Back to results
US 9,683,818 B2Granted
Polymer-based composite casings and ammunition containing the same, and methods of making and using the same
AssigneePolyCase Ammunition, LLC
InventorsPaul Lemke, Juan Carlos Marin
Life of this patent
Estimating the term…
Abstract
Polymer-based composite casings and ammunition containing the same are disclosed. Methods of making and using polymer-based composite casings and ammunition containing the same are also disclosed.
Claims23
A composite ammunition casing comprising:
- a single continuous polymer wrap;
- and
- a metal bushing embedded within said single continuous polymer wrap, said metal bushing comprising a bushing channel that connects a primer housing section of said metal bushing to a powder chamber of said composite casing;
- wherein (1) said single continuous polymer wrap (i) extends a complete length of said composite casing totally embedding said metal bushing therein or, (2) said single continuous polymer wrap does not come into contact with said bushing channel, and (3) an end surface of said metal bushing is exposed along one end of said composite casing, and (4) said end surface of said metal bushing and an end surface of said single continuous polymer wrap form at least a portion of an end surface of said composite casing.
1 more element
A composite ammunition casing comprising:
- a single continuous polymer wrap;
- and
- a metal bushing embedded within said single continuous polymer wrap, said metal bushing comprising a bushing channel that connects a primer housing section of said metal bushing to a powder chamber of said composite casing:
- wherein (1) said single continuous polymer wrap (i) extends a complete length of said composite casing totally embedding said metal bushing therein or, (2) said single continuous polymer wrap does not come into contact with said bushing channel (3) an end surface of said metal bushing is exposed along one end of said composite casing, and (4) said single continuous polymer wrap comprises an extraction rim along an outer surface of said single continuous polymer wrap.
1 more element
A composite ammunition casing comprising:
- a single continuous polymer wrap;
- and
- a metal bushing embedded within said single continuous polymer wrap, said metal bushing comprising a bushing channel that connects a primer housing section of said metal bushing to a powder chamber of said composite casing:
- wherein (1) said single continuous polymer wrap (i) extends a complete length of said composite casing totally embedding said metal bushing therein or, (2) said single continuous polymer wrap does not come into contact with said bushing channel (3) an end surface of said metal bushing is exposed along one end of said composite casing, and (4) said single continuous polymer wrap comprises an overlapping polymer section at a first end thereof, said overlapping polymer section having an opening sized to accept a projectile therein, wherein said overlapping polymer section has (i) an upper rim extending along said opening, and (ii) a vertically-extending inner surface extending along a projectile section inner surface portion, said vertically-extending inner surface ending at a horizontally-extending inner surface of said single continuous polymer wrap.
1 more element
Dependencies are inferred from the claim text.