Actuator for viscous clutch with magnetic oil circulation valve

Adaptive control of externally controlled fan drive

Adjustable speed drive utilizing radially movable hollow pistons

Adjustable viscous shear coupling

Anti-flowback check valve for a viscous fluid clutch

Apparatus for controlled transmission of torque by means of a hy

Automatic thermal and speed controls for viscous fluid clutches

Automatic torque regulator

Automotive fan drive train assembly having a hydraulic coupler a

Automotive transmission

Baffle wall for a cover of a viscous fluid clutch and method

Blade for liquid friction couplings

Blade for liquid friction couplings

Centering abutment for viscous fluid drive

Change of state coupling

Closed loop pulse modulated viscous fan control

Clutch device

Clutch discs for a fluid friction clutch and process for making

Clutch plate with blocking wall for a viscous fluid clutch

Clutchless viscous fan drive wherein input member serves as...