Inventor
HINTZEN ULLRICH
DE16 patents
Patents
16 patentsUS5173199ADec 22, 1992
Apparatus for use in replacing a worn pouring pipe and for adjusting molten metal flow through a pouring pipe
DIDIER WERKE AG14 citations73
US5037017AAug 6, 1991
Horizontal or vertical rotary valve for a metallurgical vessel
DIDIER WERKE AG5 citations73
US4949886AAug 21, 1990
Horizontal or vertical rotary valve for a metallurgical vessel
DIDIER WERKE AG10 citations73
US4913324AApr 3, 1990
Rotary valve for a metallurgical vessel and rotor and stator therefor
DIDIER WERKE AG10 citations73
US5072864ADec 17, 1991
Carbon-containing wearable refractory parts
DIDIER WERKE AG12 citations72
US4575439AMar 11, 1986
Method of producing a refractory brick
DIDIER WERKE AG11 citations66
US5413744AMay 9, 1995
Process for inductive heating of ceramic shaped parts
DIDIER WERKE AG5 citations62
US5230813AJul 27, 1993
Stator and rotor members for use in apparatus for closing and/or regulating the discharge or tapping of molten metal
DIDIER WERKE AG4 citations62
US5145634ASep 8, 1992
Closing or regulating apparatus for a metallurgical vessel
DIDIER WERKE AG3 citations62
US5085344AFeb 4, 1992
Apparatus for closing and/or regulating the discharge or tapping of molten metal
DIDIER WERKE AG2 citations62
US5183624AFeb 2, 1993
Shutoff assembly and improved drive rod therefor
DIDIER WERKE AG3 citations61
US5025961AJun 25, 1991
Refractory shutoff assembly capable of improved emergency closing
DIDIER WERKE AG4 citations61
US4994216AFeb 19, 1991
Process of making carbon-bonded refractory shaped articles
DIDIER WERKE AG3 citations58
US5083688AJan 28, 1992
Rotary valve for a metallurgical vessel and rotor and stator therefor
DIDIER WERKE AG1 citations52
US5106060AApr 21, 1992
Components for forming a closing and/or regulating apparatus for tapping molten metal from a metallurgical vessel
DIDIER WERKE AG0 citations51
US5080265AJan 14, 1992
Apparatus for closing and/or regulating the tapping of molten metal
DIDIER WERKE AG0 citations40