Reclosable corrugated carton

Claim 1

IN A CARTON HAVING A BOTTOM, FOUR VERTICAL SIDE WALLS AND A TOP OPENING, RECLOSABLE CLOSURE STRUCTURE OF SINGLE FACE CORRUGATED PAPERBOARD FOR SAID TOP OPENING COMPRISING, WHEN IN CLOSED POSITION: (1) A PAIR OF RECTANGULAR CLOSURE PANELS HINGEDLY CONNECTED BY HORIZONTAL FOLD LINES TO THE TOP EDGES OF A FIRST OPPOSED PAIR OF SAID SIDE WALLS AND DISPOSED GENERALLY PARALLEL TO SAID BOTTOM SO THAT EACH OF SAID CLOSURE PANELS COVERS APPROXIMATELY ONE HALF OF SAID TOP OPENING, THE CORRUGATIONS THEREON FACING DOWNWARDLY AND BEING PARALLEL TO SAID FOLD LINES; (2) A PAIR OF RECTANGULAR GUSSET PANELS HAVING THEIR BOTTOM EDGES HINGEDLY CONNECTED TO THE TOP EDGES OF A SECOND PAIR OF SAID SIDE WALLS AND HAVING THEIR SIDE EDGES HINGEDLY CONNECTED TO THE SIDE EDGES OF SAID PAIR OF CLOSURE PANELS, EACH OF SAID GUSSET PANELS BEING DIVIDED INTO A TRIANGULAR MAIN FLAP AND A PAIR OF TRIANGULAR CONNECTING WEBS HINGED TO THE SIDES OF SAID MAIN FLAP BY A PAIR OF WEAKENED LINES EXTENDING FROM THE BOTTOM CORNERS OF SAID GUSSET PANEL IN WARDLY TOWARD THE CENTER OF THE TOP EDGE THEREOF, THE CORRUGATIONS ON SAID MAIN FLAP EXTENDING DOWNWARDLY AND BEING PERPENDICULAR TO SAID FOLD LINES AND THE CORRUGATIONS ON SAID WEBS FACING UPWARDLY AND BEING PERPENDICULAR TO SAID FOLD LINES; SAID MAIN FLAP BEING FOLDED INWARDLY TO THEREBY FOLD SAID WEBS ABOUT SAID WEAKENED LINES TO A POSITION OVERLYING SAID MAIN FLAP, SAID CLOSURE PANELS OVERLYING SAID GUSSET PANELS; AND (3) A LOCKING TAB INTEGRAL WITH AND EXTENDING FROM THE FREE EDGE OF ONE OF SAID CLOSURE PANELS WITHITS CORRUGATIONS FACING DOWNWARDLY AND BEING PARALLEL TO SAID FOLD LINES, SAID LOCKING TAB BEING DISPOSED BELOW THE OTHER OF SAID CLOSURE PANELS AND OVERLYING THE OPPOSED PAIR OF WEBS LOCATED BELOW SAID OTHER CLOSURE PANEL SO THAT THE DOWNWARDLY EXTENDING CURRGUATIONS ON SAID LOCKING TAB ARE ENGAGED BY THE UPWARDLY EXTENDING CORRUGATIONS ON SAID OPPOSED PAIR OF WEBS AND THE FREE EDGE OF SAID LOCKING TAB IS ENGAGED BY THE DOWNWARDLY EXTENDING CORRUGATIONS ON SAID OTHER CLOSURE PANEL, WHEREBY THE CLOSURE STRUCTURE IS RETAINED IN CLOSED POSITION BY SAID LOCKING TAB.