Primer insert for a polymer ammunition cartridge casing
AssigneeTrue Velocity, Inc.
InventorLonnie Burrow
Life of this patent
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Abstract
The present invention includes a metal primer insert for a polymeric ammunition cartridge having a top surface opposite a bottom surface and a substantially cylindrical coupling element that extends from the bottom surface, a primer recess in the top surface that extends toward the bottom surface, a primer flash aperture positioned in the primer recess to extend through the bottom surface, and a flange that extends circumferentially about an outer edge of the top surface, wherein the flange is adapted to receive a polymer overmolding that covers an circumferential surface and the primer flash aperture to form a primer flash hole.
Claims2
A metal primer insert for a polymeric ammunition cartridge comprising:
- a top surface opposite a bottom surface and a flange that extends circumferentially about an outer edge of the top surface;
- a substantially cylindrical coupling element that extends from the bottom surface, wherein the substantially cylindrical coupling element is adapted to receive a polymer overmolding;
- a primer recess in the top surface that extends toward the bottom surface;
- a primer flash aperture in the primer recess that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole;
- and
- a groove in the primer recess positioned around the primer flash aperture adapted to receive a polymer overmolding through the primer flash aperture.
Dependencies are inferred from the claim text.