Inventor
WITTKOPP HELMUT
DE15 patents
⚠️ This page may combine multiple inventors who share the name “WITTKOPP HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEGENSCHEIDT GMBH WILHELM
14 patentsUS4802285AFeb 7, 1989
Method and apparatus for ascertaining the radial location of a new wheel profile to be produced by a reprofiling operation
HEGENSCHEIDT GMBH WILHELM34 citations89
US4798963AJan 17, 1989
Apparatus for monitoring and measuring the quality of rail wheel still mounted beneath a rail vehicle without directly contacting the rail wheels
HEGENSCHEIDT GMBH WILHELM65 citations88
US4116094ASep 26, 1978
Method and apparatus for centering a wheel set
HEGENSCHEIDT GMBH WILHELM21 citations81
US4799839AJan 24, 1989
Method and apparatus for performing a rotary broaching operation particularly on work pieces of rotational symmetry
HEGENSCHEIDT GMBH WILHELM12 citations71
US4195957AApr 1, 1980
Boring tool with floating double edged knife
HEGENSCHEIDT GMBH WILHELM11 citations71
US4265149AMay 5, 1981
Method and apparatus for truing railroad wheels
HEGENSCHEIDT GMBH WILHELM7 citations69
US4200012AApr 29, 1980
Method and apparatus for truing railroad wheels
HEGENSCHEIDT GMBH WILHELM8 citations69
US4939962AJul 10, 1990
Method and apparatus for influencing the motion of a movable member
HEGENSCHEIDT GMBH WILHELM16 citations68
US4437328AMar 20, 1984
Crankshaft glaze or smooth rolling machine
HEGENSCHEIDT GMBH WILHELM14 citations66
US4211129AJul 8, 1980
Method for producing a bore
HEGENSCHEIDT GMBH WILHELM10 citations63
US4895057AJan 23, 1990
Machine tool for broaching crankshaft connecting rod bearings
HEGENSCHEIDT GMBH WILHELM4 citations60
US4861204AAug 29, 1989
Turn broaching tool
HEGENSCHEIDT GMBH WILHELM2 citations60
US4711146ADec 8, 1987
Method for reprofiling profiles of wheel sets
HEGENSCHEIDT GMBH WILHELM6 citations56
US4119001AOct 10, 1978
Method of and machine for reprofiling a railroad-car wheel
HEGENSCHEIDT GMBH WILHELM2 citations53