Roof drain

Details Roof drain Roof drain

1993-07-22

1995-11-28

Friedman, Carl D.

Static structures (e.g., buildings)

Cover with surface water receiver at eave or valley

With separator; e.g., strainer

52 20, 210163, 210166, 210460, B04D 1300, B03F 506

Patent

active

054696704

ABSTRACT:
A roof drain for draining rainwater from a roof. A bell-like strainer is supported by a compression/tension unit including resilient means, which unit is in turn mounted to a drainage sleeve that communicates with a leader. The strainer is secured to the drainage sleeve by a threaded bolt that passes through bores in the strainer and the compression/tension unit, and engages a nut received by the resilient means. Tightening the bolt moves the strainer downwardly into a substantially watertight fit with roofing membrane interposed between a skirt of the strainer and a collar on the drainage sleeve. The resilient means, which may be resilient material, a spring or the like, provides continuous tension between the strainer and the drainage sleeve.

REFERENCES:
patent: 1791512 (1931-02-01), Schurman
patent: 2284416 (1942-05-01), Gordon
patent: 2783852 (1957-03-01), Sisk
patent: 3349917 (1967-10-01), Strickland
patent: 3469698 (1969-09-01), Blendermann
patent: 3909412 (1975-09-01), Patry
patent: 4035297 (1977-07-01), Aldridge et al.
patent: 4257892 (1981-03-01), Boersma
patent: 4505814 (1985-03-01), Marshall
patent: 4507203 (1985-03-01), Johnston
patent: 4525273 (1985-06-01), Logsdon

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