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Polymer-based composite casings and ammunition containing the same, and methods of making and using the same

  • US 9,683,818 B2
  • Filed: 12/21/2012
  • Issued: 06/20/2017
  • Est. Priority Date: 12/22/2011
  • Status: Active Grant
First Claim
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1. 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.

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