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Class Information
Number: 299/42
Name: Mining or in situ disintegration of hard material > Hard material disintegrating machines > Sidewall-working (e.g., longwall cutter)
Description: Apparatus in which the cutter is described as breaking up material which forms a substantially vertical wall as the cutter advances parallel to said wall.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7314253 |
Plough for underground mining |
Jan. 1, 2008 |
| 6666523 |
Reef miner with disk and drum cutters |
Dec. 23, 2003 |
| 5941154 |
Guide shoe for a cutting machine |
Aug. 24, 1999 |
| 5931541 |
Drive mechanism for a combined cutter loader |
Aug. 3, 1999 |
| 5234256 |
Cutting apparatus for mining operations with automatic control |
Aug. 10, 1993 |
| 5228751 |
Control system for longwall shearer |
Jul. 20, 1993 |
| 5224762 |
Sliding seal for mining machine power tranmission |
Jul. 6, 1993 |
| 5180251 |
Underground protection underneath a dump |
Jan. 19, 1993 |
| 5106162 |
Method of steering a mining machine |
Apr. 21, 1992 |
| 4955668 |
Drum cutter-loader equipped with an auxiliary drum |
Sep. 11, 1990 |
| 4944558 |
Drum cutter-loader for underground mining |
Jul. 31, 1990 |
| 4943120 |
Force transmitting housing for longwall mining machine |
Jul. 24, 1990 |
| 4898428 |
Power supply system for an underground mining machine |
Feb. 6, 1990 |
| 4896920 |
Drum-cutter mining machine |
Jan. 30, 1990 |
| 4889393 |
Drum cutter-loader for underground mining machine |
Dec. 26, 1989 |
| 4887867 |
Ranging drum shearers |
Dec. 19, 1989 |
| 4883323 |
Longwall mining machine for the mining of thick mineral seams |
Nov. 28, 1989 |
| 4828326 |
Shearer loader for underground mining operation |
May. 9, 1989 |
| 4822105 |
Double ended ranging drum shearer and method of controlling working height in mining face in use of the same |
Apr. 18, 1989 |
| 4741577 |
Double ranging drum cutter having load controller |
May. 3, 1988 |
| 4664449 |
Drift advancing or mining machine |
May. 12, 1987 |
| 4660892 |
Sectorial sprinkling device for coal mining |
Apr. 28, 1987 |
| 4648659 |
Method and hydraulic system for controlling supply of fluid to combine for extracting minerals |
Mar. 10, 1987 |
| 4643482 |
Steering of mining machines |
Feb. 17, 1987 |
| 4634186 |
Control system for longwall shearer |
Jan. 6, 1987 |
| 4571003 |
Apparatus for controlling the position of a mineral mining machine |
Feb. 18, 1986 |
| 4568128 |
Rotary cutter heads for mineral mining machines |
Feb. 4, 1986 |
| 4565410 |
Apparatus for controlling the supply of high-pressure liquid to a cutter drum assembly |
Jan. 21, 1986 |
| 4514011 |
Power and liquid supply system for mining machines |
Apr. 30, 1985 |
| 4509799 |
Apparatus for controlling the position of a mineral mining machine |
Apr. 9, 1985 |
| 4466491 |
Apparatus for removing rocks and objects |
Aug. 21, 1984 |
| 4465319 |
Integrated cutter, breaker and haulage drive gearcase |
Aug. 14, 1984 |
| 4461512 |
Feed system of a mining combine |
Jul. 24, 1984 |
| 4453774 |
Driving arrangement for longwall mining machines |
Jun. 12, 1984 |
| 4367902 |
Tool for hydromechanical or hydraulic mining or for cutting mineral or bituminous materials |
Jan. 11, 1983 |
| 4357052 |
Device for directing the rack |
Nov. 2, 1982 |
| 4287831 |
Friction and rack and pinion locomotive |
Sep. 8, 1981 |
| 4273385 |
Device for safety guiding of hauling chain especially at ranging drum shearer in coal mining |
Jun. 16, 1981 |
| 4236758 |
Rack drive for a drum cutter mining machine |
Dec. 2, 1980 |
| 4223950 |
Longwall cutting machines with drum moved by plural power means |
Sep. 23, 1980 |
| 4155597 |
Mineral winning/detaching machines |
May. 22, 1979 |
| 4085974 |
Drum cutter |
Apr. 25, 1978 |
| 3975056 |
Longwall canted drum mining machine |
Aug. 17, 1976 |
| 3954300 |
Mining machine longwall propulsion means |
May. 4, 1976 |
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