Inventor

DENKOWSKI WALTER J

3 patents

Patents

3 patents

US4474078AOct 2, 1984

Valve operator de-clutch mechanism

PHILADELPHIA GEAR CORP25 citations77

US4022309AMay 10, 1977

De-clutch mechanism for valve operator

PHILADELPHIA GEAR CORP19 citations71

US4280373AJul 28, 1981

Portable drive unit for valve actuator

PHILADELPHIA GEAR CORP19 citations64