Liner for waste water system rehabilitation
OwnerJames M. Humeinventor
Life of this patent
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Abstract
A technique and device for rehabilitating or repairing waste water system components or the like, comprising a spray-applied, multi-layer liner which seals the components and imparts structural integrity. The liner comprises a primer layer, a first moisture barrier layer, a foam layer and a second moisture barrier layer. The first and second moisture barrier layers are preferably made of the same material and form a skin on both sides of the internal foam layer. The combination of the foam layer and the two moisture barrier layers imparts structural strength and rigidity to the cured liner.
Claims21
A bi-layer liner for lining concrete structures comprising:
- a surfacer layer and a barrier layer, said barrier layer being disposed on said surfacer layer.
A multi-layer liner for lining a concrete structure comprising:
- (a) a first barrier layer;
- (b) a surfacer layer disposed on said first barrier layer;
- and
- (c) a second barrier layer disposed on said surfacer layer.
A method for lining concrete structures comprising:
- (a) cleaning a surface of a concrete structure;
- (b) applying a foam liner material to said surface of said concrete structure.
Dependencies are inferred from the claim text.