초록 ▼

A molded polyethylene salvage drum for containing hazardous wastes has a container having a solid side wall and a lid having a circular double-walled body. The container has a top portion provided on its exterior surface with male threads, an enlarged portion adjacent the threads, and a lower side w

A molded polyethylene salvage drum for containing hazardous wastes has a container having a solid side wall and a lid having a circular double-walled body. The container has a top portion provided on its exterior surface with male threads, an enlarged portion adjacent the threads, and a lower side wall portion adjacent the enlarged portion. An annular shoulder is formed on the container between the portion of enlarged diameter and the lower side wall. The lid has a skirt depending from the body of the lid. The interior surface of the skirt is provided with female threads mating with the male threads of the container. Castellations project upwardly from the lid body around the periphery thereof. The lid is molded so as to provide a plurality of kiss-off sections, in which the two walls of the body are molded together during rotational molding of the lid. The skirt of the lid terminates at its lower end in an outwardly extending lip with the outer diameter of the lip equal to the outer diameter of the enlarged diameter portion of the container. A gasket is provided in a circular recess in the lid for sealing engagement with the top edge of the container.

대표청구항 ▼

A salvage drum for containing hazardous wastes comprising: a container having a side wall and a circular bottom wall, said side wall having an exterior surface, an interior surface, an upper side wall portion, a lower side wall portion, and an enlarged diameter side wall portion intermediate the upp

A salvage drum for containing hazardous wastes comprising: a container having a side wall and a circular bottom wall, said side wall having an exterior surface, an interior surface, an upper side wall portion, a lower side wall portion, and an enlarged diameter side wall portion intermediate the upper and lower side wall portions, the exterior surface of the upper side wall portion being provided with male threads, said container having an annular shoulder formed between the lower side wall portion and the enlarged diameter side wall portion; and a lid having a double-walled body and a double-walled annular skirt depending from the double-walled body, said skirt having an interior circumferential surface and an exterior circumferential surface, the interior circumferential surface of said skirt being provided with female threads for mating with the male threads of said container.