Laminated sheet for protecting underground vertical walls

Details Laminated sheet for protecting underground vertical walls Laminated sheet for protecting underground vertical walls

1989-06-26

1990-09-18

Scherbel, David A.

Static structures (e.g., buildings)

Specified terranean relationship

With drain or vent exterior to foundation perimeter

5216914, 405 45, 405 36, E02D 3102

Patent

active

049569511

ABSTRACT:
A laminated sheet which is useful as part of an underground drainage system for a basement is disclosed, and which includes a layer of polystyrene and at least one layer of a polyolefin laminated to one side of the polystyrene layer. The laminated sheet is molded so as to include an array of spaced apart projections extending laterally outwardly from one side of the laminated sheet thereby forming a series of drainage channels.

REFERENCES:
patent: 3654765 (1972-04-01), Healy et al.
patent: 4503106 (1985-03-01), Logliano
patent: 4670071 (1987-06-01), Cooper et al.
patent: 4681786 (1987-07-01), Brown
patent: 4704048 (1987-11-01), Ahlgrimm
patent: 4730953 (1988-03-01), Tarko
patent: 4760674 (1988-08-01), Brand et al.
patent: 4840515 (1989-06-01), Freese
patent: 4880333 (1989-11-01), Glasser et al.

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