Composite above ground liquid storage vault
AssigneeHoover Group, Inc.
InventorDarleen K. Bauer
Life of this patent
Estimating the term…
Abstract
A composite above ground liquid storage vault. The vault includes an inner tank defining a containment cavity for the liquid. The inner tank is enclosed within an insulating layer and a monitor tube is positioned adjacent to the insulating layer so as to extend to a location exterior of the vault. A liquid impervious membrane encapsulates the monitor tube, the insulating layer and the inner tank. The encapsulated inner tank is positioned within an outer tank and spaced apart from the interior surfaces of the outer tank by spacers supporting the encapsulated inner tank. A structural and insulating material is located within this space so as to completely surround the inner tank and form a fire wall.
Claims20
A composite above ground liquid storage vault comprising:
- an inner tank having exterior surfaces defined by a bottom wall, side walls and a top wall cooperating to define a primary containment cavity, said cavity adapted to receive and store liquids therein, said inner tank also including at least one fitting, said fitting enabling the liquid to be disposed into or discharged from said inner tank of said vault;
- a first layer covering said exterior surfaces and substantially encapsulating said inner tank, said first layer being formed of an insulative material and said fitting extending from said inner tank and through said first layer;
- an upright monitor tube exteriorly positioned relative to said first material and said inner tank, said monitor tube having a pair of ends, one of said ends being located generally adjacent to said bottom wall and the other of said ends being located generally above said top wall of said inner tank;
- a second layer exteriorly covering said monitor tube, said first layer and said inner tank thereby forming an encapsulated inner tank, said second layer being formed of a liquid impervious material and forming a liquid impervious barrier completely around said monitor tube, said first layer and said inner tank;
- an outer tank having a bottom wall, side walls and a top wall cooperating to define a receiving cavity adapted to receive said encapsulated inner tank, said fitting extending from said inner tank through said outer tank and terminating at a location exterior of said outer tank;
- spacer means located within said outer tank for supporting said encapsulated inner tank in spaced apart relation from interior surfaces of said outer tank;
- and
- a third layer disposed within and filling said space between said outer tank and said encapsulated inner tank so as to substantially completely encase said encapsulated inner tank therein, said third layer being a structural material protecting said inner tank from rupture, further insulating said inner tank and providing said vault with a firewall.
Dependencies are inferred from the claim text.