Assignee
EICKHOFF GEB
DE·68 granted patents·921 citations·filing 1974–1990
Top patents by PatentIndex Score
68 records- 0196US4027210AMethod and control system to limit shifting movement of a winning tool for a tunneling machineEICKHOFF GEB·Filed 1975·Granted May 31, 1977·48 cites·30 claims
- 0292US4082361ARack device for a mining machineEICKHOFF GEB·Filed 1976·Granted Apr 4, 1978·53 cites·22 claims
- 0390US4189183AMining machine with cutter drums and sensing apparatusEICKHOFF GEB·Filed 1978·Granted Feb 19, 1980·53 cites·10 claims
- 0489US4155600ASupport for movable segments in a rack for a drum cutter mining machineEICKHOFF GEB·Filed 1978·Granted May 22, 1979·46 cites·4 claims
- 0588US4518285AControl system for longwall mining roof supportsEICKHOFF GEB·Filed 1983·Granted May 21, 1985·40 cites·4 claims
- 0687US4023861AMethod and apparatus for controlling a tunneling machineEICKHOFF GEB·Filed 1975·Granted May 17, 1977·55 cites·8 claims
- 0786US4541607AHigh-pressure ball valveEICKHOFF GEB·Filed 1984·Granted Sep 17, 1985·46 cites·6 claims
- 0879US3988578AMethod and apparatus for controlling the steplessly variable cutting rate and feed rate of mining machinesEICKHOFF GEB·Filed 1975·Granted Oct 26, 1976·20 cites·12 claims
- 0978US4097091AMethod and apparatus for securing mining machines employed on inclined or steep seamsEICKHOFF GEB·Filed 1977·Granted Jun 27, 1978·21 cites·9 claims
- 1074US4212497ALiquid discharge apparatus for a shearing-loader type mining machineEICKHOFF GEB·Filed 1979·Granted Jul 15, 1980·20 cites·9 claims
- 1172US4067620ARack-driven mining machine with pivotal guide shoeEICKHOFF GEB·Filed 1976·Granted Jan 10, 1978·16 cites·7 claims
- 1268US4449738ARotary fluid couplingEICKHOFF GEB·Filed 1980·Granted May 22, 1984·24 cites·4 claims
- 1367US4397199AGear rack for a mining machineEICKHOFF GEB·Filed 1980·Granted Aug 9, 1983·20 cites·3 claims
- 1467US3980338AMethod and apparatus for controlling water sprays of an underground extraction machineEICKHOFF GEB·Filed 1974·Granted Sep 14, 1976·21 cites·9 claims
- 1565US4119350ACutter drumEICKHOFF GEB·Filed 1977·Granted Oct 10, 1978·15 cites·3 claims
- 1664US5051033ABracing device for a self-advancing shield tunnelling machineEICKHOFF GEB·Filed 1990·Granted Sep 24, 1991·35 cites·24 claims
- 1761US4260191AMethod and apparatus to control tension in a trailing cable and/or waterhose for a mining machineEICKHOFF GEB·Filed 1979·Granted Apr 7, 1981·16 cites·20 claims
- 1861US4184715ARack device for a drum cutter mining machineEICKHOFF GEB·Filed 1978·Granted Jan 22, 1980·10 cites·16 claims
- 1961US3940754AFluid detector device in a drive motor for an underground mining machineEICKHOFF GEB·Filed 1974·Granted Feb 24, 1976·11 cites·10 claims
- 2060US4373757AConveyor trough for a scraper conveyor for use with a mining machineEICKHOFF GEB·Filed 1980·Granted Feb 15, 1983·21 cites·7 claims
- 2160US4236758ARack drive for a drum cutter mining machineEICKHOFF GEB·Filed 1978·Granted Dec 2, 1980·10 cites·6 claims
- 2259US4328996ACutter drum support arm for longwall mining machineEICKHOFF GEB·Filed 1980·Granted May 11, 1982·19 cites·10 claims
- 2359US4189188ADrum cutter mining machineEICKHOFF GEB·Filed 1978·Granted Feb 19, 1980·9 cites·12 claims
- 2455US4850648AGear rack for driving or guiding a drum cutter loaderEICKHOFF GEB·Filed 1988·Granted Jul 25, 1989·19 cites·8 claims
- 2555US4813747ARack assembly for advancing a winning machineEICKHOFF GEB·Filed 1987·Granted Mar 21, 1989·18 cites·9 claims
- 2652US4166652AMining machine, particularly for the working of low mine seamsEICKHOFF GEB·Filed 1978·Granted Sep 4, 1979·7 cites·15 claims
- 2752US4103974ACable carriage and spill-plate housing assembly for a mining machineEICKHOFF GEB·Filed 1976·Granted Aug 1, 1978·9 cites·10 claims
- 2850US4162810ARack apparatus on a face conveyor for a mining machineEICKHOFF GEB·Filed 1978·Granted Jul 31, 1979·6 cites·10 claims
- 2948US4033626AMethod and apparatus for controlling a tunneling machineEICKHOFF GEB·Filed 1976·Granted Jul 5, 1977·11 cites·9 claims
- 3047US4396212ARotary fluid couplingEICKHOFF GEB·Filed 1980·Granted Aug 2, 1983·17 cites·11 claims
- 3146US4565410AApparatus for controlling the supply of high-pressure liquid to a cutter drum assemblyEICKHOFF GEB·Filed 1983·Granted Jan 21, 1986·13 cites·4 claims
- 3246US3945680ADrum coal cutting machine having a roller crusherEICKHOFF GEB·Filed 1974·Granted Mar 23, 1976·12 cites·12 claims
- 3342US4898428APower supply system for an underground mining machineEICKHOFF GEB·Filed 1988·Granted Feb 6, 1990·10 cites·9 claims
- 3442US3968754AChain drive arrangement for a mining machineEICKHOFF GEB·Filed 1975·Granted Jul 13, 1976·6 cites·29 claims
- 3540US4588230AControl for mining machineEICKHOFF GEB·Filed 1985·Granted May 13, 1986·10 cites·8 claims
- 3640US4471998ACutter drum assembly for longwall mining machinesEICKHOFF GEB·Filed 1982·Granted Sep 18, 1984·10 cites·6 claims
- 3740US4251112AApparatus for pivotally positioning a clearing shield for a drum-cutter mining machineEICKHOFF GEB·Filed 1979·Granted Feb 17, 1981·5 cites·5 claims
- 3838US4943120AForce transmitting housing for longwall mining machineEICKHOFF GEB·Filed 1988·Granted Jul 24, 1990·11 cites·12 claims
- 3938US4368925ACutter drum assembly for a longwall mining machineEICKHOFF GEB·Filed 1981·Granted Jan 18, 1983·9 cites·4 claims
- 4038US3967180APower supply system for extraction machine, especially a drum-cutting machineEICKHOFF GEB·Filed 1974·Granted Jun 29, 1976·10 cites·6 claims
- 4137US4025118ASpill-plate apparatus for a mining machineEICKHOFF GEB·Filed 1975·Granted May 24, 1977·5 cites·14 claims
- 4236US4615565ATunnel or road headerEICKHOFF GEB·Filed 1984·Granted Oct 7, 1986·3 cites·12 claims
- 4336US4302019ALabyrinthine mechanical sealEICKHOFF GEB·Filed 1980·Granted Nov 24, 1981·6 cites·6 claims
- 4436US4062442AShutoff control apparatus for a conveyorEICKHOFF GEB·Filed 1977·Granted Dec 13, 1977·4 cites·11 claims
- 4535US4773710ARack device for advancing a mining machineEICKHOFF GEB·Filed 1987·Granted Sep 27, 1988·8 cites·7 claims
- 4635US4217622AControl circuit for underground mining equipmentEICKHOFF GEB·Filed 1978·Granted Aug 12, 1980·5 cites·5 claims
- 4735US4085974ADrum cutterEICKHOFF GEB·Filed 1977·Granted Apr 25, 1978·3 cites·11 claims
- 4833US4828326AShearer loader for underground mining operationEICKHOFF GEB·Filed 1987·Granted May 9, 1989·8 cites·6 claims
- 4932US4478457ALongwall mining apparatus for working thick seamsEICKHOFF GEB·Filed 1983·Granted Oct 23, 1984·5 cites·8 claims
- 5032US4462619AMechanical sealing means for rotary fluid couplingEICKHOFF GEB·Filed 1981·Granted Jul 31, 1984·4 cites·5 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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