Patent ID: 9248960
Filing Date: 2016-02-02
CPC Classification: B23P,B65D,Y10T

Claim Text:
1. A method for constructing a liquid storage tank with secondary containment means, said method comprising the steps of: (a) preparing a base course over a selected ground area; (b) providing a flexible secondary liner sized to cover the base area and inside walls of a secondary tank of selected size and configuration, and laying out the secondary liner over the base course; (c) providing a flexible primary liner sized to cover the base area and inside walls of a primary tank sized to fit within the perimeter of the secondary tank; (d) laying out the primary liner over the secondary liner, with an outer portion of the primary liner being rolled up to fit within the perimeter of the primary tank; (e) erecting a plurality of primary tank wall panels over the secondary liner to construct a primary tank wall having vertical joints between adjacent primary tank wall panels; (f) deploying the primary liner over the primary tank wall; (g) rolling up an outer portion of the secondary liner to fit within the perimeter of the secondary tank; (h) erecting a plurality of secondary tank wall panels over the base course to construct a secondary tank wall; and (i) deploying the secondary liner over the secondary tank wall.