Drive adapter for torque responsive control

Claim 1

IN A POWER TOOL FOR DRIVING FASTENERS AND ADAPTED TO SET THE FASTENERS TO A PREDETERMINED TORQUE, THE COMBINATION OF A PRIMARY DRIVE MEMBER AND A MOTOR CONNECTED TO ROTATE SAID PRIMARY DRIVE MEMBER, AN INTERMEDIATE DRIVE MEMBER MOUNTED COAXIALLY WITH RESPECT TO PRIMARY DRIVE MEMBER ROTATABLE WITH RESPECT THERETO, A TORSION SPRING CONNECTED AT OPPOSITE ENDS TO SAID PRIMARY AND INTERMEDIATE DRIVE MEMBERS AND OPERATIVE TO PREVENT ROTATION THEREBETWEEN UP TO A PREDETERMINED TORQUE AT WHICH SAID SPRING WILL YIELD, A DRIVEN MEMBER ROTATABLY MOUNTED COAXIALLY WITH RESPECT TO SAID INTERMEDIATE DRIVING MEMBER AND INCLUDING AN ADAPTER FOR RECEIVING A FASTENER DRIVING TOOL TO DELIVER TORQUE TO SUCH TOOL, SAID DRIVEN MEMBER BEING MOUNTED FOR FREE ROTATION WITH RESPECT TO SAID INTERMEDIATE DRIVE MEMBER AND BEING AXIALLY FIXED WITH RESPECT TO SAID INTERMEDIATE DRIVE MEMBER, A DRIVING LUG EXTENDING FROM SAID INTERMEDIATE DRIVE MEMBER, AND A DRIVEN LUG ON SAID DRIVEN MEMBER POSITIONED TO BE ENGAGED BY SAID DRIVING LUG SUCH THAT A DRIVING TORQUE CAN BE APPLIED TO SAID DRIVEN MEMBER IN ONE DIRECTION OF ROTATION WITH SAID LUGS ENGAGED AND REVERSE MOTION OF SAID INTERMEDIATE DRIVEN MEMBER RESULTING FROM RELEASE OF ENERGY STORED IN SAID SPRING AFTER A FASTENER HAS BEEN SET WILL BE DISSIPATED BY SEPARATING MOVEMENT OF SAID LUGS IN THE OTHER DIRECTION OF ROTATION TO AVOID THE TRANSMISSION OF A REVERSE TORQUE TO THE DRIVEN MEMBER.