Static structures (e.g. – buildings) – Wall – ceiling – floor – or roof designed for ventilation or...
Patent
1993-08-30
1994-12-06
Friedman, Carl D.
Static structures (e.g., buildings)
Wall, ceiling, floor, or roof designed for ventilation or...
523094, 523098, 5230912, 5230917, 52408, 527414, 52747, 428158, 428160, 428163, E04B 700, E04C 210, E04C 232
Patent
active
053699262
ABSTRACT:
The specification discloses foam insulation board for use in plaza deck construction, the upper and lower surfaces of which contain drainage channels. To avoid problems of easy breakage, especially of the kind associated with larger foam insulation boards having upper and lower drainage channels, the present invention discloses orienting the lower surface drainage channels 90.degree. with respect to the upper surface drainage channels, such that the two opposing surfaces of channels are perpendicular to each other.
REFERENCES:
patent: 3000144 (1961-09-01), Kitson
patent: 3016317 (1962-01-01), Brunner
patent: 3222697 (1965-12-01), Scheermesser
patent: 4703604 (1987-11-01), Muller
patent: 5160785 (1992-11-01), Davidson
Canfield Robert J.
Friedman Carl D.
The Dow Chemical Company
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