Containment assembly for fill pipe of underground storage tanks

Fluent material handling – with receiver or receiver coacting mea – With soil removing – coating – lubricating – sterilizing and/or... – Drip collection

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141 98, 141311A, 220 861, 404 25, 137312, B65B 306, B65G 500

Patent

active

052170527

ABSTRACT:
An assembly intended for use on underground storage tanks provides ready access to a fill pipe from ground level. At the same time the assembly serves as a spill containment means for accidental spillage and a secondary containment means for the fill pipe. The assembly of the invention comprises a secondary containment chamber having a sidewall with means for attaching to the storage tank. An anchor ring which is attached to an upper open end of the containment chamber acts as a permanent ground base for the assembly. A bridging surface cover within the anchor ring has a removable lid positioned in its interior portion to gain access to the chamber's interior for a filling operation. The assembly also comprises a fill pipe for delivering liquid to the storage tank. The fill pipe is positioned within the secondary containment chamber with a discharging end extending through the chamber's bottom and a receiving end terminating within the chamber but near the bridging surface cover. An open top spill compartment is positioned within the secondary containment chamber and at the receiving end of the fill pipe so as to encompass the fill pipe's receiving end for the purpose of catching any spilled liquid from the filling operation. The spill compartment also prevents any of the spilled liquid and vapors from entering the secondary containment chamber.

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