Patent US3994202A successfully refreshed from Google Patents.
US3994202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank turret cover
Assignee: Saab Bofors AB
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Filing: 1975-09-23
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Granted: 1976-11-30
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Expires: 1995-09-23
Abstract
Abstract A tank having a firearm mounted thereon for selective elevation and depression about trunnions located within a turret, is provided with a cover pivotally mounted on said turret and adapted to be engaged by the recoil jacket of the gun when the gun barrel is in a depressed position to swing the cover upwardly thereby to cause the recoil space to extend at least partially above a frame for the cover. The arrangement further includes a cartridge case deflector located within the tank below the cover and pivotally fastened at its opposing ends to a portion of the cover and to the recoil jacket of the barrel respectively, and the sides of the cartridge case deflector are adapted to be compressed by one another when engaged by a loading tray within the turret to enable rounds to be moved from a magazine to a loading position.
Inventors
- 👤 Bror Erling Tidstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:20
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/54
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
250 words
In combination, a tank, a firearm having a barrel mounted on said tank for selective elevation and depression about trunnions located on said tank, said firearm including a breech ring and a recoil jacket within said tank, a cover mounted on a frame on said tank, said cover being positioned above said breech ring and above a recoil space for said recoil jacket, said cover being mounted in said frame for pivotal movement so that, when the barrel of said firearm is in a depressed position in relation to the chassis of said tank, said cover is engaged by a portion of said firearm rearward of said trunnions to cause said cover to move into a swung-up position thereby to cause said recoil space to extend at least partly above said frame, said cover including downwardly extending portions operative, when said cover is in said swung-up position, to seal said cover against said frame, and a cartridge case deflector located within said tank below said cover, said deflector, in a plane at right angles to said trunnions, having one end thereof rotatably fastened to said cover and its other end rotatably fastened adjacent said recoil jacket, said deflector being operative to provide a deflection channel which, in the cartridge case, ejection position of the barrel, extends from the breech ring of the barrel to an opening arranged in the rear part of said cover irrespective of the elevation or depression of said barrel and of the position of said cover.
Claim 2
Dependent Claim
250 words
In combination, a tank, a firearm having a barrel mounted on said tank for selective elevation and depression about trunnions located on said tank, said firearm including a breech ring and a recoil jacket within said tank, a cover mounted on a frame on said tank, said cover being positioned above said breech ring and above a recoil space for said recoil jacket, said cover being mounted in said frame for pivotal movement so that, when the barrel of said firearm is in a depressed position in relation to the chassis of said tank, said cover is engaged by a portion of said firearm rearward of said trunnions to cause said cover to move into a swung-up position thereby to cause said recoil space to extend at least partly above said frame, said cover including downwardly extending portions operative, when said cover is in said swung-up position, to seal said cover against said frame, and a cartridge case deflector located within said tank below said cover, said deflector, in a plane at right angles to said trunnions, having one end thereof rotatably fastened to said cover and its other end rotatably fastened adjacent said recoil jacket, said deflector being operative to provide a deflection channel which, in the cartridge case, ejection position of the barrel, extends from the breech ring of the barrel to an opening arranged in the rear part of said cover irrespective of the elevation or depression of said barrel and of the position of said cover.
Claim 3
Dependent Claim
20 words
The structure of claim 1 wherein said tank includes a rotatable turret, said cover comprising a portion of said turret.
Claim 4
Dependent Claim
57 words
The structure of claim 1 wherein said cartridge case deflector comprises two side walls and bottom therebetween, said side walls being mounted for selective movement toward one another thereby to permit said deflector to be compressed in the direction of its width to make it possible to move rounds to a loading position relative to said firearm.
Claim 5
Dependent Claim
63 words
The structure of claim 3 wherein the bottom of said deflector is rigidly fastened to one of said side walls, said bottom being supported in a slot provided in the other side wall so that it can be pressed inwards and outwards relative to said slot in said other side wall, each of said rotatable fastenings being made in said other side wall.
Claim 6
Dependent Claim
47 words
The structure of claim 4 including a loading tray mounted for movement within said tank, said tray being positioned alongside said cartridge case deflector and being operative to engage a sidewall of said deflector to compress said deflector when said loading tray is in a loading position.
Claim 7
Dependent Claim
87 words
The structure of claim 5 including guide pins extending between the upper parts of said side walls in spaced relation to said bottom, spring means disposed adjacent said guide pins and adjacent said bottom and arranged so that, as soon as the force pressing the side walls together ceases, said spring means return the side walls to a spaced apart position relative to one another, and stops located on said cover and on said recoil jacket for limiting the movement of said sidewalls away from one another.
References Cited (Backward Citations)
US2976769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |