Patent ID: 8220299

Claim:
A lock assembly adapted for use with a powered actuator, the lock assembly comprising: a housing with at least a first axially extending recess therein; a first barrel part within the first recess, the first barrel part having a first end and a second end, the first barrel part extending between the first end of the first barrel part and the second end of the first barrel part; a torque transmitting member adapted for abutment and releasable rotational engagement with a key; a first cam disposed around the first barrel part between the first end of the first barrel part and the second end of the first barrel part, the first cam adapted to operate a lock or latch mechanism and for rotational movement with the torque transmitting member; a drive device disposed around the barrel part and between the first end of the first barrel part and the second end of the first barrel part, the drive device adapted for engagement with the powered actuator and releasable engagement with the torque transmitting member; and a spring biasing the torque transmitting member towards engagement with the drive device, and wherein the torque transmitting member is positioned between the drive device and the first cam and is adapted to transmit torque from the drive device to the first cam, and wherein the absence of a key in the first barrel part allows the torque transmitting member to be moved by the spring into engagement with the drive device whereby pivoting movement of the drive device causes corresponding pivoting movement of the cam, and further wherein a key in the first barrel part engages and abuts the torque transmitting member and moves the torque transmitting member out of engagement with the drive device whereby pivoting movement of the key causes corresponding pivoting movement of the cam.