Arch conduit

Details Arch conduit Arch conduit

1978-12-07

1981-01-20

Corbin, David H.

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

138119, 138121, 405 43, 405 49, E02B 1100, F16L 1111

Patent

active

042459249

ABSTRACT:
Disclosed is a foldable arched conduit suitable for use as drain tubing, culverts and the like. The conduit has the cross section of a parabolic arch with a flat base. The arched portion of the conduit comprises a pair of rigid corrugated plastic walls jointed at the apex area by a hinge. The base is constructed from a flexible sheet material which may contain apertures for liquid ingress and egress. For shipment, the rigid walls are folded inward about the hinge with the flexible sheet being folded between the rigid walls in order to present a generally flat configuration. After folding, the conduit may be conveniently rolled or length placed in parallel stacks for reducing the storage and/or shipping space required. At installation, the conduit may be unrolled along the installation site and then caused to expand into its unfolded shape.

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