Primer insert having a primer pocket groove
First Claim
1. A primer insert for use in a polymeric ammunition cartridge comprising:
- a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface;
a coupling element that extends from the bottom surface, wherein the coupling element is adapted to receive a polymer overmolding;
a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall;
a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and
one or more pads formed in the recess bottom;
a groove in the primer recess positioned around the primer flash aperture to extend at least partially over the recess bottom and adapted to receive the polymer overmolding.
3 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a primer insert for use in a polymeric ammunition cartridge includes atop surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a 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, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and one or more pads positioned on the recess bottom; a groove in the primer recess positioned around the primer flash aperture to extend at least partially over the recess bottom and adapted to receive a polymer overmolding.
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Citations
14 Claims
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1. A primer insert for use in a polymeric ammunition cartridge comprising:
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a top surface opposite a bottom surface and a extraction flange that extends circumferentially about an outer edge of the top surface; a coupling element that extends from the bottom surface, wherein the coupling element is adapted to receive a polymer overmolding; a primer recess in the top surface that extends toward the bottom surface, wherein the primer recess comprises a recess bottom and a circular recess side wall; a primer flash aperture through the recess bottom that extends through the bottom surface, wherein the primer flash aperture is adapted to receive a polymer overmolding to form a flash hole; and one or more pads formed in the recess bottom; a groove in the primer recess positioned around the primer flash aperture to extend at least partially over the recess bottom and adapted to receive the polymer overmolding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification