Torque releasing clutch mechanism

Claim 1

A ROTARY POWER WRENCH CONTAINING A TORQUE RESPONSIVE CLUTCH ADAPTED TO RELEASE AT A PREDETERMINED TORQUE LOAD, COMPRISING: (A) A TOOL MOTOR; (B) A CLUTCH DRIVEN BY SAID MOTOR AND INCLUDING A PAIR OF CLUTCH MEMBERS ADAPTED TO BE ENGAGED FOR TRANSMITTING THE TORQUE OF SAID MOTOR AND DISENGAGED FOR RELEASING THE MOTOR; (C) ONE OF SAID CLUTCH MEMBERS INCLUDING A FIRST FACE; (D) THE OTHER CLUTCH MEMBER INCLUDING A SECOND FACE AXIALLY SPACED FROM THE FIRST FACE AND AXIALLY ALIGNED WITH SAID ONE CLUTCH MEMBER; (E) ONE OF SAID CLUTCH MEMBERS INCLUDING AN AXIALLY EXTENDING PASSAGE EXTENDING AWAY FROM ITS FACE AND ADAPTED TO HOLD A PLURALITY OF KEY BALLS; (F) A GROOVE FORMED IN ONE OF SAID FACES AND EXTENDING FROM THE AXIS OF ROTATION OF SAID MEMBERS TO A POINT SPACED RADIALLY FROM SAID AXIS; (G) A ROW OF KEY BALLS FILLING SAID GROOVE AND EXTENDING INTO SAID PASSAGE; (H) SAID OTHER FACE OPPOSITE SAID GROOVE ENGAGING SAID KEY BALLS AND PREVENTING THEM FROM FALLING OUT OF THE GROOVE; (I) SAID OTHER FACE INCLUDING A SHOULDER LOCATED TO ENGAGE THE KEY BALLS AND URGE THEM OUT OF SAID GROOVE INTO SAID PASSAGE AS A TORQUE LOAD IS APPLIED TO SAIDDRIVING CLUTCH MEMBER;