TREA

Over-reamer drilling tool for pilot bit

Follow

Information

  • Patent Grant
  • D483042
  • Patent Number
    D483,042
  • Date Filed
    Tuesday, March 4, 2003
    21 years ago
  • Date Issued
    Tuesday, December 2, 2003
    21 years ago
  • US Classifications
    Field of Search
    • US
    • D15 21
    • D15 28
    • D15 139
    • 175 40
    • 175 339
    • 175 377
    • 175 378
    • 175 393
    • 175 4201
    • 175 429
    • 175 430
    • 175 427
  • International Classifications
    • 1503
    • Term of Grant
      14Years
Information
Abstract
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.
US Referenced Citations (16)
Number Name Date Kind
4098362 Bonnice Jul 1978 A
4190125 Emmerich et al. Feb 1980 A
4535853 Ippolito et al. Aug 1985 A
4572307 Tunell Feb 1986 A
4683965 Walton et al. Aug 1987 A
4711312 Leibee et al. Dec 1987 A
4852671 Southland Aug 1989 A
5025874 Barr et al. Jun 1991 A
5400861 Sheirer Mar 1995 A
5429199 Sheirer et al. Jul 1995 A
5456329 Dennis et al. Oct 1995 A
5458210 Sollami Oct 1995 A
5535839 Brady Jul 1996 A
D424579 Brady May 2000 S
D430578 Brady Sep 2000 S
6427782 Brady Aug 2002 B2