Polymer ammunition and cartridge primer insert
First Claim
1. A primer insert for a polymer ammunition cartridge comprising:
- a top surface;
a bottom surface opposite the top surface;
a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises;
a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius is about 0.14 inches;
a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance is about 0.1 inches and a first segment angle from +6 to −
6 degrees from perpendicular to the top surface and the second segment has a second segment distance is about 0.1 inches, wherein the second segment has a second segment angle from +3 to −
3 degrees relative to the first segment angle;
a primer recess in the top surface that extends toward the bottom surface;
a primer flash aperture positioned in the primer recess through the bottom surface; and
a flash aperture groove in the primer recess and positioned around the primer flash aperture and adapted to receive a polymer overmolding through the primer flash aperture.
2 Assignments
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Accused Products
Abstract
The present invention provides a primer insert for a polymer ammunition cartridge comprising: a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface; wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises: a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius of from 0.1 to 0.2; a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance from 0.06 to 0.14 inches and the second segment has a second segment distance from 0.05 to 0.15 inches, wherein the second segment has a second segment angle from +3 to −3 degrees relative to the first segment angle and the first segment has a first segment angle from +6 to −6 degrees from perpendicular to the top surface; a primer recess in the top surface that extends toward the bottom surface; a primer flash aperture positioned in the primer recess through the bottom surface; and a flash aperture groove in the primer recess and positioned around the primer flash aperture and adapted to receive a polymer overmolding through the primer flash aperture.
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Citations
19 Claims
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1. A primer insert for a polymer ammunition cartridge comprising:
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a top surface; a bottom surface opposite the top surface; a coupling element that extends from the bottom surface, wherein the coupling element comprises an interior surface and an exterior surface, wherein the interior surface comprises;
a transition region that transitions from the bottom surface to a second segment wherein the transition region has a radius is about 0.14 inches;
a first segment extending from the second segment and terminates at a tip, wherein the first segment has a first segment distance is about 0.1 inches and a first segment angle from +6 to −
6 degrees from perpendicular to the top surface and the second segment has a second segment distance is about 0.1 inches, wherein the second segment has a second segment angle from +3 to −
3 degrees relative to the first segment angle;a primer recess in the top surface that extends toward the bottom surface; a primer flash aperture positioned in the primer recess through the bottom surface; and a flash aperture groove in the primer recess and positioned around the primer flash aperture and adapted to receive a polymer overmolding through the primer flash aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification