Over-reamer drilling tool for pilot bit
Brady December 9, 2
U.S. patent number D483,382 [Application Number D/177,071] was granted by the patent office on 2003-12-09 for over-reamer drilling tool for pilot bit. This patent grant is currently assigned to The William J. Brady Loving Trust. Invention is credited to William J. Brady.
| United States Patent | D483,382 |
| Brady | December 9, 2003 |
Over-reamer drilling tool for pilot bit
Claims
The ornamental design for an over-reamer drilling tool for pilot bit, as shown and described.
| Inventors: | Brady; William J. (Creve Coeur, MO) |
|---|---|
| Assignee: | The William J. Brady Loving
Trust (Creve Coeur, MO) |
| Appl. No.: | D/177,071 |
| Filed: | March 4, 2003 |
Related U.S. Patent Documents
| Application Number | Filing Date | Patent Number | Issue Date | ||
|---|---|---|---|---|---|
| 161710 | Jun 3, 2002 | ||||
| Current U.S. Class: | D15/21 |
| Current International Class: | 1503 |
| Field of Search: | ;D15/21,28,139 ;175/339,377,378,393,420.1,429,430,40,427 |
References Cited [Referenced By]
U.S. Patent Documents
| 4711312 | December 1987 | Leibee et al. |
| 4852671 | August 1989 | Southland |
| 5025874 | June 1991 | Barr et al. |
| 5400861 | March 1995 | Sheirer |
| 5429199 | July 1995 | Sheirer et al. |
| D424579 | May 2000 | Brady |
| D430578 | September 2000 | Brady |
| 6427782 | August 2002 | Brady |
Attorney, Agent or Firm: Senniger, Powers, Leavitt & Roedel
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.degree. from the FIG. 2 view, and showing a phantom pilot bit in an exploded position for illustration purposes.
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