Floating drain seal apparatus

Details Floating drain seal apparatus Floating drain seal apparatus

1989-09-27

1990-06-26

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

4287, F16K 3122, F16K 3300

Patent

active

049363387

ABSTRACT:
A floating drain seal organization is utilized in combination with a drain formed with a conical bottom surface and a coaxially aligned outlet pipe. A float plug with a complementary conical bottom surface is spaced from the bottom surface of the drain to effect passage of drainage water therebetween. The float includes a planar top surface cooperative with an annular tubular seal coaxially spaced exteriorly of a circular matrix of openings. The float includes a hemispherical depression formed coaxially into its top surface to receive a hemispherical bottom portion of a seal coaxially aligned within the drain to effect sealing of the drain when a plugged or a slowed drain condition backs up drainage water therethrough.

REFERENCES:
patent: 576790 (1897-02-01), O'Brien
patent: 1423679 (1922-07-01), Pavitchich
patent: 1982555 (1934-11-01), Van Der Horst
patent: 2531721 (1950-11-01), Brock
patent: 2627868 (1953-02-01), Runnels
patent: 2758664 (1956-08-01), Koenig
patent: 2787376 (1957-04-01), Coulson
patent: 3829636 (1974-08-01), Scott
patent: 4088149 (1978-05-01), Logsdon
patent: 4104004 (1978-08-01), Graef
patent: 4296778 (1981-10-01), Anderson

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