Environmentally safe underground piping system

Details Environmentally safe underground piping system Environmentally safe underground piping system

1992-03-25

1994-03-29

Taylor, Dennis L.

Hydraulic and earth engineering

Fluid control, treatment, or containment

405128, 405258, 588249, F16L 100

Patent

active

052978966

ABSTRACT:
An environmentally safe underground piping system for liquid fuels and chemicals which interconnects an underground liquid storage tank to one or more above ground liquid dispensing units, that provides a complete secondary containment system for the entire primary liquid supply piping system. The piping systems employs one tank access chamber interconnected to one or more dispenser access chambers by a double walled pipe. The double wall pipe provides an interstitial space for gravity flow of any leaking liquids, from any point in the primary liquid supply piping system, to an access chamber, which also serves as a liquid collection sump, for purposes of leak detection.

REFERENCES:
patent: 4659251 (1987-04-01), Petter et al.
patent: 4932257 (1990-06-01), Webb
patent: 4958957 (1990-09-01), Berg et al.
patent: 4968179 (1990-11-01), Frahm
patent: 4971477 (1990-11-01), Webb et al.
patent: 5030033 (1991-07-01), Heintzelman et al.
patent: 5098221 (1992-03-01), Osborne

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