Inventor
HOTGER KARL
DE5 patents
Patents
5 patentsUS4541607ASep 17, 1985
High-pressure ball valve
EICKHOFF GEB46 citations89
US4449738AMay 22, 1984
Rotary fluid coupling
EICKHOFF GEB24 citations79
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
US4302019ANov 24, 1981
Labyrinthine mechanical seal
EICKHOFF GEB6 citations59