Ring fire primer
AssigneeGeneral Dynamics Ordnance and Tactical Systems - Canada, Inc.
InventorsSylvain Dionne, Pierre Duchesne, Eric Toutant
Life of this patent
Estimating the term…
Abstract
An ammunition primer assembly is provided that includes, but is not limited to a cup having a base and a sidewall, a priming composition located in the cup and disposed on the base, an anvil located in the cup an upper surface, a lower surface and a side surface abutting the sidewall. The anvil defining a central channel formed therethrough. A portion of the base of the cup forms a striking surface. The striking surface is adjacent to a portion of the primer composition that is adjacent to the lower surface of the anvil. The striking surface is offset from a center of the cup.
Claims18
An ammunition primer assembly comprising:
- a cup having a base and a sidewall;
- a priming composition located in said cup and disposed on said base;
- an anvil located in said cup, said anvil having an upper surface, a lower surface and a side surface abutting said sidewall, said anvil defining a central channel formed therethrough;
- a longitudinal axis extending through a center of said base, said priming composition, and said central channel;
- a striking surface defined as a portion of the base, said striking surface adjacent to a portion of said priming composition that is interposed between the lower surface of said anvil and the cup, said striking surface offset from a center of said base such that, when a central area of the base that intersects with said longitudinal axis and is surrounded by said striking surface is struck, the priming composition is not activated, and such that when the striking surface is struck the priming composition is activated.
An ammunition cartridge comprising:
- an ammunition primer assembly including:
- a cup having a base and a sidewall;
- a priming composition located in said cup and disposed on said base;
- an anvil located in said cup, said anvil having an upper surface, a lower surface and a side surface abutting said sidewall, said anvil defining a central channel formed therethrough;
- a longitudinal axis extending through a center of said base, said priming composition, and said central channel;
- wherein a portion of the base of the cup forms a striking surface, said striking surface being adjacent to a portion of said priming composition that is sandwiched between the lower surface of said anvil and the cup, said striking surface being offset from a center of said base such that, when a central area of the base that intersects with said longitudinal axis and is surrounded by said striking surface is struck, the priming composition is not activated, and such that when the striking surface is struck the priming composition is activated;
- a casing assembly configured to incorporate the ammunition primer assembly;
- and
- a propellant disposed within the casing assembly adjacent to the ammunition primer assembly.
Dependencies are inferred from the claim text.