Inventor
KONRAD MATHIAS
DE11 patents
Patents
11 patentsUS4568114AFeb 4, 1986
Threaded pipe connector
WALTERSCHEID GMBH JEAN33 citations92
US4468206AAug 28, 1984
Torque-limiting clutch
WALTERSCHEID GMBH JEAN32 citations92
US5318375AJun 7, 1994
Lock for securing a coupling sleeve
WALTERSCHEID GMBH JEAN38 citations89
US4538715ASep 3, 1985
Overload clutch with vibration protection mechanism
WALTERSCHEID GMBH JEAN24 citations81
US4490125ADec 25, 1984
Lubricated wide angle joint
WALTERSCHEID GMBH JEAN22 citations81
US4958859ASep 25, 1990
Pre-assembly muff for the cutting or clamping ring of a pipe coupling
WALTERSCHEID GMBH JEAN8 citations73
US4791716ADec 20, 1988
Method and apparatus for securing a connector to a pipe
WALTERSCHEID GMBH JEAN7 citations73
US4501570AFeb 26, 1985
Adjustable friction clutch
WALTERSCHEID GMBH JEAN12 citations73
US4464136AAug 7, 1984
Lubricated wide angle universal joint
WALTERSCHEID GMBH JEAN8 citations73
US4464077AAug 7, 1984
Coupling device for drive shafts
WALTERSCHEID GMBH JEAN14 citations73
US5052724AOct 1, 1991
Threaded swivel connector
WALTERSCHEID GMBH JEAN15 citations66