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US 7,458,322 B2Granted
Cartridge for a firearm
AssigneeMark A. Westrom
InventorsS. Paul Reynolds, George L. Reynolds
Life of this patent
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Abstract
A cartridge for firearms includes a bullet connected to a casing. The casing includes a cylindrical wall that extends to an end member opposite the bullet, a hollow interior formed by the wall and the end member, and a receptacle for receiving a priming composition. Anvils or projections are provided in the casing to compress the priming composition between the end member and the projection or anvil with a firing pin engaging the end member. Propellant in the hollow interior is ignited by the compressed priming composition.
Claims29
A firearm cartridge, comprising a casing, the casing comprising:
- a generally cylindrical wall extending between a forward end and an opposite rearward end member about a central axis;
- an interior volume formed by said wall and said end member;
- said end member including a rearwardly facing outer end surface at a rearward end thereof and a receptacle formed in said end member, said receptacle opening at said outer end surface and extending forwardly into said end member to a forward end wall, said forward end wall of said receptacle being integral with said end member;
- an anvil projecting from said casing;
- a primer recess, defined at least in part by said anvil;
- a priming composition in said prime recess and adjacent said anvil;
- and
- a flange located completely rearward of said recess wherein said anvil and said end member are unitarily composed of a single piece.
5 more elements
Dependencies are inferred from the claim text.