Corrugated septic tank with strengthening features

Details Corrugated septic tank with strengthening features Corrugated septic tank with strengthening features

2009-06-05

2011-12-06

Grosso, Harry (Department: 3781)

Receptacles

Sectional

Tank for fluids

C220S670000

Reexamination Certificate

active

08070005

ABSTRACT:
A molded thermoplastic tank for use as a septic tank or storage tank when buried in soil has a combination of transverse peak and valley corrugations in combination with one or more lengthwise peak corrugations, to provide in effect a molded-in beam structure. The lengthwise corrugations may be at the top, between spaced apart access ports, along the bottom. In one embodiment, the top has an H-shape pattern beam structure. In another embodiment separately formed plastic beams and or a combination of vertical and horizontal struts are inside the tank.

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