Back to results
US 5,565,642 AGranted
Compressed gas weapon
AssigneeMayer & Grammelspacher DIANAWERK
InventorWalter Heitz
Life of this patent
Estimating the term…
Abstract
A compressed gas weapon (10) is configured in the breech portion (18) of its barrel (12) to accommodate a projectile (24) in a position of readiness to fire and to reproducibly caliber the projectile (24) in the process of conveying it into the position of readiness to fire.
Claims47
A compressed gas weapon system comprising
- a firing mechanism having a bore with an axis and a projectile exit end and defined by at least one member,
- a projectile,
- a compressed gas generating cartridge usable for a single shot, said compressed gas generating cartridge containing a propellant for generating a compressed gas for providing a gas pressure for propelling the projectile axially of the bore in a direction of firing towards the projectile exit end and being provided in its interior with an expansion chamber for homogenizing the gas pressure, and
- a trigger mechanism adapted to cause the compressed gas generating cartridge to generate the compressed gas,
- said bore having, at an axial distance from the projectile exit end, an entrance for the projectile and the compressed gas generating cartridge, a cartridge-receiving chamber proximate to the entrance, and a projectile-receiving chamber adjacent an anterior end of the cartridge-receiving chamber with respect to the direction of firing, the chambers accommodating, in a position of readiness to fire of the compressed gas weapon system, the cartridge in a position behind the projectile with respect to the direction of firing of the projectile,
- the projectile having with respect to the direction of firing an anterior end, a nose portion adjacent the anterior end, a posterior end and an apron portion adjacent the posterior end,
- the apron portion of the projectile having a diameter that is greater than the diameter of the nose portion and greater than the diameter of a part of the projectile-receiving chamber that receives the apron portion when the projectile is received in the projectile-receiving chamber so that the diameter of the apron portion of the projectile is reduced to caliber the projectile,
- the posterior end of the projectile having a cavity, and the cartridge having at its anterior end with respect to the direction of firing a tapered projection,
- the cavity of the projectile and the tapered projection of the cartridge being, in the position of readiness to fire, in mutual abutment over at least a part of their axial lengths by respective conical surfaces of the cavity and the projection,
- the tapered projection of the cartridge having a gas exit orifice opening, in the position of readiness to fire, into the cavity of the projectile, and
- the cartridge being formed at least partly of plastic so as to be expandable and having an outside diameter so matched to an inside diameter of the cartridge-receiving chamber that the cartridge can be smoothly introduced into the cartridge-receiving chamber, and can, under the action of the gas pressure building up in the expansion chamber, expand into gas-tight contact with an inner peripheral surface of the cartridge-receiving chamber.
8 more elements
A compressed gas weapon system comprising
- a firing mechanism having a bore with an axis and a projectile exit end and defined by at least one member,
- a projectile,
- a compressed gas generating cartridge for generating a compressed gas for providing a gas pressure for propelling the projectile axially of the bore in a direction of firing towards the projectile exit end,
- said bore having, at an axial distance from the projectile exit end, an entrance for the projectile and the compressed gas generating cartridge, a cartridge-receiving chamber proximate to the entrance, and a projectile-receiving chamber adjacent an anterior end of the cartridge-receiving chamber with respect to the direction of firing, the chambers accommodating, in a position of readiness to fire of the compressed gas weapon system, the cartridge in a position behind the projectile with respect to the direction of firing of the projectile,
- the projectile being insertable substantially without deformation into the cartridge-receiving chamber,
- the compressed gas generating cartridge during its insertion into the cartridge-receiving chamber transferring the projectile into the position of readiness to fire, the projectile being calibered during this transfer, and
- slide means displaceable back and forth in the axial direction of the bore for sliding the compressed gas generating cartridge from a position of readiness to load into a position of readiness to fire, said compressed gas generating cartridge in the position of readiness to fire holding the projectile in the position of readiness to fire,
- the slide means being operatively connected to a loading flap of the compressed gas weapon system in such manner that when the loading flap is opened in order to place the projectile in the cartridge-receiving chamber, the slide means is shifted away from the cartridge-receiving chamber, and when the loading flap is closed, the slide means is shifted towards the cartridge-receiving chamber.
5 more elements
A compressed gas weapon system comprising
- a firing mechanism having a bore with an axis and a projectile exit end and defined by at least one member,
- a projectile,
- a compressed gas generating cartridge for generating a compressed gas for providing a gas pressure for propelling the projectile axially of the bore in a direction of firing towards the projectile exit end,
- said bore having, at an axial distance from the projectile exit end, an entrance for the projectile and the compressed gas generating cartridge, a cartridge-receiving chamber proximate to the entrance, and a projectile-receiving chamber adjacent an anterior end of the cartridge-receiving chamber with respect to the direction of firing, the chambers accommodating, in a position of readiness to fire of the compressed gas weapon system, the cartridge in a position behind the projectile with respect to the direction of firing of the projectile,
- the projectile being insertable substantially without deformation into the cartridge-receiving chamber,
- the compressed gas generating cartridge during its insertion into the cartridge-receiving chamber transferring the projectile into the position of readiness to fire, the projectile being calibered during this transfer, and
- slide means displaceable back and forth in the axial direction of the bore for sliding the compressed gas generating cartridge out of a position of readiness to load into a position of readiness to fire, said compressed gas generating cartridge in the position of readiness to fire holding the projectile in the position of readiness to fire,
- the slide means including a hook element which upon opening of a loading flap of the compressed gas weapon system extracts a spent compressed gas generating cartridge from the cartridge-receiving chamber after a shot has been fired.
5 more elements
A compressed gas weapon system comprising
- a firing mechanism having a bore with an axis and a projectile exit end and defined by at least one member,
- a projectile,
- a compressed gas generating cartridge for generating a compressed gas for providing a gas pressure for propelling the projectile axially of the bore in a direction of firing towards the projectile exit end,
- said bore having, at an axial distance from the projectile exit end, an entrance for the projectile and the compressed gas generating cartridge, a cartridge-receiving chamber proximate to the entrance, and a projectile-receiving chamber adjacent an anterior end of the cartridge-receiving chamber with respect to the direction of firing, the chambers accommodating, in a position of readiness to fire of the compressed gas weapon system, the cartridge in a position behind the projectile with respect to the direction of firing of the projectile,
- the projectile being insertable substantially without deformation into the cartridge-receiving chamber,
- the compressed gas generating cartridge during its insertion into the cartridge-receiving chamber transferring the projectile into the position of readiness to fire, the projectile being calibered during this transfer, and
- a magazine receiving a plurality of the compressed gas generating cartridges, the magazine including a receptacle in which the compressed gas generating cartridges are received one behind another in a row aligned substantially parallel to the axis of the bore.
4 more elements
A compressed gas weapon system comprising
- a firing mechanism having a bore with an axis and a projectile exit end and defined by at least one member,
- a projectile,
- a compressed gas generating cartridge for generating a compressed gas for providing a gas pressure for propelling the projectile axially of the bore in a direction of firing towards the projectile exit end,
- said bore having, at an axial distance from the projectile exit end, an entrance for the projectile and the compressed gas generating cartridge, a cartridge-receiving chamber proximate to the entrance, and a projectile-receiving chamber adjacent an anterior end of the cartridge-receiving chamber with respect to the direction of firing, the chambers accommodating, in a position of readiness to fire of the compressed gas weapon system, the cartridge in a position behind the projectile with respect to the direction of firing of the projectile,
- the projectile being insertable substantially without deformation into the cartridge-receiving chamber,
- the compressed gas generating cartridge during its insertion into the cartridge-receiving chamber transferring the projectile into the position of readiness to fire, the projectile being calibered during this transfer,
- a passage branching off from the cartridge-receiving chamber, by way of which the cartridge-receiving chamber is in communication with the surroundings, and the compressed gas generating cartridge having a weakened area which, in the position of readiness to fire, faces the passage.
4 more elements
A compressed gas weapon system comprising
- a firing mechanism having a bore with an axis and a projectile exit end and defined by at least one member,
- a projectile,
- a compressed gas generating cartridge for generating a compressed gas for providing a gas pressure for propelling the projectile axially of the bore in a direction of firing towards the projectile exit end,
- said bore having, at an axial distance from the projectile exit end, an entrance for the projectile and the compressed gas generating cartridge, a cartridge-receiving chamber proximate to the entrance, and a projectile-receiving chamber adjacent an anterior end of the cartridge-receiving chamber with respect to the direction of firing, the chambers accommodating, in a position of readiness to fire of the compressed gas weapon system, the cartridge in a position behind the projectile with respect to the direction of firing of the projectile,
- the inside diameter of the cartridge-receiving chamber slightly exceeding the outside diameter of an apron portion of the projectile, which is the maximum diameter of the projectile, so that the projectile is smoothly insertable into the cartridge-receiving chamber,
- the inside diameter of the bore being substantially the same as the inside diameter of the cartridge-receiving chamber, and
- the outside diameter of the apron portion of the projectile being in such matched relationship to the inside diameter of the bore that when the projectile is pushed into the bore by the compressed gas generating cartridge, the outside diameter of the apron portion of the projectile is reduced.
4 more elements
A compressed gas weapon system comprising
- a firing mechanism having a bore with an axis and a projectile exit end and defined by at least one member,
- a projectile,
- a compressed gas generating cartridge for generating a compressed gas for providing a gas pressure for propelling the projectile axially of the bore in a direction of firing towards the projectile exit end,
- said bore having, at an axial distance from the projectile exit end, an entrance for the projectile and the compressed gas generating cartridge, a cartridge-receiving chamber proximate to the entrance, and a projectile-receiving chamber adjacent an anterior end of the cartridge-receiving chamber with respect to the direction of firing, the chambers accommodating, in a position of readiness to fire of the compressed gas weapon system, the cartridge in a position behind the projectile with respect to the direction of firing of the projectile,
- the projectile-receiving chamber of the bore having in a portion adjacent to the cartridge-receiving chamber a smooth cylindrical segment,
- the bore having lands and rifling grooves extending from the smooth cylindrical segment to the exit end,
- an end portion of the projectile anterior with respect to a direction of firing being, in the position of readiness to fire, received within the lands and rifling grooves, and
- a portion of the projectile posterior with respect to the direction of firing being received in the smooth cylindrical segment of the bore.
5 more elements
Dependencies are inferred from the claim text.