초록 ▼

An assembly for controlling overfill of liquid to an underground storage tank during a filling operation comprises a dump tank, a fill tube positioned within the dump tank, piping with valve and a cover. The fill tube within the dump tank is encased with a shrink-fitting covering which extends from

An assembly for controlling overfill of liquid to an underground storage tank during a filling operation comprises a dump tank, a fill tube positioned within the dump tank, piping with valve and a cover. The fill tube within the dump tank is encased with a shrink-fitting covering which extends from the bottom portion of the dump tank to ensure a liquid tight overfill assembly.

대표청구항 ▼

An assembly for use with an underground liquid storage tank to control overfill of liquid during a filling operation, comprising: (a) a dump tank molded of one piece construction from a polymeric material having a reservoir portion with a bottom wall and a neck extending from the reservoir portion w

An assembly for use with an underground liquid storage tank to control overfill of liquid during a filling operation, comprising: (a) a dump tank molded of one piece construction from a polymeric material having a reservoir portion with a bottom wall and a neck extending from the reservoir portion wherein the bottom wall has an opening to accommodate a fill tube and the neck has an opening at its top whereby access is gained to the interior of the dump tank; (b) a fill tube securely positioned in said dump tank with a first extremity near the dump tank\s neck and a second extremity extending through the opening in the dump tank\s bottom wall, further wherein an extension of the bottom wall of the reservoir portion of the dump tank extends at least one inch along the fill tube\s length from the point where the fill tube\s second extremity enters said dump tank bottom wall to encase the at least one inch of the fill tube with a shrink-fit covering to ensure that liquid which spills into the dump tank will not seep therethrough; (c) piping which extends from the dump tank\s reservoir portion to the fill tube; (d) a directional flow control valve associated with the piping through which overfilled liquid can flow in response to opening of the flow control valve; and (e) a cover for fitting over the opening at the top of the dump tank neck so as to form a sealed closing of the dump tank.