Drill bit for a down-the-hole drill hammer

Description

FIG. 1 is a perspective view of a drill bit in accordance with the new design;

FIG. 2 is a bottom plan view of the drill bit of FIG. 1;

FIG. 3 is a right side elevation view of the drill bit of FIG. 1;

FIG. 4 is a front side elevation view of the drill bit of FIG. 1;

FIG. 5 is a left side elevation view of the drill bit of FIG. 1; and,

FIG. 6 is a rear side elevation view of the drill bit of FIG. 1.

The broken lines in FIGS. 1-6 illustrate portions of the drill bit which form no part of the claimed design.

Claims

CLAIM The ornamental design for a drill bit for a down-the-hole drill hammer, as shown and described.

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Inventors:	Lyon; Leland H. (Roanoke, VA)
Applicant:	Name City State Country Type Center Rock Inc. Berlin PA US
Assignee:	Center Rock Inc. (Berlin, PA)
Appl. No.:	D/622,653
Filed:	October 18, 2017

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Related U.S. Patent Documents

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	Application Number	Filing Date	Patent Number	Issue Date
	14718673	May 21, 2015	9821422

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Current U.S. Class:	D15/139
Current International Class:	1509
Field of Search:	;D8/6 ;D15/28,131,132,138,139

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References Cited [Referenced By]

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U.S. Patent Documents

3918538	November 1975	Bender
4073354	February 1978	Rowley et al.
4323130	April 1982	Dennis
4919221	April 1990	Pascale
5890551	April 1999	Liljebrand
6039127	March 2000	Myers
6435288	August 2002	Dobran
D496948	October 2004	Charland
7117939	October 2006	Hawley
7290626	November 2007	Terlet
D611512	March 2010	Sundin
D611970	March 2010	Sundin
D705827	May 2014	Hammargren
D831714	October 2018	Osterholm
2002/0153174	October 2002	Linden
2004/0040752	March 2004	Brandenberg
2006/0060389	March 2006	Hadin
2006/0162965	July 2006	Hadin
2007/0137900	June 2007	Bjork
2009/0321143	December 2009	Lyon
2011/0240373	October 2011	Lyon et al.

Primary Examiner: Palasik; Patricia A
Attorney, Agent or Firm: Kim IP Law Group PLLC

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