Static structures (e.g. – buildings) – Wall – ceiling – floor – or roof designed for ventilation or...
Patent
1996-02-26
1997-11-25
Friedman, Carl D.
Static structures (e.g., buildings)
Wall, ceiling, floor, or roof designed for ventilation or...
52198, E04B 170
Patent
active
056899289
ABSTRACT:
A roof drain for draining rain water from a flat roof comprises a conduit, with a roof flange, a strainer for straining debris from the water entering the drain, having an openable cap. The roof flange extends peripherally outwardly around the top of the conduit, and provides a connection between the surface of the roof. The conduit provides a connection with a drainage pipe located beneath the surface of the roof. The roof flange has a flat outer top surface and an recessed inner portion with a shoulder connecting the inner and outer portions of the roof flange. The strainer includes a hollow strainer basket with open bottom and top faces and side walls containing a plurality of apertures, and a strainer flange extending peripherally outwardly around the bottom edge of the side walls of the strainer basket. The outside dimension of the strainer flange is sized to fit within the recessed portion of the roof flange. The shoulder of the roof flange is crimped over the strainer flanger to non-removably rigidly couple the strainer to the roof flange. The openable cap provides selective access to the interior of the strainer to facilitate periodic cleaning and maintenance of the interior of the roof drain.
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Friedman Carl D.
Metalcraft Spinning & Stamping (Tor.) Ltd.
Smith Creighton
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