Patent ID: 7347305

Claim:
An actuator for an electro-mechanical-brake motor assembly, said actuator comprising; a rotatable motor shaft having a longitudinal axis, a housing surrounding said rotatable motor shaft, a latch gear non-rotatably supported on said rotatable motor shaft with said latch gear circumscribing said longitudinal axis, an electromagnetic device disposed within said housing circumscribing said longitudinal axis, a spring supported by said housing and circumscribing said longitudinal axis and extending radially outwardly about said latch gear, and a latching device presenting a keyed connection with said housing to prevent relative rotation therebetween while allowing relative axial movement therealong and supported by said spring for axial movement between a non-latched position and latched position in engagement with said latch gear in response to a magnetic force generated by said electromagnetic device and against the biasing action of said spring to flex said spring to prevent a rotational movement of said rotatable motor shaft.