Storage tanks having formed rigid jacket for secondary containment
OwnerBruce R. Sharpinventor
Life of this patent
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Abstract
A method of making a jacketed storage tank comprises applying a separating agent over the storage tank, applying a layer of fibrous reinforcing material on the separating agent, and thereafter applying a resinous material. The resultant jacket, covering at least about 40% of the surface area of the storage tank, is structurally independent therefrom. True secondary containment can be provided by the jacket. A fail safe containment storage tank system is provided by the use of a leak detector to monitor the closed space between the storage tank and jacket for tank or jacket leakage.
Claims38
A method of adding secondary containment capability to a rigid storage tank, comprising the steps of:
- (a) applying a gas pervious material to a rigid storage tank so that a subsequently formed jacket will not adhere to the tank;
- and
- (b) applying a fibrous reinforcing material and resinous material onto the gas pervious material to cover at least about 40% of the surface area of the storage tank so that when cured, a jacket independent of the storage tank is formed having sufficient structural strength to contain the liquid in the rigid storage tank which may leak therefrom and having the capability of withstanding external load forces normally encountered by underground storage tanks without suffering substantial surface deformation.
A storage tank for liquids having secondary containment capability, comprising
- (a) a rigid inner tank for storing the liquid;
- (b) a gas pervious material positioned on the inner tank;
- and
- (c) a jacket made of fibrous reinforced resinous material which covers the gas pervious material and at least about 40% of the surface area of the storage tank to form a closed space, said jacket being structurally independent from the rigid inner tank because of the gas pervious material, having sufficient structural strength to contain liquid in the rigid inner tank which may leak therefrom, and being capable of withstanding external load forces normally encountered by underground storage tanks without suffering substantial surface deformation.
Dependencies are inferred from the claim text.