Firearm apparatus and method
OwnerLeonid Rozhkov, Igor Rozhkovinventors
Life of this patent
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Abstract
A firearm apparatus and a method of firing ammunition therefrom, where the method utilizes a barrel (12) having a breech end surface (40) and immovably affixed to frame (10), a stand pressure surface (32), and a cartridge container (16) with a cartridge case (26) therein and countermass main body (18) movable in opposite directions. Gas from a deflagrating propellant moves the movable members and applies directionally opposite forces upon the breech end surface (40) and the stand pressure surface (32), which results in the force cancellation and ensures that the barrel (12) remains stable during firing. This solves the problem of the angle of departure and contributes to a high accuracy of shooting.
Claims34
An apparatus for firing ammunition, the ammunition comprising a cartridge case and a projectile, said apparatus comprising:
- a frame;
- a barrel immovably affixed to said frame and having:
- an axis;
- and
- a muzzle end and a breech end defining a breech end surface;
- a cartridge container, movable axially in relation to said barrel, for receiving therein at least a portion of the cartridge case, said cartridge container having a working surface;
- a stand member, immovable in relation to said frame, comprising a stand pressure surface;
- and
- wherein during firing of the ammunition, a chamber is defined in part by said breech end surface, said working surface, and said stand pressure surface;
- and
- wherein during firing of the ammunition, gases expand in said chamber to move the projectile forward to exit said muzzle end and to move said cartridge case and cartridge container axially backward in a direction substantially opposite the direction of projectile movement;
- and
- further wherein during firing, gas pressure in said chamber applies oppositely directed net axial forces upon said apparatus, cartridge case, and projectile.
A method of operating an apparatus for firing ammunition comprising the steps of:
- providing the firearm apparatus comprising:
- a frame;
- a barrel immovably affixed to said frame and having:
- an axis;
- and
- a muzzle end and a breech end defining a breech end surface;
- a cartridge container, movable axially in relation to said barrel, for receiving therein at least a portion of the cartridge case, said cartridge container having a working surface;
- a stand member, immovable in relation to said frame, comprising a stand pressure surface;
- providing ammunition comprising a projectile and a cartridge case;
- loading the ammunition in the firearm apparatus so that at least a portion of the cartridge case resides in the cartridge container;
- defining a chamber during firing in part by the breech end surface, working surface, and stand pressure surface;
- permitting gases to expand in the chamber to move the projectile forward to exit the muzzle end and to move the cartridge case and cartridge container backward in a direction substantially opposite the direction of projectile movement;
- and
- wherein during firing, gas pressure in the chamber applies oppositely directed net axial forces upon the apparatus, cartridge case, and projectile.
An apparatus for firing ammunition, the ammunition having a cartridge case and a projectile, said apparatus comprising:
- a frame;
- a barrel immovably affixed to said frame and having:
- an axis;
- and
- a muzzle end and a breech end defining a breech end surface;
- a cartridge container, movable axially in relation to said barrel, for receiving therein at least a portion of the cartridge case, said cartridge container having a working surface;
- a stand member, immovable in relation to said frame, comprising a stand pressure surface;
- a loader disposed backward of said cartridge container for reciprocating axial movement in relation to said frame;
- a loader return spring means for urging said loader toward said cartridge container;
- and
- a back wall means on said frame for stopping backward axial movement of said loader;
- wherein during firing of the ammunition, a chamber is defined in part by said breech end surface, said working surface, and said stand pressure surface;
- wherein during firing of the ammunition, gases expand in said chamber to move the projectile forward to exit said muzzle end, and said cartridge case and cartridge container move axially backward in a direction substantially opposite the direction of projectile movement;
- and
- wherein during firing, gas pressure in said chamber applies oppositely directed net axial forces upon said apparatus, cartridge case, and projectile;
- and
- further wherein during firing, said loader receives momentum from the backward movement of said cartridge container, causing said loader to move backward against said loader return spring means until said loader is stopped by said back wall means.
Dependencies are inferred from the claim text.