Wrench for engaging nut flats to inhibit marring the nut

Claim 1

A WRENCH FOR A WRENCH-NUT SYSTEM OF THE CLASS WHEREIN THE NUT HAS A CENTRAL AXIS ABOUT TO ROTATE AND AN EVEN-NUMBERED PLURALITY OF FLAT BOUNDING SURFACES PARALLEL TO SAID AXIS WITH DIAMETRICALLY OPPOSITE PARIS PARALLEL TO EACH OTHER, SAID BOUNDING SURFACES INTERSECTING IN ADJACENT PAIRS TO FORM NUT CORNERS; SAID WRENCH COMPRISING: A BODY CONTAINING A NUT-ENGAGING CAVITY HAVING A CENTRAL AXIS ADAPTED TO BE PLACED COINCIDENT WITH SAID NUT AXIS ABOUT WHICH TO BE ROTATE, A PLURALITY OF PLANAR SURFACES AT LEAST PARTIALLY BOUNDING THE CAVITY, AND BEING PARALLEL TO SAID AXIS AND SO ARRANGED AND DISPOSED RELATIVE TO EACH OTHER AS TO INTERSECT, IN PAIRS, AT AT LEAST ONE PAIR OF DIAMETRICALLY OPPOSITE LOCATIONS, SO AS TO FORM APEXES OF DIHEDRAL ANGLES, SAID APEXES BEING DISPOSED INWARDLY TOWARD SAID CAVITY, EACH OF SAID LOCATIONS BEING OPPOSITE AND SPACED AWAY FROM A PORTION OF A BOUNDING SURFCE WHEN SAID NUT AND CAVITY ARE DISPOSED IN SYMMETRICAL RELATIONSHIP TO EACH OTHER, WITH AT LEAST ONE OF SAID INTERSECTING PLANAR SURFACES ANGULATED OUTWARDLY AWAY FROM THE PLANE OF SAID BOUNDING SURFACE, SAID PORTION BEING SPACED AWAY FROM THE MIDDLE OF SAID BOUNDING SURFACE BY A DISTANCE DEFINED BY LINE EXTENDING FROM SAID CENTRAL COINCIDENTAL AXES AND FORMING AN ANGLE WITH AN OTHER LINE EXTENDING THROUGH SAID AXES AND BISECTING SAID BOUNDING SURFACE, THE MAGNITUDE OF SAID ANGLES BEING SUCH THAT THERE ARE FOUR TIMES AS MANY SUCH ANGLES, ALL OF EQUAL MAGNITUDE, POSSIBLE IN A COMPLETE CIRCLE INSCRIBED WITHIN SAID CAVITY AROUND SAID AXES, AS THERE ARE BOUNDING SURFACES ON SAID NUT, THE OUTER ENDS OF ADJACENT PLANAR SURFACES AWAY FROM SAID APEXES BEING JOINED TO FORM CLEARANCE AREAS FOR SAID NUT CORNERS, SAID APEXES CONTACTING SAID BOUNDING SURFACES, WHEN SAID CAVITY IS ROTATED AROUND SAID COINCIDENT AXES, IN AREAS OF SAID BOUNDING SURFACES NEAR, BUT NOT ON, THE CORNERS OF SAID NUT.