Corrugated leaching chamber with hollow pillar supports

Details Corrugated leaching chamber with hollow pillar supports Corrugated leaching chamber with hollow pillar supports

2011-03-29

2011-03-29

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

C405S049000

Reexamination Certificate

active

07914230

ABSTRACT:
A plastic leaching chamber has an arch shape cross section, corrugations, and one or more hollow pillars extending downwardly within the interior of the chamber, to support the top of the chamber when the chamber is under load during use. Chambers nest within one another to form a stack of chambers for transport or storage. Chambers have peak corrugations which are substantially wider than the intervening valley corrugations. Chambers having different widths and profiles have common size connectors.

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