Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1980-11-24
1982-11-16
Pollard, Steven M.
Receptacles
Outlet or junction box type
Sectional receptacle
220 5A, 220 83, B65D 638
Patent
active
043591671
ABSTRACT:
A corrugated, thin walled plastic tank is ideally suited for subterranean storage and transmission of sewage and other materials. The tank has a bottom wall which terminates in a peripheral edge disposed in a horizontal plane. A corrugated, peripheral wall extends upward from the peripheral edge to an apex area. The corrguations of the peripheral wall include alternating crown and root portions. A peripheral rib extending circumferentially around the peripheral wall is defined by a plurality of rib portions which are disposed in the root portions of the corrugations. Each rib portion has a rib outer portion which is substantially flush with the adjoining crown portions and rib side portions which extend from the rib outer portion into the adjacent root portion. An indentation area is formed by enlarging one of the root portions. An annular sleeve depends from the indentation area into the interior of the tank to provide a fluid access with the interior of the tank. An annular rim is disposed in the apex area surrounding another opening for providing access to the interior of the tank.
REFERENCES:
patent: D207293 (1967-03-01), Ferm
patent: D233887 (1974-12-01), Bower
patent: D234298 (1975-02-01), Bower
patent: D234461 (1975-03-01), Piotrowski
patent: D239506 (1976-04-01), Myers
patent: 3662918 (1972-05-01), Crawford et al.
patent: 4231482 (1980-11-01), Bogan
patent: 4254885 (1981-03-01), Fouss et al.
Wedco, La Fosse, Septique on Polyethylene.
Wedco, Septic Tank 1-750.0.
Fiber Erectors, The Modern, Lightweight Sewage System.
Soltralco, Ensembles d'Assainissement Eparation.
Fouss James L.
Lytle Donald A.
Parker John J.
Hancor, Inc.
Pollard Steven M.
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