Composite container

Claim 1

A composite container comprising an open top rigid body member having a bottom portion and a side wall portion terminating in a peripheral upper edge having a shoulder formed therein at the inner periphery of said edge and offset downwardly from the plane of said edge to provide an annular space, a plurality of spaced ribs extenDing longitudinally of said body side walls on the inner surface thereof, an expendible thin wall open top liner having a bottom portion and a side wall portion terminating in an outwardly extending peripheral flange at its top edge, said liner wall portion being adapted to rest against said ribs with the liner flange resting against said shoulder and occupying said annular space, a cap having a peripheral lower outer rim adapted to fit closely and simultaneously against both said liner flange and the extreme upper edge of said body member when said liner is installed in said body member, and resilient clamping means pivotally mounted upon said body member and adapted selectively to press said cap against said flange, said body member having a thicker cross section adjacent the upper edge thereof than at other portions of said body member and serving to reinforce the rigidity of said body member and to provide a strong mounting for said cap clamping means.