Corrugated leaching chamber with hollow ribbing

Details Corrugated leaching chamber with hollow ribbing Corrugated leaching chamber with hollow ribbing

1995-03-10

1998-02-10

Taylor, Dennis L.

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

405 36, 405 45, E02B 1300

Patent

active

057161631

ABSTRACT:
Large leaching chambers having hollow ribs are formed by gas assisted injection molding. The ribs have stepped cross sections with hollow bases and narrower solid upper parts. When the chamber wall is corrugated, as characterizes a typical arch shape cross section leaching conduit, hollow ribs on opposing sides of the wall are positioned to connect to each by means of holes in the undulating walls. Hollow ribs are narrowed along their length and where they interconnect, alleviating problems distortion and shrinkage problems. And, the chamber wall which surrounds the injection molding sprue is thinner than the typical wall, to avoid hollowing there.

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Infiltrator--The Engineered System for Total Storm-Water Management, Brochure, 4 pp. Infiltrator Systems Inc 1989.
Gain--Gas Assisted Injection Molding, Brochure, 6 pp., Detroit Plastic Molding, Unknown Date.
Hancor Envirochamber, Advertisement, 1 p. Hancor Inc (1995).
K. C. Rusch, Gas assisted Injection Molding Technical paper, 8 pp., 1989.

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