Assignee
EICKHOFF GEB
68 patents
Top patents by PatentIndex Score
US4027210AMay 31, 1977
Method and control system to limit shifting movement of a winning tool for a tunneling machine
EICKHOFF GEB48 citations93
US4189183AFeb 19, 1980
Mining machine with cutter drums and sensing apparatus
EICKHOFF GEB53 citations91
US4082361AApr 4, 1978
Rack device for a mining machine
EICKHOFF GEB53 citations91
US4541607ASep 17, 1985
High-pressure ball valve
EICKHOFF GEB46 citations89
US4155600AMay 22, 1979
Support for movable segments in a rack for a drum cutter mining machine
EICKHOFF GEB46 citations89
US4518285AMay 21, 1985
Control system for longwall mining roof supports
EICKHOFF GEB40 citations88
US5051033ASep 24, 1991
Bracing device for a self-advancing shield tunnelling machine
EICKHOFF GEB35 citations86
US4397199AAug 9, 1983
Gear rack for a mining machine
EICKHOFF GEB20 citations82
US4328996AMay 11, 1982
Cutter drum support arm for longwall mining machine
EICKHOFF GEB19 citations82
US4023861AMay 17, 1977
Method and apparatus for controlling a tunneling machine
EICKHOFF GEB55 citations82
US3988578AOct 26, 1976
Method and apparatus for controlling the steplessly variable cutting rate and feed rate of mining machines
EICKHOFF GEB20 citations82
US3980338ASep 14, 1976
Method and apparatus for controlling water sprays of an underground extraction machine
EICKHOFF GEB21 citations82
US4449738AMay 22, 1984
Rotary fluid coupling
EICKHOFF GEB24 citations79
US4097091AJun 27, 1978
Method and apparatus for securing mining machines employed on inclined or steep seams
EICKHOFF GEB21 citations78
US4212497AJul 15, 1980
Liquid discharge apparatus for a shearing-loader type mining machine
EICKHOFF GEB20 citations77
US4898428AFeb 6, 1990
Power supply system for an underground mining machine
EICKHOFF GEB10 citations74
US4260191AApr 7, 1981
Method and apparatus to control tension in a trailing cable and/or waterhose for a mining machine
EICKHOFF GEB16 citations74
US3940754AFeb 24, 1976
Fluid detector device in a drive motor for an underground mining machine
EICKHOFF GEB11 citations74
US4588230AMay 13, 1986
Control for mining machine
EICKHOFF GEB10 citations72
US4184715AJan 22, 1980
Rack device for a drum cutter mining machine
EICKHOFF GEB10 citations72
US4067620AJan 10, 1978
Rack-driven mining machine with pivotal guide shoe
EICKHOFF GEB16 citations72
US4773710ASep 27, 1988
Rack device for advancing a mining machine
EICKHOFF GEB8 citations71
US4189188AFeb 19, 1980
Drum cutter mining machine
EICKHOFF GEB9 citations71
US4565410AJan 21, 1986
Apparatus for controlling the supply of high-pressure liquid to a cutter drum assembly
EICKHOFF GEB13 citations70
US4471998ASep 18, 1984
Cutter drum assembly for longwall mining machines
EICKHOFF GEB10 citations70
US4166652ASep 4, 1979
Mining machine, particularly for the working of low mine seams
EICKHOFF GEB7 citations70
US3945680AMar 23, 1976
Drum coal cutting machine having a roller crusher
EICKHOFF GEB12 citations70
US4396212AAug 2, 1983
Rotary fluid coupling
EICKHOFF GEB17 citations69
US4373757AFeb 15, 1983
Conveyor trough for a scraper conveyor for use with a mining machine
EICKHOFF GEB21 citations69
US4368925AJan 18, 1983
Cutter drum assembly for a longwall mining machine
EICKHOFF GEB9 citations69
US4943120AJul 24, 1990
Force transmitting housing for longwall mining machine
EICKHOFF GEB11 citations68
US4850648AJul 25, 1989
Gear rack for driving or guiding a drum cutter loader
EICKHOFF GEB19 citations68
US4828326AMay 9, 1989
Shearer loader for underground mining operation
EICKHOFF GEB8 citations68
US4236758ADec 2, 1980
Rack drive for a drum cutter mining machine
EICKHOFF GEB10 citations68
US4119350AOct 10, 1978
Cutter drum
EICKHOFF GEB15 citations68
US4813747AMar 21, 1989
Rack assembly for advancing a winning machine
EICKHOFF GEB18 citations67
US4103974AAug 1, 1978
Cable carriage and spill-plate housing assembly for a mining machine
EICKHOFF GEB9 citations66
US3967180AJun 29, 1976
Power supply system for extraction machine, especially a drum-cutting machine
EICKHOFF GEB10 citations66
US4033626AJul 5, 1977
Method and apparatus for controlling a tunneling machine
EICKHOFF GEB11 citations65
US4270072AMay 26, 1981
Current supply circuit of cutting drum motors on a mining machine
EICKHOFF GEB3 citations63
US4889393ADec 26, 1989
Drum cutter-loader for underground mining machine
EICKHOFF GEB4 citations61
US4615565AOct 7, 1986
Tunnel or road header
EICKHOFF GEB3 citations61
US4478457AOct 23, 1984
Longwall mining apparatus for working thick seams
EICKHOFF GEB5 citations61
US4465320AAug 14, 1984
Cutter drum assembly for longwall mining machines
EICKHOFF GEB2 citations61
US4394053AJul 19, 1983
Nozzle holder for cutter drum in longwall mining machinery
EICKHOFF GEB3 citations61
US4451091AMay 29, 1984
Track for a longwall mining machine
EICKHOFF GEB2 citations60
US4162810AJul 31, 1979
Rack apparatus on a face conveyor for a mining machine
EICKHOFF GEB6 citations60
US4405178ASep 20, 1983
Cutter bit for a mining machine
EICKHOFF GEB14 citations59
US4307915ADec 29, 1981
Gear rack for longwall mining machine
EICKHOFF GEB2 citations59
US4302019ANov 24, 1981
Labyrinthine mechanical seal
EICKHOFF GEB6 citations59
Showing the top 50 of 68 patents by PatentIndex Score.