FIG. 1 is a perspective view of a drill bit embodying the invention.
FIG. 2 is a front view of the drill bit shown in FIG. 1, the rear view being substantially the same as the front view.
FIG. 3 is a side view of the drill bit shown in FIG. 1, the opposite side view being substantially the same as the illustrated side view.
FIG. 4 is a top view of the drill bit shown in FIG. 1; and,
FIG. 5 is a bottom view of the drill bit shown in FIG. 1.
The elements shown in broken lines are for illustrative purposes only and form no part of the claimed design.
| Patent |
Priority |
Assignee |
Title |
| 2627292, |
|
|
|
| 3920350, |
|
|
|
| 3997279, |
Jan 20 1975 |
Parker Manufacturing Co. |
Drill bit |
| 4286904, |
Jul 16 1979 |
STANLEY-PARKER, INC |
Wood bit |
| 4527449, |
Sep 13 1982 |
Rule Industries, Inc. |
Boring bit and method for manufacture thereof |
| 4565473, |
Aug 29 1980 |
|
Drill |
| 4682917, |
Jan 24 1986 |
Irwin Industrial Tool Company |
Spade bit with fluted shoulders |
| 4826364, |
Aug 27 1986 |
Stellram S.A. |
One-piece rotary material removing tool of sintered hard metal |
| 4950111, |
Dec 23 1988 |
|
Drill bit with spurs and having rectangular center spur with concave tip |
| 5061127, |
Apr 05 1991 |
|
Drill bit with concave spurs and having triangular center point with vee grooves |
| 5193951, |
Aug 24 1988 |
Credo Technology Corporation |
Wood-drilling bit |
| 5221166, |
Jul 31 1991 |
Enderes Tool Co., Inc.; ENDERES TOOL CO , INC , |
Spade-type drill bit apparatus and method |
| 5286143, |
May 20 1992 |
Credo Technology Corporation |
Wood bit and method of making |
| 5291806, |
Jul 31 1991 |
Enderes Tool Company, Inc. |
Spade-type drill bit apparatus and method |
| 5338135, |
Apr 11 1991 |
Sumitomo Electric Industries, Ltd. |
Drill and lock screw employed for fastening the same |
| 5433561, |
May 20 1992 |
Credo Technology Corporation |
Wood bit and method of making |
| 5452970, |
Jul 15 1991 |
Irwin Industrial Tool Company |
Drill bit |
| 5649796, |
May 17 1995 |
CASTLE TOOL MACHINER, INCORPORATED, D B A CASTLE INC |
Carbide spade-type drill bit |
| 5697738, |
Dec 30 1994 |
BLACK & DECKER INC , A DELAWARE CORP |
Spade-type boring bit having chamfered corner portions |
| 5700113, |
Dec 30 1994 |
Black & Decker Inc |
Spade-type boring bit and an associated method and apparatus for forming metallic parts |
| 6015248, |
Sep 19 1995 |
Commonwealth Scientific and Industrial Research Organisation |
Wood corer device |
| 6227774, |
Jun 24 1999 |
RICHELIEU HARDWARE LTD |
Spade drill bit |
| 6290439, |
Dec 30 1994 |
Black & Decker, Inc |
Method and apparatus for forming parts from a continuous stock material and associated forge |
| 6652202, |
Jan 03 2000 |
Quick Turn Manufacturing, LLC |
Drill bit apparatus and method of manufacture of same |
| 6957937, |
Feb 20 2001 |
Team Fair Holdings Limited |
Spade bits with angled sides |
| 7140814, |
Apr 30 2002 |
Black & Decker Inc |
Spade-type drill bit having helical configuration |
| 7246976, |
Oct 21 2003 |
GREENLEE TOOLS, INC |
Spade bit |
| 7267513, |
Mar 11 2003 |
Credo Technology Corporation |
Spade drill bit |
| 7473056, |
Oct 20 2005 |
Black & Decker Inc |
Spade bit |
| 20040052594, |
|
|
|
| 20060083595, |
|
|
|
| 20070092348, |
|
|
|
| 20080101879, |
|
|
|
| 20080279647, |
|
|
|
| 240263, |
|
|
|
| D372485, |
Dec 30 1994 |
Black & Decker Inc |
Spade-type boring bit |
| D394663, |
Dec 30 1994 |
BLACK & DECKER INC , A DELAWARE CORPORATION |
Spade-type boring bit having chamfered corner portions |
| D455446, |
Feb 27 2001 |
|
Compound boring bit |
| D507585, |
Sep 13 2003 |
|
Drill bore bit |
| EP127322, |
|
|
|
| EP775560, |
|
|
|