초록 ▼

An overflow containment system for metal or fiberglass liquid storage tanks mounted within a liquid impermeable, secondary storage space. An open-topped, reinforced cast concrete base includes an internal thermal liner, liquid impermeable membrane, vault seal, tank cradles and support legs which def

An overflow containment system for metal or fiberglass liquid storage tanks mounted within a liquid impermeable, secondary storage space. An open-topped, reinforced cast concrete base includes an internal thermal liner, liquid impermeable membrane, vault seal, tank cradles and support legs which define secondary and tertiary containment spaces. Sloped interior walls direct liquid and/or condensation to a sump region and a siphon assembly. A vault cover is bonded to the tank and supports a number of projecting fill, vent, extraction, inspection, and monitor/siphon standpipes. Chamfered and flanged edges at the cover and lift hooks facilitate cover removal, alignment, and tank inspection. A spill containment collar is mounted about the fill pipe and a drain pipe directs spillage to the secondary storage space of the base.

대표청구항 ▼

[ What is claimed is:] [1.] Liquid containment apparatus comprising:(a) a base having a plurality of sidewalls that project from a bottom wall to define an open cavity;(b) tank means mounted within said open cavity for containing a liquid within a primary storage space;(c) a liquid impermeable membr

[ What is claimed is:] [1.] Liquid containment apparatus comprising:(a) a base having a plurality of sidewalls that project from a bottom wall to define an open cavity;(b) tank means mounted within said open cavity for containing a liquid within a primary storage space;(c) a liquid impermeable membrane mounted to encompass said tank means and terminating at a peripheral edge of said sidewalls, which membrane defines a secondary storage space in said open cavity that surrounds said tank means;(d) a cast cover which mounts to said sidewalls to cover the open cavity and wherein a fill pipe extends through said cover and communicates with the primary storage space; and(e) spill containment means including a housing mounted to surround said fill pipe for capturing spillage from said fill pipe and directing the spillage into said secondary storage space whereby tank leakage or spillage from filling or backup from the primary storage space is contained within the secondary storage space.