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US 11,976,911 B2Granted
Polymer-based cartridge casing for subsonic ammunition
AssigneePCP Tactical, LLC
InventorsCharles Padgett, Robert Padgett
Life of this patent
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Abstract
A high strength polymer-based cartridge having a first end; a neck disposed at the first end and a shoulder disposed below the neck to form a bottleneck cartridge. A second end is opposite the first end and an insert is engaged to the second end. A propellant chamber is formed between the shoulder and the insert and has a volume. An extension extends from the neck opposite the shoulder and a cap is formed on the extension, partially sealing the propellant chamber.
Claims12
A high strength polymer-based blank cartridge comprising:
- a first end;
- a shoulder disposed approximate the first end;
- a second end opposite the first end;
- an insert engaged to the second end;
- a propellant chamber formed between the shoulder and the insert and having an unobstructed and a reduced volume;
- an extension extending from the shoulder opposite the insert;
- and
- a cap formed on the extension, partially sealing the propellant chamber, and elastically deforms when the cartridge is fired,
- the reduced volume is reduced in comparison to a propellant chamber of a standard cartridge.
6 more elements
A method of making a high strength polymer-based blank cartridge comprising the steps of:
- molding a cartridge from a polymer having a first end, a second end opposite the first end, and a shoulder;
- forming an insert engaged to the second end;
- forming an unobstructed and a reduced volume propellant chamber between the shoulder and the insert;
- forming an extension, extending from the shoulder, and opposite the insert;
- and
- forming a cap on the extension partially sealing the propellant chamber configured to elastically deform when the cartridge is fired.
3 more elements
Dependencies are inferred from the claim text.