Reinforced containers

Claim 1

A BULK CONTAINER COMPRISING AN UPSTANDING TUBULAR SLEEVE AND A CLOSURE ASSEMBLY DISPOSED IN TELESCOPING RELATION OVER ONE END THEREOF; THE TUBULAR SLEEVE COMPRISING A PLURALITY OF FOLDABLY CONNECTED WALL PANELS INCLUDING AT LEAST THREE PAIR OF PANELS IN RESPECTIVE OPPOSED, PARALLEL RELATION AND WITH TOP AND BOTTOM EDGES; THE CLOSURE ASSEMBLY COMPRISING AN END CAP AND LOCKING REINFORCING PAD; THE END CAP INCLUDING A CENTRAL CLOSURE PANEL COEXTENSIVE WITH THE TUBULAR SLEEVE END EDGE CONFORMATION; A PLURALITY OF WALL FLANGES, CORRESPONDING IN NUMBER TO THE SLEEVE WALL PANELS, AND HINGEDLY CONNECTED TO SIDE EDGES OF THE CENTRAL CLOSURE PANEL; THE WALL FLANGES INCLUDING ALTERNATING SINGLE AND DOUBLE THICKNESS PANELS; AND EXTENSION OF THE SINGLE THICKNESS FLANGES FIXEDLY SESURED BETWEEN INNER AND OUTER PLIES OF THE DOUBLE THICKNESS FLANGE; THE REINFORCING PAD BEING IN FLATWISE SUBSTANTIALLY COEXTENSIVE RELATION TO THE END CAP CENTRAL CLOSURE PANEL AND HAVING ALTERNATE RECESSED EDGES ADAPTED TO RECEIVE FREE END EDGES OF THE DOUBLE THICKNESS FLANGE INNER PLY THUS SECURING THE REINFORCING PANEL IN FIXED RELATION TO THE END CAP CENTRAL PANEL AND THE WALL FLANGES TO EACH OTHER AND IN RIGHT ANGULAR RELATION TO THE CENTRAL CLOSURE PANEL.