US 10,480,876 B2Granted

Adjustable gas block for an indirect gas operated firearm

AssigneeLWRC International LLC

InventorJesus S. Gomez

Life of this patent

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Abstract

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas.

Claims10

Dependent claims

An adjustable gas block for an indirect gas operated firearm, wherein the adjustable gas block comprises:

a nozzle comprising a forward end, middle portion and back end, and wherein said nozzle comprises a plurality of ports spaced about a middle portion of the nozzle, and wherein each of said plurality of ports can be selectively placed into communication with a barrel gas port of said firearm;
a gas block housing having a barrel receiving channel, and a cylindrical bore with a port, wherein said cylindrical bore receives said gas nozzle, and wherein said gas block housing comprises a groove formed therein to receive a rotatable knob, said groove running transverse to an axis of a barrel of said firearm and between a forward end of said cylindrical bore and a generally planar, rearwardly facing portion of said gas block housing;
and
a rotatable knob that receives and rotates the nozzle within said cylindrical bore, and said knob is removably retained by a spring loaded detent and ball, and said spring and detent work in conjunction with a series of notches present on said knob to prevent unintentional rotation of said knob, and said spring provides a force to said ball which interacts with said notches.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/043,121Filed 23 Jul 2018 · continuation
Priority: 28 Jul 2008
Published: US 2019/0212084 A111 Jul 2019
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F41A 5/28
Arrangements or systems for bleeding the gas from the barrel: adjustable systems
F41G 1/02
Sighting devices: foresights
F41A
Functional features or details common to both smallarms and ordnance
F41G
Weapon sights

Family

Application12/220,725Parent of this continuation · filed 28 Jul 2008
Application12/929,928Parent of this continuation · filed 24 Feb 2011
Application14/291,455Parent of this continuation · filed 30 May 2014
US 8,875,614 B2Parent of this continuation · filed 4 Nov 2014
Application14/920,668Parent of this continuation · filed 22 Oct 2015
US 9,170,061 B2Parent of this continuation · filed 27 Oct 2015
Application15/243,707Parent of this continuation · filed 22 Aug 2016
US 9,423,197 B2Parent of this continuation · filed 23 Aug 2016
US 2019/0212084 A1Pre-grant publication · published 11 Jul 2019
US 10,030,922 B2Parent of this continuation
US 2012/0167757 A1Published application
US 2014/0260947 A1Published application
US 2016/0109200 A1Published application
US 2017/0198998 A1Published application
US 8,752,473 B2Related patent
US 10,480,876 B2This patent

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

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