Over-reamer drilling tool for pilot bit

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Description

FIG. 1 is a fragmentary perspective view of an over-reamer drilling tool illustrating the invention,

FIG. 2 is a side elevational view of the over-reamer drilling tool of FIG. 1, and showing a pilot bit in phantom for environmental purposes,

FIG. 3 is a top plan view of the over-reamer tool of FIG. 1, and showing a pilot bit in phantom for environmental purposes; and,

FIG. 4 is a side elevational view, as rotated 90° from the FIG. 2 view, and showing a phantom pilot bit in an exploded position for illustration purposes.

Claims

The ornamental design for an over-reamer drilling tool for pilot bit, as shown and described.

Referenced Cited
U.S. Patent Documents
4098362 July 4, 1978 Bonnice
4190125 February 26, 1980 Emmerich et al.
4535853 August 20, 1985 Ippolito et al.
4572307 February 25, 1986 Tunell
4683965 August 4, 1987 Walton et al.
4711312 December 8, 1987 Leibee et al.
4852671 August 1, 1989 Southland
5025874 June 25, 1991 Barr et al.
5400861 March 28, 1995 Sheirer
5429199 July 4, 1995 Sheirer et al.
5456329 October 10, 1995 Dennis et al.
5458210 October 17, 1995 Sollami
5535839 July 16, 1996 Brady
D424579 May 9, 2000 Brady
D430578 September 5, 2000 Brady
6427782 August 6, 2002 Brady
Patent History
Patent number: D483042
Type: Grant
Filed: Mar 4, 2003
Date of Patent: Dec 2, 2003
Assignee: The William J. Brady Loving Trust (Creve Coeur, MO)
Inventor: William J. Brady (Creve Coeur, MO)
Primary Examiner: Mitchell Siegel
Attorney, Agent or Law Firm: Senniger, Powers, Leavitt & Roedel
Application Number: 29/177,084
Classifications
Current U.S. Class: Drilling, Mining, Or Soil Treatment (includes Element) (D15/21)
International Classification: 1503;