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United States Patent D783,762
Larson, Jr. April 11, 2017

Muzzle brake


CLAIM The ornamental design for a muzzle brake, as shown and described.
Inventors: Larson, Jr.; Lester C. (Colona, IL)
Name City State Country Type

Rock River Arms, Inc.



Assignee: Rock River Arms, Inc. (Colona, IL)
Appl. No.: D/551,773
Filed: January 15, 2016

Current U.S. Class: D22/108
Current International Class: 2201
Field of Search: ;D22/108 ;D21/572-573 ;89/14.05,14.1-14.8 ;42/8-12,44,63-64,75.01-75.04,76.01,76.02-76.1 ;433/159,173

References Cited [Referenced By]

U.S. Patent Documents
D279812 July 1985 Cellini
4716809 January 1988 A'Costa
4742776 May 1988 Scuto
D488715 April 2004 Plumer
D605724 December 2009 Heath
D647588 October 2011 Heath
9182187 November 2015 Griffith
D746937 January 2016 Larson, Jr.
D747429 January 2016 Larson, Jr.
9261319 February 2016 Palu
2007/0094912 May 2007 Bender
2008/0094063 April 2008 Renz
2011/0252952 October 2011 McNeill
2012/0180352 July 2012 Addis
2014/0237881 August 2014 Mack
2015/0300796 October 2015 Geswender
2015/0323275 November 2015 Lessard
2015/0377577 December 2015 Pappas
2016/0138898 May 2016 Schultz
2016/0169606 June 2016 Joplin

Other References

RRA Helical Tactical Muzzle Brake, Rock River Arms, [online], [site visited Oct. 3, 2016]. <URL: http://www.rockriverarms.com/index.cfm?fuseaction=category.display&catego- ry.sub.--id=276>. cited by examiner .
A2 Style Birdcage Black Steel Muzzle Brake 1/2.times.28 Threaded .223 5.56 223 556, Terapeak.com, [online], [site visited Oct. 3, 2016]. <URL: http://www.terapeak.com/worth/a2-style-birdcage-black-steel-muzzle-brake-- 1-2x28-threaded-223-5-56-223-556/281739556436/>. cited by examiner .
Radical Firearms SpitFire Muzzle Brake--1/2.times.28, PrimaryArms.com, [online], [site visited Oct. 3, 2016]. <URL: http://www.primaryarms.com/rfsf-556/p/rfsf-556/>. cited by examiner .
Diamondhead USA T-Brake Muzzle Brake--5.56, PrimaryArms.com, [online], [site visited Oct. 3, 2016]. <URL: http://www.primaryarms.com/3205/p/3205/>. cited by examiner .
Wilson Combat--AR-15 Muzzle Brake Q-Comp, Brownells, [online], [site visited]. <URL: http://www.brownells.com/rifle-parts/muzzle-devices/compensators-amp-muzz- le-brakes/ar-15-muzzle-brake-q-comp-prod88019.aspx>. cited by examiner .
AR-Stoner Heli-Port Muzzle Brake 0.765''-20 Thread AR-15 50 Caliber, MidwayUSA, [online], [site visited Oct. 3, 2016]. <URL: http://www.midwayusa.com/product/2228238134/ar-stoner-heli-port-muzzle-br- ake-0765-20-thread-ar-15-50-caliber>. cited by examiner.

Primary Examiner: Nelson; T. Chase
Assistant Examiner: Han; Jonathan J
Attorney, Agent or Firm: Banner & Witcoff, Ltd.


FIG. 1 is a top, front, left perspective view of a muzzle brake showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof; and,

FIG. 5 is a top view thereof.

The uneven-length broken line within the shaded area in FIGS. 1 and 3-5 correspond to an unclaimed feature. The broken lines immediately adjacent to the shaded area represent unclaimed boundaries of the claimed design. The even-length broken lines showing the remainder of the muzzle brake are for environmental purposes only and form no part of the claimed design.

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