Rock drilling tool with ovate cutters

Description

FIG. 1 is a top plan view of a rock drilling tool with ovate cutters embodying the invention.

FIG. 2 is side elevational view of the FIG. 1 embodiment, the opposite side being a mirror image.

FIG. 3 is another side elevational view of the FIG. 1 embodiment, as rotated 90.degree. from the FIG. 2 view, and the opposite side thereof being a mirror image.

FIG. 4 is a perspective view of the rock drilling tool with ovate cutters of FIG. 1.

FIG. 5 is a top plan view of a second embodiment of a rock drilling tool with ovate cutters embodying the invention.

FIG. 6 is a side elevational view of the FIG. 5 embodiment, the opposite side being a mirror image.

FIG. 7 is another side elevational view of the second embodiment, as rotated 90.degree. from the FIG. 6 view, and the opposite side being a mirror image.

FIG. 8 is a perspective view of the rock drilling tool with ovate cutters of FIG. 5.

FIG. 9 is a top plan view of a third embodiment of a rock drilling tool embodying the invention.

FIG. 10 is a side elevational view of the FIG. 9 embodiment, the opposite side being a mirror image.

FIG. 11 is another side elevational view of the third embodiment, as rotated 90.degree. from the FIG. 10 view, and the opposite side being a mirror image; and,

FIG. 12 is a perspective view of the rock drilling tool with ovate cutters of FIG. 9.

The representation of the fragmentary mounting base of the rock drilling tool is shown in phantom lines for environmental purposes only and is non-limiting upon the scope of the invention.

The broken line showing of the mounting base is for illustrative purposes only and forms no part of the claimed design.

Claims

CLAIM The ornamental design for a rock drilling tool with ovate cutters, as shown and described.

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Inventors:	Brady; William J. (Creve Coeur, MO)
Assignee:	The William J. Brady Loving Trust (N/A)
Appl. No.:	D/208,920
Filed:	July 8, 2004

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Current U.S. Class:	D15/21; D15/139
Current International Class:	1503
Field of Search:	;D15/21,139 ;175/377,378,393,418,420.1,385,427,430,428 ;299/79

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References Cited [Referenced By]

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U.S. Patent Documents

2578593	December 1951	Phipps
3163246	December 1964	Vagins et al.
5180022	January 1993	Brady
D340248	October 1993	Brady
5303787	April 1994	Brady
D351174	October 1994	Brady
5429199	July 1995	Sheirer et al.
6044920	April 2000	Massa et al.
D424579	May 2000	Brady
D430578	September 2000	Brady
D487753	March 2004	Brady
6883624	April 2005	McDonough

Primary Examiner: Reid; Stella
Assistant Examiner: Goodwin; Mark A.
Attorney, Agent or Firm: Heywood; Richard G.