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Class Information
Number: 299/1.6
Name: Mining or in situ disintegration of hard material > Automatic control; signaling or indicating > Of hard material disintegrating machines > Sidewall working (e.g., longwall-type)
Description: Process or apparatus in which the cutter breaks up material which forms a substantially vertical wall as the cutter advances parallel to the wall.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7600822 |
Method for the mining of coal and coal planer installation |
Oct. 13, 2009 |
| 7549709 |
Mining device |
Jun. 23, 2009 |
| 7393059 |
Planing device and method for activating a planning device |
Jul. 1, 2008 |
| 6857705 |
Mining machine and method |
Feb. 22, 2005 |
| 6481802 |
Control system for longwall face alignment |
Nov. 19, 2002 |
| 6361119 |
Mining control system for adjusting the advance of mining tools |
Mar. 26, 2002 |
| 6257671 |
Device for protecting selective cutting machines against overload |
Jul. 10, 2001 |
| 5931540 |
Drive system having a pin drive chain for a cutting machine for underground mining |
Aug. 3, 1999 |
| 5647640 |
Continuously operating mining machines with plow and conveyor chains and method of operating same |
Jul. 15, 1997 |
| 5624162 |
Long-wall mining machine with a working chain |
Apr. 29, 1997 |
| 5553925 |
Apparatus for automatically adjusting the cutting horizon of a mining extraction apparatus |
Sep. 10, 1996 |
| 5513902 |
Driving system for driving flexible elongate members, such as chains or scraper-chain assemblies, in mineral mining installations and method of operating |
May. 7, 1996 |
| 5228751 |
Control system for longwall shearer |
Jul. 20, 1993 |
| 5158341 |
Method of steering a mining machine |
Oct. 27, 1992 |
| 5121971 |
Method of measuring uncut coal rib thickness in a mine |
Jun. 16, 1992 |
| 5116103 |
Method of steering a mining machine |
May. 26, 1992 |
| 5087099 |
Long range multiple point wireless control and monitoring system |
Feb. 11, 1992 |
| 5020860 |
Methods and apparatus for maintaining longwall face alignment |
Jun. 4, 1991 |
| 5017051 |
Electrohydraulic control means for hydraulic self-advancing support units |
May. 21, 1991 |
| 5013091 |
Method of indirect measurement of cowl position on a longwall shearer |
May. 7, 1991 |
| 4976495 |
Method and apparatus for steering a mining machine cutter |
Dec. 11, 1990 |
| 4952000 |
Method and apparatus for increasing the efficiency of highwall mining |
Aug. 28, 1990 |
| 4822105 |
Double ended ranging drum shearer and method of controlling working height in mining face in use of the same |
Apr. 18, 1989 |
| 4776637 |
Cutting machines and method of controlling the cutting horizon |
Oct. 11, 1988 |
| 4741577 |
Double ranging drum cutter having load controller |
May. 3, 1988 |
| 4715657 |
Double ranging drum cutter having bedrock sensor based on video image processing system |
Dec. 29, 1987 |
| 4691967 |
Apparatus for controlling the discharge of pressurized liquid from nozzles on a cutting drum of a mining machine |
Sep. 8, 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 |
| 4533180 |
Fluid supply system for rotary cutter heads for mining equipment and to mining machines comprising rotary cutter heads having fluid supply systems |
Aug. 6, 1985 |
| 4531782 |
Mining equipment |
Jul. 30, 1985 |
| 4516807 |
Fluid supply systems for rotary cutter heads for mining machines and rotary cutter heads comprising fluid supply systems |
May. 14, 1985 |
| 4466667 |
Longwall shearer tracking system |
Aug. 21, 1984 |
| 4465318 |
Rotary cutting head for mining machines with means for inducing airflow and sensing thereof |
Aug. 14, 1984 |
| 4428618 |
Mining machine control signal processing system |
Jan. 31, 1984 |
| 4371209 |
Mining machine steering equipment |
Feb. 1, 1983 |
| 4367900 |
Mineral mining installation with electronic control |
Jan. 11, 1983 |
| 4351565 |
Roof sensing control of shearer in longwall mining |
Sep. 28, 1982 |
| 4290648 |
Mining apparatus |
Sep. 22, 1981 |
| 4279443 |
Mining apparatus |
Jul. 21, 1981 |
| 4269448 |
Mineral mining machine cutter driving mechanism having a load sensing device to regulate the haulage speed of the machine when the cutter driving mechanism is overloaded |
May. 26, 1981 |
| 4260191 |
Method and apparatus to control tension in a trailing cable and/or waterhose for a mining machine |
Apr. 7, 1981 |
| 4228508 |
Automatic longwall mining system and method |
Oct. 14, 1980 |
| 4189183 |
Mining machine with cutter drums and sensing apparatus |
Feb. 19, 1980 |
| 4185876 |
Plural spaced cutter drums on pivotable elongate arm with loading means in the space |
Jan. 29, 1980 |
| 4130319 |
Mining machines |
Dec. 19, 1978 |
| 4111487 |
Underground mining machine with longwall guidance system |
Sep. 5, 1978 |
| 4099782 |
Control system for a mineral mining installation |
Jul. 11, 1978 |
| 4097091 |
Method and apparatus for securing mining machines employed on inclined or steep seams |
Jun. 27, 1978 |
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