Drill bit for a down-the-hole drill hammer

Information

  • Patent Grant
  • D872142
  • Patent Number
    D872,142
  • Date Filed
    Wednesday, October 18, 2017
    7 years ago
  • Date Issued
    Tuesday, January 7, 2020
    5 years ago
  • Inventors
    • Lyon; Leland H. (Roanoke, VA, US)
  • Original Assignees
  • Examiners
    • Palasik; Patricia A
    Agents
    • Kim IP Law Group PLLC
  • US Classifications
    Field of Search
    • US
    • D08 6
    • D15 28
    • D15 131
    • D15 132
    • D15 138
    • D15 139
    • CPC
    • E21B10/36
    • E21B10/38
    • E21B10/46
    • E21B10/56
  • International Classifications
    • 1509
    • Term of Grant
      15Years
Abstract
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
  • The ornamental design for a drill bit for a down-the-hole drill hammer, as shown and described.
US Referenced Citations (21)
Number Name Date Kind
3918538 Bender Nov 1975 A
4073354 Rowley et al. Feb 1978 A
4323130 Dennis Apr 1982 A
4919221 Pascale Apr 1990 A
5890551 Liljebrand Apr 1999 A
6039127 Myers Mar 2000 A
6435288 Dobran Aug 2002 B1
D496948 Charland Oct 2004 S
7117939 Hawley Oct 2006 B1
7290626 Terlet Nov 2007 B2
D611512 Sundin Mar 2010 S
D611970 Sundin Mar 2010 S
D705827 Hammargren May 2014 S
D831714 Osterholm Oct 2018 S
20020153174 Linden Oct 2002 A1
20040040752 Brandenberg Mar 2004 A1
20060060389 Hadin Mar 2006 A1
20060162965 Hadin Jul 2006 A1
20070137900 Bjork Jun 2007 A1
20090321143 Lyon Dec 2009 A1
20110240373 Lyon et al. Oct 2011 A1
Continuation in Parts (1)
Number Date Country
Parent 14718673 May 2015 US
Child 29622653 US