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Class Information
Number: 451/375
Name: Abrading > Work holder > Clamp > Edge tool > Rotary cutter > Drill
Description: Clamping rotary edge tool holder especially adapted for securing a drill bit in position while being abraded.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7300334 |
Drilling-head-grinding positioning device |
Nov. 27, 2007 |
| 7172498 |
Drill sharpener |
Feb. 6, 2007 |
| 7147546 |
Tool holder with moveable alignment finger |
Dec. 12, 2006 |
| 7143489 |
Multiple station tooling machine for manufacturing drill bits and other spirally grooved workpieces |
Dec. 5, 2006 |
| 7121932 |
Portable drill sharpener |
Oct. 17, 2006 |
| 6926593 |
Vehicle wheel hole deburring device and method |
Aug. 9, 2005 |
| 6824449 |
Clamping assembly |
Nov. 30, 2004 |
| 6676494 |
Drill bit grinder structure |
Jan. 13, 2004 |
| 6652367 |
Drill bit grinding device |
Nov. 25, 2003 |
| 6626745 |
Precision drill sharpener and grinding wheel assembly therefor |
Sep. 30, 2003 |
| 6283830 |
Grinding control unit of a tool bit grinder |
Sep. 4, 2001 |
| 6244938 |
Drill grinder |
Jun. 12, 2001 |
| 6186876 |
Apparatus for grinding welding electrodes, in particular wolfram electrodes |
Feb. 13, 2001 |
| 6113477 |
Drill abrasive apparatus |
Sep. 5, 2000 |
| 6110018 |
Apparatus and methods of sharpening cutting tools |
Aug. 29, 2000 |
| 6001002 |
Hand-held drill bit sharpening tool |
Dec. 14, 1999 |
| 5788559 |
Web adjust drill bit sharpener and method of using |
Aug. 4, 1998 |
| 5735732 |
Precision drill sharpener and grinding wheel assembly therefor |
Apr. 7, 1998 |
| 5676591 |
Bit sharpener |
Oct. 14, 1997 |
| 5649853 |
Drill bit grinding machine |
Jul. 22, 1997 |
| 5637036 |
Power tool adapter |
Jun. 10, 1997 |
| 5618028 |
Power tool adapter |
Apr. 8, 1997 |
| 5367836 |
Automatic drill loader |
Nov. 29, 1994 |
| 5353552 |
Root-strength drill bit and method of making |
Oct. 11, 1994 |
| 5327685 |
Electric drill completed with a set of grinding equipments |
Jul. 12, 1994 |
| 5319890 |
Bushingless workhead |
Jun. 14, 1994 |
| 5263286 |
Drill and drill grinding method and apparatus |
Nov. 23, 1993 |
| 5241791 |
Edge tool sharpening apparatus |
Sep. 7, 1993 |
| 5210977 |
Drill grinding device |
May. 18, 1993 |
| 5184430 |
Machine for machining edges, particularly of glass plates |
Feb. 9, 1993 |
| 5184431 |
Apparatus for the grinding of workpieces, especially tools |
Feb. 9, 1993 |
| 5125186 |
Drill grinding machine |
Jun. 30, 1992 |
| 4995301 |
Tri-motion grinding fixture |
Feb. 26, 1991 |
| 4974372 |
Universal device for sharpening drill bits |
Dec. 4, 1990 |
| 4916867 |
Drill bit sharpener |
Apr. 17, 1990 |
| 4858389 |
Apparatus for grinding twist drills |
Aug. 22, 1989 |
| 4848036 |
Grinding machine for drill bits |
Jul. 18, 1989 |
| 4821463 |
Drill bit sharpening apparatus |
Apr. 18, 1989 |
| 4787176 |
Drill bit sharpening apparatus |
Nov. 29, 1988 |
| 4782633 |
Drill bit sharpening method |
Nov. 8, 1988 |
| 4779317 |
Automatic machine for milling drill points on rod blanks |
Oct. 25, 1988 |
| 4769955 |
Fixture for holding a hole-cutting tool having cutting edges to be ground |
Sep. 13, 1988 |
| 4742648 |
Drill sharpening tool |
May. 10, 1988 |
| 4716688 |
Fixture for holding a hole-cutting tool having cutting edges to be ground |
Jan. 5, 1988 |
| 4703588 |
Drill cutting edge grinder |
Nov. 3, 1987 |
| 4658549 |
Drill bit sharpening device |
Apr. 21, 1987 |
| 4638603 |
Device for sharpening single-flute countersinks |
Jan. 27, 1987 |
| 4607463 |
Adjustment means for a drill bit sharpening device |
Aug. 26, 1986 |
| 4566227 |
Auxiliary device for re-grinding of spiral drills |
Jan. 28, 1986 |
| 4547999 |
Device for fixing a drill to be ground |
Oct. 22, 1985 |
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