| |
 |
|
Class Information
Number: 175/420.1
Name: Boring or penetrating the earth > Bit or bit element > Impact or percussion type > Insert
Description: Apparatus in which the cutting edge of the bit is formed of a relatively small element of abrasive resistant material which is inserted in a slot or aperture in the bit and secured therein.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7258180 |
Rotary hammerdrill bit |
Aug. 21, 2007 |
| 7225890 |
Cutting plate for a drill bit |
Jun. 5, 2007 |
| 7168511 |
Rotary drill bit having cutting insert with a notch |
Jan. 30, 2007 |
| 7137461 |
Masonry drilling tool |
Nov. 21, 2006 |
| 7128773 |
Compositions having enhanced wear resistance |
Oct. 31, 2006 |
| 7100714 |
Mine ceiling drill bit and blade |
Sep. 5, 2006 |
| 7066694 |
Cutting plate for a drill bit |
Jun. 27, 2006 |
| 7051822 |
Drill bit and drill tip having a tip-locating structure |
May. 30, 2006 |
| 7001120 |
Drilling tool |
Feb. 21, 2006 |
| 6976549 |
Drilling tool |
Dec. 20, 2005 |
| 6968912 |
Drill blades for drill bit |
Nov. 29, 2005 |
| 6945340 |
Roof bit and insert assembly |
Sep. 20, 2005 |
| 6929079 |
Drill bit cutter element having multiple cusps |
Aug. 16, 2005 |
| 6918455 |
Drill bit with large inserts |
Jul. 19, 2005 |
| 6915867 |
Earth penetrating rotary drill bit with helical ports |
Jul. 12, 2005 |
| 6886645 |
Liquid seal for wet roof bit |
May. 3, 2005 |
| 6868924 |
Rock drill |
Mar. 22, 2005 |
| 6843334 |
Drilling head of a rock drill |
Jan. 18, 2005 |
| 6817429 |
Roof bit carbide blade |
Nov. 16, 2004 |
| 6799648 |
Method of producing downhole drill bits with integral carbide studs |
Oct. 5, 2004 |
| 6782959 |
Cutter element with non-linear, expanded crest |
Aug. 31, 2004 |
| 6742610 |
Rock drill |
Jun. 1, 2004 |
| 6684968 |
Roof bit body and insert assembly |
Feb. 3, 2004 |
| 6668945 |
Method and apparatus for milling a window in a well casing or liner |
Dec. 30, 2003 |
| 6655480 |
Cutting insert for percussion drill bit |
Dec. 2, 2003 |
| 6655478 |
Fracture and wear resistant rock bits |
Dec. 2, 2003 |
| 6601660 |
Cutting structure for roller cone drill bits |
Aug. 5, 2003 |
| 6595305 |
Drill bit, hard member, and bit body |
Jul. 22, 2003 |
| 6588519 |
Head for a rock drill |
Jul. 8, 2003 |
| 6561293 |
Cutter element with non-linear, expanded crest |
May. 13, 2003 |
| 6561291 |
Roller cone drill bit structure having improved journal angle and journal offset |
May. 13, 2003 |
| 6508318 |
Percussive rock drill bit and buttons therefor and method for manufacturing drill bit |
Jan. 21, 2003 |
| 6484826 |
Engineered enhanced inserts for rock drilling bits |
Nov. 26, 2002 |
| 6454029 |
Rotary boring bit and borer |
Sep. 24, 2002 |
| 6450273 |
Drilling tool including drilling head with multiple cutting members separated drilled material grooves |
Sep. 17, 2002 |
| 6446741 |
Rock drill |
Sep. 10, 2002 |
| 6431295 |
Rock drill |
Aug. 13, 2002 |
| 6405813 |
Rock drill for drilling bores in reinforced concrete |
Jun. 18, 2002 |
| 6394199 |
Non-circular gauge reaming row inserts |
May. 28, 2002 |
| 6374931 |
Multiple cutter rotary hammer bit |
Apr. 23, 2002 |
| 6367568 |
Steel tooth cutter element with expanded crest |
Apr. 9, 2002 |
| 6345940 |
Cutting tools for drilling concrete, aggregate, masonry or the like materials |
Feb. 12, 2002 |
| 6328506 |
Masonry drill bit |
Dec. 11, 2001 |
| 6315064 |
Rotatable cutting bit assembly with cutting inserts |
Nov. 13, 2001 |
| 6290008 |
Inserts for earth-boring bits |
Sep. 18, 2001 |
| 6260638 |
Rotatable cutting bit assembly with wedge-lock retention assembly |
Jul. 17, 2001 |
| 6260637 |
Rock drill |
Jul. 17, 2001 |
| 6241034 |
Cutter element with expanded crest geometry |
Jun. 5, 2001 |
| 6189633 |
Drill |
Feb. 20, 2001 |
| 6176332 |
Rotatable cutting bit assembly with cutting inserts |
Jan. 23, 2001 |
|
|
|
