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US Patent 7640689 Hand guard system for use with a firearm

Patent 7640689 was granted and assigned to Heckler & Koch on January, 2010 by the United States Patent and Trademark Office.

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Patent
Patent

Patent attributes

Current Assignee
Heckler & Koch
Heckler & Koch
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7640689
Date of Patent
January 5, 2010
Patent Application Number
12121516
Date Filed
May 15, 2008
Patent Citations Received
‌
US Patent 12135186 Free floating handguard anchoring system
0
0
Patent Primary Examiner
‌
Michael Carone
Patent abstract

A hand guard system for use with a firearm is described. A holding unit for releasably coupling the hand guard system to a firearm includes a coupling element having an opening, a flange, and at least one coupling portion. The flange and the coupling portion form the opening so that the coupling element is slidably removable about the barrel of the firearm, and an inner surface of the coupling portion engages an outer surface of the barrel nut. The holding unit further includes a sleeve operatively coupled to the coupling element having an inner surface defining an opening so that the sleeve is slidably removable about the barrel of the firearm and the inner surface forms a shoulder and defines a groove distally located from the shoulder and sized to receive a snap ring. The snap ring retains the sleeve to the coupling element such that the shoulder and snap ring are located on opposite sides of the flange of the coupling element. The holding unit further includes a biasing member disposed between the flange and the shoulder of the sleeve to bias the sleeve away from the flange along a longitudinal axis of the barrel. The biasing member enables the sleeve to move between a first position and a second position relative to the coupling element.

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