Folding tub with automatic bottom

Claim 1

A cut and scored unitary paperboard blank for forming a tub adapted to be shipped in a collapsed condition, said blank comprising: a. first and second major panels joined along a fold line; b. a glue flap foldably connected to one or said panels along another fold line; c. flanges foldably connected to the bottom edges of said panels and foldable thereagainst for stiffening said panels; d. a first substantially circular panel foldably attached to the lower edge of one of said major panels for forming an inner bottom panel of a tub when the same is erected; e. a second substantially circular panel foldably attached to the lower edge of the other of said major panels for forming an outer bottom panel of said tub; f. said second circular panel having a fold line extending substantially medially thereof and dividing said panel into two substantially equal halves adapted to be folded against one another; g. said first and second circular panels each having a pair of foldable ears hingedly attached thereto along the edges thereof and foldable into position between said flanges and said bottom edge of said major panels when said blank is erected into a tub.