Patent ID: 7500548

Claim:
A dual mode one-way torque transmitting device comprising: an inner race including a first plurality of notches mutually spaced about an axis; an intermediate race including a second plurality of notches mutually spaced about the axis, and a first plurality of pockets mutually spaced about the axis; a first plurality of rockers, each rocker of the first plurality of rockers being located in a pocket of the intermediate race; a spring for urging a rocker of the first plurality of rockers toward engagement with a notch on the inner race; an outer race including a second plurality of pockets spaced mutually about the axis; a second plurality of rockers, each rocker of the second plurality of rockers being located in a pocket on the outer race; and a hydraulic actuator alternately operating to engage and to disengage a rocker on the outer race and a notch on the intermediate race and including a second spring that produces a force tending to disengage a rocker on the outer race and a notch on the intermediate race.