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Class Information
Number: 299/87.1
Name: Mining or in situ disintegration of hard material > Cutter tooth or tooth head > Tooth mounted on helical head portion or head with helical conveying portion
Description: Cutter tooth or tooth head in which the element is fastened to a spiral-shaped supporting means or the supporting means has a spiral shape member used to move material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7547074 |
Overlapping pedestals for supporting a block secured to a rotating drum |
Jun. 16, 2009 |
| 7380887 |
Tool holder |
Jun. 3, 2008 |
| 7338134 |
Flighting and tool holder |
Mar. 4, 2008 |
| 7066555 |
Reinforced concrete milling/cutting mandrel |
Jun. 27, 2006 |
| 6832818 |
Milling drum for road working machine |
Dec. 21, 2004 |
| 6779850 |
Cutting apparatus having means for shielding cutting tool holders |
Aug. 24, 2004 |
| 6679559 |
Auger flight support for plural auger coal mining systems |
Jan. 20, 2004 |
| 6578294 |
Dredge cutterhead |
Jun. 17, 2003 |
| 6416134 |
Underground auger system |
Jul. 9, 2002 |
| 6374931 |
Multiple cutter rotary hammer bit |
Apr. 23, 2002 |
| 5904408 |
Rotary cutter and mounting arrangement for cutting tools |
May. 18, 1999 |
| 5884979 |
Cutting bit holder and support surface |
Mar. 23, 1999 |
| 5842747 |
Apparatus for roadway surface reclaiming drum |
Dec. 1, 1998 |
| 5794727 |
Earth remediation auger |
Aug. 18, 1998 |
| 5791737 |
Elliptical disc grinder |
Aug. 11, 1998 |
| 5722789 |
Multi-width cutter |
Mar. 3, 1998 |
| 5582468 |
Double tooth cutter |
Dec. 10, 1996 |
| 5573308 |
Cutting element and holder for a coal cutting machine |
Nov. 12, 1996 |
| 5536073 |
Road milling drum assembly and method of milling |
Jul. 16, 1996 |
| 5427191 |
Auger head assembly and method of drilling hard earth formations |
Jun. 27, 1995 |
| 5366031 |
Auger head assembly and method of drilling hard earth formations |
Nov. 22, 1994 |
| 5302005 |
Apparatus for holding a cutting bit |
Apr. 12, 1994 |
| 5143163 |
Digging tooth |
Sep. 1, 1992 |
| 5120112 |
Vane type conveyor for a mining machine drum |
Jun. 9, 1992 |
| 5052757 |
Flighting section and tooth holder |
Oct. 1, 1991 |
| 5016943 |
Milling device for cutting up road surfaces |
May. 21, 1991 |
| 4952179 |
Salt mushroom cutting apparatus |
Aug. 28, 1990 |
| 4917196 |
Excavating tooth for an earth auger |
Apr. 17, 1990 |
| 4697850 |
Cutter drum for pavement profiler |
Oct. 6, 1987 |
| 4695098 |
Excavator, particularly for continuous strip mining of minerals |
Sep. 22, 1987 |
| 4693517 |
Cutter for gouging ore or rock from mine faces |
Sep. 15, 1987 |
| 4491370 |
Rotary cutting roller |
Jan. 1, 1985 |
| 4480873 |
Flighting section and tooth holder |
Nov. 6, 1984 |
| 4470636 |
Mining machine excavator drum having liquid spray control |
Sep. 11, 1984 |
| 4465320 |
Cutter drum assembly for longwall mining machines |
Aug. 14, 1984 |
| 4456305 |
Shield tunneling machine |
Jun. 26, 1984 |
| 4451092 |
Cutting roller |
May. 29, 1984 |
| 4445724 |
Cutter-loader apparatus having overhung shearer drum |
May. 1, 1984 |
| 4438821 |
Mining machinery |
Mar. 27, 1984 |
| 4436346 |
Cutting roller for a mining machine |
Mar. 13, 1984 |
| 4428619 |
Rotary cutter heads for mining machines |
Jan. 31, 1984 |
| 4411475 |
Cutting drum |
Oct. 25, 1983 |
| 4402371 |
Rotatable drilling head |
Sep. 6, 1983 |
| 4394053 |
Nozzle holder for cutter drum in longwall mining machinery |
Jul. 19, 1983 |
| 4358161 |
Mining equipment |
Nov. 9, 1982 |
| 4340256 |
Diamond planar cutter |
Jul. 20, 1982 |
| 4290653 |
Coal mining machine cutter with noise suppressant and flame resistant layer |
Sep. 22, 1981 |
| 4280732 |
Method and apparatus for mining |
Jul. 28, 1981 |
| 4278296 |
Coal mining drum with adjustable linier edge cutters |
Jul. 14, 1981 |
| 4278293 |
Apparatus for advancing a low-height drift through a subterranean structure |
Jul. 14, 1981 |
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