LIGHTWEIGHT POLYMER AMMUNITION CARTRIDGE CASINGS
First Claim
1. A polymeric ammunition cartridge comprising:
- a substantially cylindrical insert comprisinga 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 hole positioned in the primer recess to extend through the bottom surface, anda flange that extends circumferentially about an outer edge of the top surface; and
a substantially cylindrical polymeric middle body comprisinga substantially cylindrical polymeric bullet-end anda substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers an circumferential surface of the primer flash hole.
8 Assignments
0 Petitions
Accused Products
Abstract
One embodiment of the present invention provides a polymeric ammunition cartridge and methods of making and using the same. The cartridge includes a substantially cylindrical insert connected to a substantially cylindrical polymeric middle body. The substantially cylindrical insert includes 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 hole 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. The substantially cylindrical polymeric middle body includes a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers a circumferential surface of the primer flash hole.
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Citations
23 Claims
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1. A polymeric ammunition cartridge comprising:
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a substantially cylindrical insert comprising 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 hole 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; and a substantially cylindrical polymeric middle body comprising a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers an circumferential surface of the primer flash hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A polymeric ammunition cartridge having a diffuser comprising:
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a substantially cylindrical insert comprising 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 hole 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; a diffuser positioned in the primer recess comprising a diffuser flash hole aligned with the primer flash hole; and a substantially cylindrical polymeric middle body comprising a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers an circumferential surface of the primer flash hole. - View Dependent Claims (17)
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18. A polymeric ammunition cartridge comprising:
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a substantially cylindrical insert comprising 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 hole 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; a substantially cylindrical polymeric middle body comprising a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber, wherein the substantially cylindrical polymeric coupling end extends over the substantially cylindrical coupling element and covers an circumferential surface of the primer flash hole; and a substantially cylindrical polymeric bullet-end upper portion comprising a bullet-end coupling element connected to the substantially cylindrical polymeric bullet-end and a forward opening end to engage a bullet. - View Dependent Claims (19)
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20. A metal insert for a polymeric ammunition cartridge comprising:
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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 hole 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. - View Dependent Claims (21)
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22. A method of forming a polymeric ammunition cartridge comprising the steps of:
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providing a substantially cylindrical insert comprising 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 hole 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 forming a substantially cylindrical polymeric middle body comprising a substantially cylindrical polymeric bullet-end and a substantially cylindrical polymeric coupling end connected by a powder chamber; connecting the substantially cylindrical polymeric coupling end to the substantially cylindrical coupling element; and covering circumferentially an interior surface of the primer flash hole. - View Dependent Claims (23)
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Specification