Staples with fin-like projections

Claim 1

A STAPLE INCLUDING A BODY OF RESILIENT WIRELIKE MATERIAL FORMED INTO A GENERALLY INVERTED U-SHAPED FORM WITH A PAIR OF LEGS EXTENDING FROM A BIGHT PORTION, THE OUTER ENDS OF THE STAPLE LEGS BEING POINTED, EACH OF SAID STAPLE LEGS HAVING FINS POSITIONED GENERALLY MEDIALLY THEREOF, EACH OF SAID FINS HAVING A THICKNESS LESS THAN THE THICKNESS OF SAID LEGS, EACH OF SAID FINS HAVING A SHAPE SUCH AS TO PRESENT A SHOULDER EXTENDING OUTWARDLY FROM THE MATERIAL OF THE LEGS WHILE FACING IN THE DIRECTION OF SAID BIGHT PORTION AND AN OUTER EDGE CONVERGING FROM SAID SHOULDER TO A POINT OF COINCIDENCE WITH SAID LEGS AT A POINT NEARER THE POINTED ENDS OF SAID LEGS THAN SAID BIGHT PORTION, EACH OF SAID FINS BEING INCLINED TO THE GENERAL PLANE DEFINED BY THE AXES OF THE STAPLE LEGS, SAID FINS HAVING A THICKNESS AND INCLINATION SUCH AS TO CAUSE A PARTIAL ROTATION OF SAID LEGS AND DEVELOP TWISTING FORCES IN SAID BIGHT PORTION WHEN SAID LEGS ARE DRIVEN INTO A HOLDING MATERIAL, THE RESILIENCY OF SAID BODY BEING SUCH AS TO CAUSE RESISTING ROTATIONAL FORCES IN SAID LEGS BUT IN THE OPPOSITE DIRECTION FROM SAID TWISTING FORCES AND THEREBY CAUSE SAID FINS TO DIG INTO SAID HOLDING MATERIAL WHEN SAID LEGS AND FINS ARE IN SAID HOLDING MATERIAL.