Set screw with center of gravity located to permit orientation

Claim 1

A HEADLESS SET SCREW COMPRISING A SUBSTANTIALLY CYLINDRICAL BODY HAVING A LONGITUDINAL AXIS, ONE END OF SAID BODY HAVING A WORK ENGAGING CONE-SHAPED PORTION EXTENDING THEREFROM AND SUBSTANTIALLY CONCENTRIC WITH SAID LONGITUDINAL AXIS, THE OTHER END OF SAID BODY BEING RECESSED FOR ENGAGEMENT BY A TORQUE APPLYING TOOL FOR EFFECTING ROTATION OF SAID SCREW ABOUT SAID LONGITUDINAL AXIS, A PLURALITY OF TURNS OF THREAD OF NORMAL FORM ON SAID BODY ABOUT THE LONGITUDINAL AXIS THEREOF AND EXTENDING TO SAID ONE END THEREOF, THE LONGITUDINAL MID-POINT OF THE THREAD TURNS OF NORMAL MAJOR DIAMETER OF SUCH A SCREW HAVING THE THREAD TURNS OF NORMAL MAJOR DIAMETER EXTENDING TO AN INTERSECTION WITH SAID CONE-SHAPED PORTION BEING LOCATED SUBSTANTIALLY AT THE CENTER OF GRAVITY THEREOF, AND SAID BODY PORTION HAVING AN EXTERNALLY TAPERED SURFACE EXTENDING OUTWARDLY FROM SAID CONE-SHAPED PORTION TO A THREAD TURN OF NORMAL MAJOR DIAMETER, THE ANGLE BETWEEN SAID TAPERED SURFACE AND SAID LONGITUDINAL AXIS BEING LESS THAN THE ANGLE BETWEEN THE OUTER SURFACE OF SAID CONE-SHAPED PORTION AND SAID LONGITUDINAL AXIS, SAID TAPERED SURFACE INTERSECTING SAID OUTER SURFACE OF SAID CONE-SHAPED PORTION ALONG A CIRCLE HAVING A DIAMETER NO GREATER THAN THE NORMAL MINOR DIAMETER OF SAID THREAD TURNS, THE LONGITUDINAL DISTANCE BETWEEN THE INTERSECTION OF SAID TAPERED SURFACE AND SAID CONE-SHAPED PORTION AND THE INTERSECTION OF SAID TAPERED SURFACE AND THE MAJOR DIAMETER OF SAID THREAD TURNS BEING LESS THAN THE LONGITUDINAL EXTENT OF A THREAD TURN, THE LONGITUDINAL MID-POINT OF THE REMAINING THREAD TURNS OF NORMAL MAJOR DIAMETER OF SAID SCREW HAVING SAID TAPERED SURFACE THEREON BEING DISPLACED SUBSTANTIALLY FROM THE CENTER OF GRAVITY THEREOF TOWARD SAID TORQUE APPLYING END, WHEREBY SAID SCREW WILL READILY GRAVIMETRICALLY ORIENT ITSELF WITH SAID CONE-SHAPED PORTION DOWN AND SAID SCREW WILL HAVE A SUBSTANTIALLY FULL NORMAL THREAD TURN IMMEDIATELY ADJACENT TO SAID CONESHAPED PORTION.