Interlockable drainage system

Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control

Reexamination Certificate

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Details

C405S119000, C405S121000, C405S270000

Reexamination Certificate

active

11114546

ABSTRACT:
The specification and drawing figures describe and show an interlockable drainage system insertable into a ditch that includes two or more liner sections. Each liner section includes a plurality of corrugations that are asymmetrical. The interlockable drainage system also includes a flared channel extending from opposing edges of the liner sections. A shoulder is formed in the opposing ends of the liner sections. A plurality of bosses is formed on the shoulder. The plurality of bosses on one shoulder is compressibly connectable to the plurality of bosses on an opposing shoulder, thus connecting one liner section to another. A connector is provided for added interconnectability of the plurality of bosses. This abstract is provided to comply with rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure, but this abstract is not to be used to interpret or limit the scope or meaning of any claim.

REFERENCES:
patent: 195989 (1877-10-01), Culver
patent: 856702 (1907-06-01), Howley
patent: 3156099 (1964-11-01), Dailey
patent: 3446025 (1969-05-01), Koch
patent: 3854292 (1974-12-01), Nienstadt
patent: 6227763 (2001-05-01), Kuhns
patent: 6692186 (2004-02-01), Suazo et al.
patent: 6722818 (2004-04-01), Suazo et al.
U.S. Appl. No. 10/837,213, filed Apr. 30, 2004, Suazo et al.

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