Sewage relief valve

Details Sewage relief valve Sewage relief valve

1976-07-23

1978-09-19

Schwadron, Martin P.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137445, 137448, F16K 3120

Patent

active

041146417

ABSTRACT:
A sewage relief valve includes a cylindrical housing mounted on the upper end of an upper end of a riser connected to a sewer line, the housing includes a cylindrical through-bore with the upper end of the bore sealed by means of a dome cover held in place by a resilient O-ring, and a float supported beneath the housing on a lift linkage is responsive to rise with the level of liquid in the riser for forcing the cover from the end of the housing thereby relieving the sewage line. The lift linkage means is supported within the housing by support means which permits the linkage to be lifted and carried upward out of the housing by the float means when liquid flows therethrough.

REFERENCES:
patent: 1113648 (1914-10-01), Karlson
patent: 1222611 (1917-04-01), Emory
patent: 1233654 (1917-07-01), Dziatkiewicz
patent: 1268947 (1918-06-01), Fell
patent: 2098131 (1937-11-01), Bluhm
patent: 2506022 (1950-05-01), Irvine
patent: 2539076 (1951-01-01), Harris
patent: 2804880 (1957-09-01), Rasmusson
patent: 2835269 (1958-05-01), Seymour
patent: 2936775 (1960-05-01), Hinkson et al.
patent: 3007484 (1961-11-01), Hallinan

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