Two-piece primer insert for polymer ammunition
First Claim
1. A two piece primer insert for ammunition comprising:
- an upper primer insert portion comprising;
an upper primer bottom surface opposite an upper primer top surface,a substantially cylindrical coupling element extending away from the upper primer bottom surface,a primer flash aperture penetrating the upper primer bottom surface, anda primer flash aperture groove positioned in the upper primer top surface around the primer flash aperture configured to receive a polymer overmolding through the primer flash aperture;
a lower primer insert portion comprising;
a lower primer bottom surface opposite a lower primer top surface, anda primer recess in the lower primer top surface that extends toward the lower primer bottom surface and adapted to fit a primer, andan insert joint that links the upper primer top surface and the lower primer bottom surface to align the primer flash aperture and the primer recess to form a primer insert.
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Accused Products
Abstract
The present invention provides a multi piece primer insert for ammunition comprising: an upper primer insert portion comprising an upper primer aperture through an upper primer bottom surface; a substantially cylindrical coupling element extending away from the upper primer bottom surface, and an interior surface; a lower primer insert portion comprising a lower primer bottom surface opposite a lower primer top surface, a primer recess in the lower primer top surface adapted to fit a primer, a lower primer aperture through the lower primer bottom surface, and a flange that adapted to receive a polymer overmolding extends circumferentially about an outer edge of the lower primer top surface; and an insert joint that links the upper primer bottom surface and the lower primer bottom surface to form a primer insert.
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Citations
11 Claims
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1. A two piece primer insert for ammunition comprising:
an upper primer insert portion comprising; an upper primer bottom surface opposite an upper primer top surface, a substantially cylindrical coupling element extending away from the upper primer bottom surface, a primer flash aperture penetrating the upper primer bottom surface, and a primer flash aperture groove positioned in the upper primer top surface around the primer flash aperture configured to receive a polymer overmolding through the primer flash aperture; a lower primer insert portion comprising; a lower primer bottom surface opposite a lower primer top surface, and a primer recess in the lower primer top surface that extends toward the lower primer bottom surface and adapted to fit a primer, and an insert joint that links the upper primer top surface and the lower primer bottom surface to align the primer flash aperture and the primer recess to form a primer insert. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
Specification