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
Patent History
Patent number: D483382
Type: Grant
Filed: Mar 4, 2003
Date of Patent: Dec 9, 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: 29/177,071
Type: Grant
Filed: Mar 4, 2003
Date of Patent: Dec 9, 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: 29/177,071
Classifications
Current U.S. Class:
Drilling, Mining, Or Soil Treatment (includes Element) (D15/21)
International Classification: 1503;
International Classification: 1503;