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US 5,330,288 AGranted
Underground storage tank
AssigneeInq. Nino Ferrari USA Inc.
InventorFranco Ferrari
Life of this patent
Estimating the term…
Abstract
Underground storage tank consisting of an internal metal structure (1), of a static external facing (2) and of a filler (4) such a hot blown bitumen located between the metal structure (1) and the static facing (2), the outer surface of the metal structure (1) presenting welded structural shapes (7) properly spaced and cross connected to increase the bond between the metal structure (1) and the filler (4).
Claims6
An underground liquid storage tank, comprising:
- (a) an annular metal liner extending along a generally longitudinal axis, said liner including a plurality of curved plates having interior surfaces bounding a liquid storage chamber, and exterior surfaces located opposite the interior surfaces;
- (b) an annular concrete facing concentric with said axis, surrounding the liner, and bounding an annular space with the exterior surfaces of the plates;
- (c) a plurality of structural elements fixedly mounted on the exterior surfaces of the plates and located within said annular space;
- and
- (d) a viscous, settable, elastic filler filling said annular space and encapsulating the elements therein to form a strengthened elastic bond between the liner and the filler.
2 more elements
Dependencies are inferred from the claim text.