FIG. 1 is a perspective illustration of the drill bit blade of the present invention;
FIG. 2 is a front elevation view of the drill bit blade of FIG. 1, the rear elevation view being a mirror image;
FIG. 3 is a left end elevation view of the drill bit blade of FIG. 1, the right end elevation being a mirror image;
FIG. 4 is a top plan view of the drill bit blade of FIG. 1; and,
FIG. 5 is a bottom plan view of the drill bit blade of FIG. 1.
Patent |
Priority |
Assignee |
Title |
2707619, |
|
|
|
2902260, |
|
|
|
3447616, |
|
|
|
4314616, |
Jan 28 1980 |
CLEVELAND TWIST DRILL COMPANY, THE |
Die-cast masonry drill with leading hard insert |
4342368, |
Aug 18 1977 |
Kennametal Inc. |
Rotary drills and drill bits |
4489796, |
May 25 1983 |
KENNAMETAL PC INC |
Insert for a mine tool roof bit and a method of drilling therewith |
4550791, |
Oct 03 1983 |
KENNAMETAL PC INC |
Two-prong rotary bit, especially for use with roof drills, and insert therefor |
4787464, |
Nov 13 1987 |
KENNAMETAL PC INC |
Variable rake mine tool insert and method of use |
5184689, |
Mar 06 1991 |
KENNAMETAL INC |
Radial cut drill bit insert |
5269387, |
Feb 27 1992 |
NANCE, LARRY S |
Insert for mine roof tool bit |
5287937, |
Jun 30 1992 |
The Sollami Company |
Drill bits and the blades therefor |
5297643, |
Dec 19 1990 |
KENNAMETAL INC; NSS Industries |
Cold headed center vacuum drill bit |
5311959, |
Apr 13 1992 |
KENNAMETAL INC |
Mine tool roof bit insert |
5375672, |
Oct 22 1992 |
SANDVIK ROCK TOOLS, INC |
Mine roof drill bit and cutting insert therefor |
5429199, |
Aug 26 1992 |
KENNAMETAL INC |
Cutting bit and cutting insert |
5458210, |
Oct 15 1993 |
The Sollami Company |
Drill bits and blades therefor |
5628376, |
Oct 15 1994 |
Hilti Aktiengesellschaft |
Drilling tool bit with a carrier member and cutter members |
5630478, |
Jun 07 1995 |
Credo Technology Corporation |
Masonry drill bit and method of making a masonry drill bit |
5735648, |
Nov 28 1994 |
Hilti Aktiengesellschaft |
Tool bit with carrier member and cutting member |
5829540, |
Jul 28 1993 |
SANDVIK ROCK TOOLS, INC |
Mine roof drill bit and cutting insert therefor |
5996715, |
Jul 28 1993 |
Sandvik Rock Tools, Inc. |
Mine roof drill bit and cutting insert therefor |
6026918, |
Oct 10 1997 |
PETERSEN, GUY A |
Roof bolt bit |
6044919, |
Jul 31 1997 |
PETERSEN, GUY A |
Rotary spade drill arrangement |
6145606, |
Mar 08 1999 |
KENNAMETAL INC |
Cutting insert for roof drill bit |
6260637, |
Nov 11 1996 |
Hawera Probst GmbH |
Rock drill |
6260638, |
Jul 15 1997 |
KENNAMETAL INC |
Rotatable cutting bit assembly with wedge-lock retention assembly |
6297542, |
Jun 25 1998 |
U S BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT |
Connecting a die in an integrated circuit module |
6328506, |
Jul 29 1995 |
Black & Decker Inc. |
Masonry drill bit |
6446741, |
Sep 16 1999 |
HELLER TOOLS GMBH |
Rock drill |
6454029, |
Nov 26 1999 |
LONGYEAR SOUTH AFRICA PTY LIMITED |
Rotary boring bit and borer |
6817429, |
Oct 03 2002 |
|
Roof bit carbide blade |
D340248, |
May 23 1991 |
DOVER BMCS ACQUISITION CORP |
Roof drill bit for mining |
D351174, |
May 23 1991 |
DOVER BMCS ACQUISITION CORP |
Roof drill bit for mining machine |
D424579, |
Oct 08 1998 |
DOVER BMCS ACQUISITION CORP |
Rotary mining bit |
D430578, |
Oct 08 1998 |
DOVER BMCS ACQUISITION CORP |
Rotary mining bit |