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US 4,524,609 AGranted
Storage tank systems
OwnerBruce R. Sharpinventor
Life of this patent
Estimating the term…
Abstract
A storage tank system especially useful for storing liquid gasoline comprises a rigid outer tank fitted with a bladder and an analyzer. 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.
Claims28
A liquid storage tank system comprising:
- (a) an outer tank shell having rigid walls fitted with a fill pipe, a dispensing line and a vent pipe;
- (b) a bladder adapted for fitting within the outer tank shell to hold the liquid, said bladder having openings with means for sealed connection with the fill pipe, dispensing line and vent pipe or points at which the fill pipe, dispensing line and vent pipe enter the outer tank shell;
- (c) gas permeable material positioned between the bladder and the walls of the outer tank shell;
- (d) vacuum means in communication with the space occuppied by the gas permeable material;
- and
- (e) an analyzer in communication with the space within the inner walls of the rigid tank shell and the outside of the bladder.
3 more elements
A fail-safe liquid storage tank system based on a double walled bladder, comprising:
- (a) an outer tank shell having rigid walls fitted with a fill pipe, a dispensing line and a vent pipe;
- (b) a double walled bladder adapted for fitting within the outer tank shell comprising an inner bladder to hold the liquid and an outer bladder encasing the inner bladder, said bladders having openings with means for sealed connection with the fill pipe and dispensing line or points at which the fill pipe and dispensing line enter the outer tank shell;
- and
- (c) an analyzer in communication with the space between the two bladders.
1 more element
A liquid storage tank system utilizing a probe for detecting leakage, comprising:
- (a) an outer tank shell having rigid walls fitted with a fill pipe, a dispensing line and a vent pipe;
- (b) a bladder adapted for fitting within the outer tank shell to hold the liquid, said bladder having openings with means for sealed connection with the fill pipe and dispensing line or points at which the fill pipe and dispensing line enter the outer tank shell and wherein the bladder is adhesively bonded to the walls of the outer tank shell;
- and
- (c) a probe positioned between the inner walls of the outer tank shell and the outside of the bladder, said probe being capable of detecting selected gases and/or liquids.
1 more element
Dependencies are inferred from the claim text.