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Class Information
Number: 175/427
Name: Boring or penetrating the earth > Bit or bit element > Specific or diverse material > Insert > For a mine roof drill bit type
Description: Apparatus where the insert is in a cutting tooth secured with connecting means to a cutter head for obtaining solid state valuable minerals.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7455484 |
Cutting or breaking tool as well as cutting insert for the latter |
Nov. 25, 2008 |
| 7392866 |
Roof drilling system improvements |
Jul. 1, 2008 |
| 7228922 |
Drill bit |
Jun. 12, 2007 |
| 7168511 |
Rotary drill bit having cutting insert with a notch |
Jan. 30, 2007 |
| 7100714 |
Mine ceiling drill bit and blade |
Sep. 5, 2006 |
| 6968912 |
Drill blades for drill bit |
Nov. 29, 2005 |
| 6959775 |
Drill bit |
Nov. 1, 2005 |
| 6868924 |
Rock drill |
Mar. 22, 2005 |
| 6817429 |
Roof bit carbide blade |
Nov. 16, 2004 |
| 6742610 |
Rock drill |
Jun. 1, 2004 |
| 6702047 |
Drill bit for drilling rock |
Mar. 9, 2004 |
| 6684968 |
Roof bit body and insert assembly |
Feb. 3, 2004 |
| 6431295 |
Rock drill |
Aug. 13, 2002 |
| 6405813 |
Rock drill for drilling bores in reinforced concrete |
Jun. 18, 2002 |
| 6354771 |
Cutting or breaking tool as well as cutting insert for the latter |
Mar. 12, 2002 |
| 6260637 |
Rock drill |
Jul. 17, 2001 |
| 6260638 |
Rotatable cutting bit assembly with wedge-lock retention assembly |
Jul. 17, 2001 |
| 6176332 |
Rotatable cutting bit assembly with cutting inserts |
Jan. 23, 2001 |
| 6151960 |
Method of determining characteristics of a rotary drag-type drill bit |
Nov. 28, 2000 |
| 6145606 |
Cutting insert for roof drill bit |
Nov. 14, 2000 |
| 6032750 |
Drilling tool having a drill bit with primary and secondary cutting edges |
Mar. 7, 2000 |
| 5996714 |
Rotatable cutting bit assembly with wedge-lock retention assembly |
Dec. 7, 1999 |
| 5996715 |
Mine roof drill bit and cutting insert therefor |
Dec. 7, 1999 |
| 5873423 |
Frustum cutting bit arrangement |
Feb. 23, 1999 |
| 5829540 |
Mine roof drill bit and cutting insert therefor |
Nov. 3, 1998 |
| 5535839 |
Roof drill bit with radial domed PCD inserts |
Jul. 16, 1996 |
| 5499688 |
PDC insert featuring side spiral wear pads |
Mar. 19, 1996 |
| 5460232 |
Rotary earth drill bit socket shield |
Oct. 24, 1995 |
| 5417475 |
Tool comprised of a holder body and a hard insert and method of using same |
May. 23, 1995 |
| 5400861 |
Rotatable cutting bit assembly |
Mar. 28, 1995 |
| 5311959 |
Mine tool roof bit insert |
May. 17, 1994 |
| 5287937 |
Drill bits and the blades therefor |
Feb. 22, 1994 |
| 5269387 |
Insert for mine roof tool bit |
Dec. 14, 1993 |
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