Closed modular ditch liners

Details Closed modular ditch liners Closed modular ditch liners

2006-01-31

2006-01-31

Lee, Jong-Suk (James) (Department: 3673)

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

C405S121000, C210S747300

Reexamination Certificate

active

06991404

ABSTRACT:
A closed modular ditch liner includes a plurality of closed liner sections, a plurality of covers, and at least one alignment key. The cross section of each closed liner section includes at least one trough contour and a single cover retention lip formed on a top end of each side thereof. Each cover is laterally retained between the two cover retention lips. A key slot is preferably formed on at least one side of the closed liner section to receive a single alignment key. However, alignment keys that do not require a key slot may also be used.

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