Storage tanks with secondary containment means and non-visual leak detection means
OwnerBruce R. Sharpinventor
Life of this patent
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Abstract
A storage tank system especially useful for storing liquid gasoline comprises a rigid inner tank encased by a flexible outer jacket to form a closed space, detecting liquid in the closed space and non-visual leak detection means associated with the closed space. The system results in a storage facility which is less likely to lose its stored liquid to the environment due to a slow leak or a sudden large leak such as is possible with an earthquake. The system is monitored for leakage in a reliable yet economical fashion.
Claims19
An underground storage tank system for liquids having secondary containment capability and leakage detection capability, comprising:
- (a) a rigid inner tank for storing the liquid, having fill pipe and dispensing line;
- (b) a flexible jacket capable of withstanding sudden stresses without breaking and having sufficient strength to contain any liquid leaked from the rigid inner tank, said flexible jacket encasing the inner tank so as to form a closed space between the tank and the jacket;
- (c) detecting liquid which at least partially fills the closed space;
- and
- (d) non-visual leak detection means associated with the closed space for detecting any change in level of detecting liquid.
Dependencies are inferred from the claim text.