US 8,800,192 B2Granted

Debris shield for a firearm

AssigneeAdcor Industries, Inc.

InventorMichael J. Brown

Life of this patent

Estimating the term…

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Abstract

The present invention provides for a firearm having a receiver defining a bore with the receiver extending along a longitudinal axis. The receiver defines an ejection port transverse to the longitudinal axis with the bore defining an inner surface. The firearm further includes a bolt carrier disposed in the bore and moveable relative to the receiver along the longitudinal axis between a firing position and a rearward position. The firearm also includes a shield longitudinally affixed to the bolt carrier and movable with the bolt carrier as a unit between the firing and rearward positions along the longitudinal axis with the shield blocking the ejection port when in the firing position and the shield sliding along the inner surface away from the ejection port when moving to the rearward position in conjunction with the bolt carrier.

Claims12

Dependent claims

A breech block mechanism for a firearm, said mechanism comprising:

a bolt carrier defining a hole extending along a bolt axis and moveable between an initial position and a mid position;
a bolt disposed in said hole and movable along said bolt axis between a first position and a second position during movement of said bolt carrier between said initial and mid positions;
and
a shield longitudinally affixed to said bolt carrier and moving with said bolt carrier as a unit along said bolt axis during movement between said initial and mid positions while said bolt moves between said first and second positions such that said shield is immovable relative to said bolt carrier along said bolt axis during said movement of said bolt carrier between said initial and mid positions, wherein said shield is configured to block an ejection port in a receiver of the firearm when said bolt carrier is in the initial position.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/796,964Filed 12 Mar 2013 · division
Priority: 1 Jul 2008
Published: US 2014/0026457 A130 Jan 2014
Granted: 12 Aug 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F41A 35/00
Accessories or details not otherwise provided for
F41A 3/12
Breech mechanisms, e.g. locks: bolt action, i.e. the main breech opening movement being parallel to the barrel axis
F41A 3/66
Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings: breech housings or frames; Receivers
F41A 5/18
Mechanisms or systems operated by propellant charge energy for automatically opening the lock: gas-operated

Family

Application61/133,624Us provisional application · filed 1 Jul 2008
Application61/211,228Us provisional application · filed 27 Mar 2009
Application12/496,030Parent of this division · filed 1 Jul 2009
US 8,393,103 B2Parent of this division · filed 12 Mar 2012
US 2014/0026457 A1Pre-grant publication · published 30 Jan 2014
US 2010/0000139 A1Published application
US 8,800,192 B2This patent

From the US filing history. Foreign family members aren’t listed.