a bolt and bolt actuator associated with said block such that said bolt is slidably received within said valve so that; when said block is in said first position, said firing device may be actuated for firing a projectile; and when said block is in said second position, said bolt may be reciprocated to reload the gun.
References Cited (Backward Citations)
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Cited
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Cited
US2789472A
Cited
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Cited
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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) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |