Carpet anchoring strip

Claim 1

AN INTEGRAL METAL TACK STRIP FOR CARPETING COMPRISING A LONGITUDINALLY EXTENDING BODY MEMBER GENERALLY U-SHAPED IN TRANSVERSE CROSS SECTION TO DEFINE A GENERALLY FLAT HORIZONTAL TACK SURFACE AND SPACED LEG MEMBERS PROJECTING THEREFROM AND ENGAGEABLE WITH A FLOOR TO BE CARPETED TO SPACE SAID TACK SURFACE THEREABOVE, AND A PAIR OF TRANSVERSELY SPACED LONGITUDINALLY EXTENDING AND STAGGERED SERIES OF SPACED CARPET-IMPALING HOOK MEMBERS UPSTANDING FROM SAID TACK SURFACE AND INCLINED TRANSVERSELY THEREOF, EACH OF SAID HOOK MEMBERS INCLUDING SIDE EDGES SPACED FROM EACH OTHER AND BEING ARCUATELY SHAPED IN TRANSVERSE CROSS SECTION BETWEEN SAID SIDE EDGES AND INTEGRALLY JOINED TO SAID TACK SURFACE ALONG AN ARCUATE JOINT LINE CONTAINED SUBSTANTIALLY IN THE PLANE OF SAID TACK SURFACE, AND WHEREIN SAID LEG MEMBERS PROJECT DIVERGENTLY FROM SAID TACK SURFACE, AND FURTHER COMPRISING A PLURALITY OF SPACED UPSTANDING GROOVES DISPOSED OPPOSITE EACH OTHER IN SAID RESPECTIVE LEG MEMBERS TO RIGIDIFY THE LATTER, A PLURALITY OF LONGITUDINALLY SPACED TRANSVERSELY EXTENDING DEPRESSIONS IN SAID TACK SURFACE, EACH OF SAID DEPRESSIONS INCLUDING TRANSVERSELY SPACED APERTURES AT OPPOSITE ENDS THEREOF TO RECEIVE THE LEGS OF A STAPLE THERETHROUGH TO SECURE SAID BODY MEMBER IN A FIXED POSITION ON THE FLOOR TO BE CARPETED, AND EACH OF SAID HOOK MEMBERS BEING FORMED A PIECE OF METAL MATERIAL STRUCK FROM SAID TACK SURFACE TO DEFINE AN OPENING IN THE LATTER, WHEREBY A PLURALITY OF TACK STRIPS MAY BE NESTED UPON EACH OTHER WITH A LOWER ONE OF SAID TACK STRIPS HAVING ITS LEG MEMBERS INCLUDING SAID GROOVES THEREIN AND ITS TACK SURFACE INCLUDING SAID DEPRESSIONS THEREIN NESTED WITH THE CORRESPONDING PORTIONS OF A TACK STRIP IMMEDIATELY THEREABOVE, SAID RESPECTIVE HOOK MEMBERS OF SAID LOWER ONE OF SAID TACK STRIPS PROJECTING THROUGH SAID OPENINGS IN SAID TACK SURFACE OF SAID TACK STRIP IMMEDIATELY THEREABOVE AND NESTING WITH THE CORRESPONDING HOOK MEMBERS OF THE LATTER.