초록 ▼

A three-piece tank assembly including a tank, a support base, and a support liner. The tank has a conical bottom with a discharge conduit at its apex; a longitudinally corrugated antisplash filling trough integrally formed with a sidewall of the tank; and an integrally formed cover including a bungh

A three-piece tank assembly including a tank, a support base, and a support liner. The tank has a conical bottom with a discharge conduit at its apex; a longitudinally corrugated antisplash filling trough integrally formed with a sidewall of the tank; and an integrally formed cover including a bunghole for providing access to the filling trough. The discharge conduit may include a flow valve and check valve. The base includes a sidewall for nesting engagement with the tank sidewall, a flat ground-engaging surface and transverse longitudinal slots for receiving the forks of a forklift. The support liner has an upstanding wall and a conical top wall for supporting the conical bottom of the tank and nesting within the support base. Mating projections and grooves in the tank and support base prevent relative movement of the three elements of the tank assembly. Each of the three elements is rotationally molded of cross-linked, high density polyethylene. Also disclosed is a method of forming an open-ended, inwardly projecting tubular member, or an open-ended outwardly projecting conduit, with or without a flange at its distal end, in a molded container.

대표청구항 ▼

A molded plastic tank assembly comprising: a removable molded plastic tank having an upstanding sidewall, a downwardly sloped and inwardly converging bottom wall joined to said sidewall, and an outlet adjacent the lowest portion of said bottom wall; a molded plastic support base having a lower groun

A molded plastic tank assembly comprising: a removable molded plastic tank having an upstanding sidewall, a downwardly sloped and inwardly converging bottom wall joined to said sidewall, and an outlet adjacent the lowest portion of said bottom wall; a molded plastic support base having a lower ground engaging surface, an upper portion for supporting said tank, and an upstanding base wall; a removable molded plastic support insert having a bottom portion supported on the upper portion of said base, a sloped upper surface which mates with said bottom wall of said tank to removably support said tank on said support base, and an upstanding sidewall; said base wall of said support base extending upwardly and overlapping both the sidewall of said tank and the sidewall of said support insert.