Rock drilling tool with ovate cutters

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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° 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° 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° 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

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

Referenced Cited
U.S. Patent Documents
2578593 December 1951 Phipps
3163246 December 1964 Vagins et al.
5180022 January 19, 1993 Brady
D340248 October 12, 1993 Brady
5303787 April 19, 1994 Brady
D351174 October 4, 1994 Brady
5429199 July 4, 1995 Sheirer et al.
6044920 April 4, 2000 Massa et al.
D424579 May 9, 2000 Brady
D430578 September 5, 2000 Brady
D487753 March 23, 2004 Brady
6883624 April 26, 2005 McDonough
Patent History
Patent number: D514131
Type: Grant
Filed: Jul 8, 2004
Date of Patent: Jan 31, 2006
Assignee:
Inventor: William J. Brady (Creve Coeur, MO)
Primary Examiner: Stella Reid
Assistant Examiner: Mark A. Goodwin
Attorney: Richard G. Heywood
Application Number: 29/208,920