Double-walled flexible dispenser sump connection system
OwnerThomas Ingraminventor
Life of this patent
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Abstract
A double-walled flexible dispenser sump connection system prevents fuel leaks into a dispenser sump located below a fuel dispenser. An inner flexible connector and an outer flexible connector are configured such that the dispenser sump connection system may be installed on newly constructed fuel delivery systems or be retrofitted onto existing fuel delivery systems in order to bring them into compliance with recently environmental regulations.
Claims6
For use in conjunction with a fuel supply system comprising a piping system having an inner pipe and an outer pipe, the inner pipe for conveying fuel between a tank and a dispenser and the outer pipe surrounding the inner pipe for containment of leaks therefrom, a dispenser having a shear valve at the bottom thereof for directing fuel into the dispenser, and a dispenser sump located beneath the dispenser, a dispenser sump connection system for preventing fuel leaks into the dispenser sump comprising:
- an inner flexible connector coupled between the inner pipe and the shear valve for completing the conveyance of fuel into the dispenser;
- an outer flexible connector coupled between the outer pipe and the shear valve enclosing the inner flexible connector and containing any fuel leaks therefrom;
- and
- means for maintaining a predetermined pressure within the interstitial space between the inner flexible connector and the outer flexible connector.
Dependencies are inferred from the claim text.