Subterranean plastic tank

Details Subterranean plastic tank Subterranean plastic tank

1979-02-14

1981-03-10

Pollard, Steven M.

Receptacles

Outlet or junction box type

Sectional receptacle

220 5A, 220 83, B65D 638

Patent

active

042548853

ABSTRACT:
A thin-walled, one-piece plastic tank for subterranean storage and transmission of sewage or other materials. The tank comprises a bottom wall, an arched top wall and opposed end walls. The top wall is substantially semi-circular in cross-section with a plurality of corrugations therearound. Along the apex area of the arch is a pair of manhole-like openings with an arced strengthening rib therebetween. The bottom wall is generally arced in cross-section with a radius very large compared to the radius of the cross-section of the top wall which causes the bottom wall to be generally flat. The end walls are arced in the longitudinal, cross-sectional and horizontal planes. The end walls each have a plurality of corrugations. In the root of one of the corrugations is a depression which contains a horizontal aperture for the egress or ingress of fluid materials. The bottom wall has a plurality of corrugations mating with the top wall corrugations such that the corrugations circumscribe the tank. Further, the bottom wall has a pair of regions one adjacent each end wall which contain a plurality of triangular indentations in a truss-like configuration.

REFERENCES:
patent: 951556 (1910-03-01), Bossingham
patent: 2963191 (1960-12-01), Setzekorn et al.
patent: 3583623 (1971-06-01), Golner et al.
Wedco, La Fosse Septique en Polyethylene.
Wedco, Septic Tank, 1-750.0.
Fiber Erectors, The Modern, Lightweight Sewage System.
Soltralco, Ensembles d'Assainissement Eparation.
HBA Cast Products Co., Check The Advantages of HBA's Fiberglass Septic Tanks.

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