Spacerless or geocomposite double bottom for storage tank

Details Spacerless or geocomposite double bottom for storage tank Spacerless or geocomposite double bottom for storage tank

2003-11-19

2008-03-18

Castellano, Stephen J. (Department: 3781)

Receptacles

Stationary tank

Reexamination Certificate

active

07344046

ABSTRACT:
A spacerless double bottom apparatus for a storage tank having a metal bottom and upwardly extending metal sidewalls. The apparatus includes a first lining layer of flexible plastic on top of the metal bottom. A plastic grid having a plurality of openings therethrough is installed on top of the first lining layer. At least one layer of fiber insulation is installed and resides on top of the grid. An upper metal bottom on top of the fiber insulation is welded to the sidewalls to form a fluid tight secondary containment compartment.

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