US 11,656,044 B2
Adjustable gas block for an indirect gas operated firearm
Jesus S. Gomez, Trappe, MD (US)
Assigned to LWRC International LLC, Cambridge, MD (US)
Filed by LWRC International LLC, Cambridge, MD (US)
Filed on Jun. 8, 2021, as Appl. No. 17/342,188.
Application 17/342,188 is a continuation of application No. 16/653,590, filed on Oct. 15, 2019, granted, now 11,029,107.
Application 16/653,590 is a continuation of application No. 16/043,121, filed on Jul. 23, 2018, granted, now 10,480,876, issued on Nov. 19, 2019.
Application 16/043,121 is a continuation of application No. 15/243,707, filed on Aug. 22, 2016, granted, now 10,030,922, issued on Jul. 24, 2018.
Application 15/243,707 is a continuation of application No. 14/920,668, filed on Oct. 22, 2015, granted, now 9,423,197, issued on Aug. 23, 2016.
Application 14/920,668 is a continuation of application No. 14/291,455, filed on May 30, 2014, granted, now 9,170,061, issued on Oct. 27, 2015.
Application 14/291,455 is a continuation of application No. 12/929,928, filed on Feb. 24, 2011, granted, now 8,875,614, issued on Nov. 4, 2014.
Application 12/929,928 is a continuation of application No. 12/220,725, filed on Jul. 28, 2008, abandoned.
Prior Publication US 2022/0099394 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F41A 5/28 (2006.01); F41G 1/02 (2006.01)
CPC F41A 5/28 (2013.01) [F41G 1/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An adjustable gas block for a firearm, the adjustable gas block comprising:
a gas block housing having a barrel receiving channel, and a cylindrical bore with a port in communication with the barrel receiving channel;
a nozzle, wherein a part of the nozzle is received in the cylindrical bore, wherein the nozzle comprises a plurality of ports spaced about the part of the nozzle received in the cylindrical bore; and
a rotatable knob coupled to the nozzle, wherein the rotatable knob retains the nozzle within the cylindrical bore of the gas block housing and controls rotational movement of the nozzle within the cylindrical bore of the gas block housing, wherein manipulation of the rotatable knob with respect to the gas block housing rotates the nozzle within the cylindrical bore and selectively places a port of the plurality of ports of the nozzle in communication with the port of the cylindrical bore, and wherein the rotatable knob includes a series of notches, and the gas block housing includes a spring loaded detent and ball, and wherein the spring provides a force to the ball which works in conjunction with the series of notches on the rotatable knob to selectively place the port of the plurality of ports of the nozzle in communication with the port of the cylindrical bore.