Bolt operation facility for autoloading firearm

Details Bolt operation facility for autoloading firearm Bolt operation facility for autoloading firearm

2006-09-28

2009-08-04

Hayes, Bret (Department: 3641)

Ordnance

Automatic

Breech block lock

C089S190000

Reexamination Certificate

active

07568422

ABSTRACT:
A semiautomatic rifle has a housing defining a housing axis and containing a bolt assembly that reciprocates along the housing axis. The bolt assembly has a bolt carrier and a bolt, which reciprocates axially with respect to the carrier. A barrel is connected to the housing, and has a rear portion having a locking chamber that removably receives part of the bolt. An arm element interconnects the bolt carrier and the bolt, and operates to extend the bolt in response to rearward movement of the bolt carrier within the housing. The arm may be pivotally connected to the bolt carrier. The bolt may include a rod external of the bolt carrier, having a rear end contacting the arm, and a forward end contacting the rear of the barrel.

REFERENCES:
patent: 2481548 (1949-09-01), Waltke, Jr.
patent: 2881547 (1959-04-01), Butler
patent: 2941449 (1960-06-01), Reed
patent: 2951424 (1960-09-01), Stoner
patent: 4154142 (1979-05-01), Schwegler
patent: 4358986 (1982-11-01), Giorgio
patent: 4655118 (1987-04-01), Bruderer et al.
patent: 4677897 (1987-07-01), Barrett
patent: 4867040 (1989-09-01), Barrett
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patent: 6182389 (2001-02-01), Lewis
patent: 6343536 (2002-02-01), Rossier et al.
patent: 6609319 (2003-08-01), Olson
patent: 6851346 (2005-02-01), Herring

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