The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2020
Filed:
Mar. 07, 2017
U.s. Army Research Laboratory, Adelphi, MD (US);
Alex Michlin, Whiteford, MD (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A system for reducing an extraction force required for removing a spent munition cartridge case from a weapon after firing, the system including a chamber; and a plurality of movable components in the chamber that are configured to radially expand with a corresponding expansion of a fired munition cartridge case, wherein radial expansion of the plurality of movable components causes a rearward force on the plurality of movable components and the spent munition cartridge case. The chamber may include a tapered wall, and the plurality of movable components may matingly align with the tapered wall. The plurality of movable components may align with one another. Each movable component may include a tapered outer surface comprising an angle greater than an angle of an outer surface of a pre-fired cartridge case.