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Class Information
Number: 299/100
Name: Mining or in situ disintegration of hard material > Cutter tooth or tooth head > Percussive tooth or bit
Description: Cutter tooth or tooth head in which the element is operated by cyclic impact upon or against the hard material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7523997 |
Removable attachment for a rock breaker |
Apr. 28, 2009 |
| 7503628 |
Formation breaking assembly |
Mar. 17, 2009 |
| 7207633 |
Scaling assembly |
Apr. 24, 2007 |
| 7178878 |
Chisel |
Feb. 20, 2007 |
| 7059432 |
Cup-shaped rock drill head |
Jun. 13, 2006 |
| 6938961 |
Apparatus for breaking up solid objects |
Sep. 6, 2005 |
| 6764139 |
System for and method of demolition |
Jul. 20, 2004 |
| 6520592 |
Apparatus and method for demolishing pavement |
Feb. 18, 2003 |
| 6508318 |
Percussive rock drill bit and buttons therefor and method for manufacturing drill bit |
Jan. 21, 2003 |
| 6257673 |
Percussion tool for boom mounted hammers |
Jul. 10, 2001 |
| 6203113 |
Cutting drum with percussive bits |
Mar. 20, 2001 |
| 6105693 |
Partially enhanced percussive drill bit |
Aug. 22, 2000 |
| 6014826 |
Chain for trencher apparatus |
Jan. 18, 2000 |
| 5984030 |
Rock drilling tool, drill bit and a method of transferring percussive energy |
Nov. 16, 1999 |
| 5966848 |
Tooth of ore recovery buckets |
Oct. 19, 1999 |
| 5884978 |
Hammer tool for boom mountable power hammer |
Mar. 23, 1999 |
| 5873423 |
Frustum cutting bit arrangement |
Feb. 23, 1999 |
| 5662386 |
Plunger-actuated surface-treating devices |
Sep. 2, 1997 |
| 5632527 |
Tool and method for the removal of floor or wall surfacing |
May. 27, 1997 |
| 5456329 |
Bifurcated drill bit construction |
Oct. 10, 1995 |
| 5409300 |
Mechanized scaling bar |
Apr. 25, 1995 |
| 5180210 |
Chiseling apparatus |
Jan. 19, 1993 |
| 5145237 |
Cutter bit with optimized shank |
Sep. 8, 1992 |
| 5066070 |
Apparatus for reflex-percussive cutting of concrete etc. |
Nov. 19, 1991 |
| 5028092 |
Impact kerfing rock cutter and method |
Jul. 2, 1991 |
| 4906049 |
Ripper using a hydraulic hammer and a method for making the improvement |
Mar. 6, 1990 |
| 4871214 |
Cheeking device, particularly for the hanging roof in mines, underground working points, or heading and similar |
Oct. 3, 1989 |
| 4783123 |
Tool bit for impact ripping of a mine face |
Nov. 8, 1988 |
| 4568127 |
Cutting head for drift advancing machines |
Feb. 4, 1986 |
| 4534421 |
Tool assembly |
Aug. 13, 1985 |
| 4416489 |
Chisel for a crust breaking facility |
Nov. 22, 1983 |
| 4413686 |
Wedge arrangement for locking together hammerhead and anvil |
Nov. 8, 1983 |
| 4317595 |
Chisel for a crust breaking facility |
Mar. 2, 1982 |
| 4253706 |
Magnetic breaker bar |
Mar. 3, 1981 |
| 4251113 |
Hammer for breaking strong abrasive materials |
Feb. 17, 1981 |
| 4227744 |
Impact tip for impact rock breaker |
Oct. 14, 1980 |
| 4139237 |
Breaker bar |
Feb. 13, 1979 |
| 4089562 |
Cutter for asphalt paving |
May. 16, 1978 |
| 4086984 |
Vibration damper for impact tool |
May. 2, 1978 |
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