Patent ID: 7263865

Claim:
An electro-mechanically operated lock comprising: a lock bolt movable between locking and unlocking positions; an engagement element having disengaged and engageable positions; an electric actuator having a rotatable output; a mechanical linkage assembly coupling said engagement element with said rotatable output of said electric actuator, said mechanical linkage assembly including a cam pin associated with said engagement element and a cam surface movable by said rotatable output relative to said cam pin; and a manually operated drive member configured to be operatively coupled by said engagement element with said lock bolt when said engagement element is in said engageable position for driving said lock bolt from said locking position to said unlocking position, said cam surface of said mechanical linkage assembly coacting with said cam pin of said mechanical linkage assembly to guide the movement of said engagement element when said drive member is manually operated for driving said lock bolt from said locking position to said unlocking position.