Patent ID: 8460277

Claim:
An end effector, comprising: a tool including a drive configured to be coupled to and drive an engaging member for engaging a workpiece, and a release member configured to be displaced to permit decoupling of the engaging member from the drive; a housing configured to receive at least a portion of the tool; a release actuator disposed at least partially outside of the housing and coupled to the housing to permit movement between a first position and a second position to displace the release member to permit decoupling of the engaging member from the drive; a drive actuator for actuating the drive, wherein the drive actuator is configured to be moveable relative to the housing between a non-actuated position and an actuated position; wherein the release actuator includes an opening through which at least a portion of the drive actuator projects, and the release actuator is configured such that the drive actuator engages an end wall of the opening to prevent the drive actuator from moving to the actuated position when the release actuator is in the second position.