Gas bleed assemblies for use with firearms

US7621210B2 · kind B2 · utility

Assignee

• HECKLER & KOCH GmbH · DE

Inventors

• Norbet Fluhr · Obermoschel, DE
• Berthold Weichert · Camburg, DE
• Stefan Doll · Obermoschel, DE
• Ernst Wössner · Sulz, DE
• Martin Stussak · Obermoschel, DE

Key dates

• Filing date: Jun 20, 2008
• Grant date: Nov 24, 2009
• Expiry date: Jun 20, 2028

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F41A5/28
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Gas bleed assemblies for use with firearms are described. An example gas bleed assembly for use with a firearm having a barrel includes a gas cylinder that defines at least one gas outlet to be fluidly coupled to a bore of a barrel. The gas cylinder is substantially fixed relative to the barrel. Additionally the example gas bleed assembly includes a holding fixture that is substantially fixed relative to a housing having a front edge. The holding fixture interacts with the at least one gas outlet. A temperature induced variation of geometry of the barrel changes a position of the gas cylinder relative to the holding fixture and wherein a pressure acting within the gas cylinder is associated with the position of the at least one gas outlet relative to the holding fixture.