Panel liner and method of making same

Details Panel liner and method of making same Panel liner and method of making same

2006-03-28

2006-03-28

Colaianni, Michael P. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

C264S036160, C264S040400, C264S136000, C264S137000, C264S256000, C264S257000, C264S333000, C285S015000, C285S055000

Reexamination Certificate

active

07018577

ABSTRACT:
A method of forming a liner for a passage such as a sewer includes forming panels composing the liner using a neat resin of a first density and a polymer concrete of a second, higher density. The neat resin is inserted into a mold cavity before the polymer concrete and is displaced upwardly by the polymer concrete pour to impregnate a fiber layer disposed along the periphery of the mold cavity. Resulting panels preferably have an offset joint to increase the joint strength between upper and lower panels forming the liner.

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English Machine Translation of JP 2003-81681 A, Japanese Patent Office website, Jul. 2005.

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