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Class Information
Number: 299/110
Name: Mining or in situ disintegration of hard material > Cutter tooth or tooth head > Rolling or rotatable bit
Description: Cutter tooth or tooth head in which the element able to spin, turn, or tend to spin on the material being contacted.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7588102 |
High impact resistant tool |
Sep. 15, 2009 |
| 7490912 |
Round shaft chisel |
Feb. 17, 2009 |
| 7475948 |
Pick with a bearing |
Jan. 13, 2009 |
| 7469972 |
Wear resistant tool |
Dec. 30, 2008 |
| 7458646 |
Rotatable cutting tool and cutting tool body |
Dec. 2, 2008 |
| 7413257 |
Rotatable cutting tool with reverse tapered body |
Aug. 19, 2008 |
| 7360845 |
Cold-formed rotatable cutting tool and method of making the same |
Apr. 22, 2008 |
| 7278500 |
Roller cutter |
Oct. 9, 2007 |
| 7014271 |
Apparatus for detecting the state of rotation of cutting rollers of a shield tunneling machine |
Mar. 21, 2006 |
| 6944977 |
Drum for an excavator that can be used in particular for the production of vertical trenches in hard or very hard soils |
Sep. 20, 2005 |
| 6863352 |
Rotatable tool assembly |
Mar. 8, 2005 |
| 6854810 |
T-shaped cutter tool assembly with wear sleeve |
Feb. 15, 2005 |
| 6779850 |
Cutting apparatus having means for shielding cutting tool holders |
Aug. 24, 2004 |
| 6739327 |
Cutting tool with hardened tip having a tapered base |
May. 25, 2004 |
| 6712431 |
Cutting arrangement |
Mar. 30, 2004 |
| 6685273 |
Streamlining bit assemblies for road milling, mining and trenching equipment |
Feb. 3, 2004 |
| 6644755 |
Fixture for a round shank chisel having a wearing protection disk |
Nov. 11, 2003 |
| 6623084 |
Mounting of a rotatable chisel in mining machinery |
Sep. 23, 2003 |
| 6607249 |
Conical bit penetrator pocket protector for earth displacement equipment |
Aug. 19, 2003 |
| 6375272 |
Rotatable cutting tool insert |
Apr. 23, 2002 |
| 6371567 |
Bit holders and bit blocks for road milling, mining and trenching equipment |
Apr. 16, 2002 |
| 6364420 |
Bit and bit holder/block having a predetermined area of failure |
Apr. 2, 2002 |
| 6343842 |
Roller bit for tunnel-driving machines with segmented cutting rings |
Feb. 5, 2002 |
| 6341823 |
Rotatable cutting tool with notched radial fins |
Jan. 29, 2002 |
| 6244665 |
Cutting toolholder with recessed groove for cutting tool removal |
Jun. 12, 2001 |
| 6196636 |
Cutting bit insert configured in a polygonal pyramid shape and having a ring mounted in surrounding relationship with the insert |
Mar. 6, 2001 |
| 6170917 |
Pick-style tool with a cermet insert having a Co-Ni-Fe-binder |
Jan. 9, 2001 |
| 6059373 |
Pick holder extraction |
May. 9, 2000 |
| 5685615 |
Eccentrically driven percussive tools for treating materials |
Nov. 11, 1997 |
| 5308151 |
Cutter wheel assembly for mining machine |
May. 3, 1994 |
| 5295735 |
Rock saw |
Mar. 22, 1994 |
| 5230548 |
Longwall cutter drum having reduced production of dust |
Jul. 27, 1993 |
| 5201569 |
Mounting for receiving a mining pick bit |
Apr. 13, 1993 |
| 4913125 |
Cutter picks |
Apr. 3, 1990 |
| 4815543 |
Activated rock cutting assembly |
Mar. 28, 1989 |
| 4784438 |
Tunneling machine rotatable member |
Nov. 15, 1988 |
| 4736987 |
Rock cutting assembly |
Apr. 12, 1988 |
| 4542942 |
Bit holder equipped with a spraying device |
Sep. 24, 1985 |
| 4488759 |
Device for supplying fluid to a tool for breaking hard material |
Dec. 18, 1984 |
| 4448269 |
Cutter head for pit-boring machine |
May. 15, 1984 |
| 4405178 |
Cutter bit for a mining machine |
Sep. 20, 1983 |
| 4371210 |
Freely rotatable pick bit holder on rotary driven member and method |
Feb. 1, 1983 |
| 4304440 |
Roller cutter |
Dec. 8, 1981 |
| RE30807 |
Point-attack bit |
Dec. 1, 1981 |
| 4302053 |
Mounting block to rotate coal cutter bits |
Nov. 24, 1981 |
| 4232905 |
Tunnelling machine |
Nov. 11, 1980 |
| 4222446 |
Cutter with cutter holder for disintegrating of material, particularly of rock |
Sep. 16, 1980 |
| 4194791 |
Grooved earthworking bit and method of enhancing the life thereof |
Mar. 25, 1980 |
| 4065185 |
Point-attack bit |
Dec. 27, 1977 |
| 4045088 |
Oscillating disk thin seam mining machine with steering |
Aug. 30, 1977 |
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