Drain cover assembly

Details Drain cover assembly Drain cover assembly

1978-05-24

1979-12-25

Schwadron, Martin P.

Fluid handling

With casing, support, protector or static constructional...

Static constructional installations

137357, 4295, E03F 512, A47K 114

Patent

active

041800940

ABSTRACT:
A drain cover assembly 10 for venting a drain 14 located below grade to the ground level is disclosed. The assembly includes a hollow frustro-conical drain cover 12 which opens downward to cover the top of a floor drain 14. The lower annular end surface 64 of the drain cover 12 is provided with a rubber seal to engage the top of the drain 14. The drain cover is held in place by a jack screw which extends between a recess 46 in the top of the drain cover and the structure above, typically the ceiling of a basement. A flexible conduit is connected with the drain cover and extends upward through a window 20 or other opening to the ground level. When water from a sewer system backs up through the drain 14, hydrostatic pressure forces the water through the flexible conduit 18 to a location remote from the building in which the drain is located.

REFERENCES:
patent: 1577039 (1926-03-01), Lafin
patent: 2131240 (1938-09-01), Tucker
patent: 2246012 (1941-06-01), Sanders
patent: 2517195 (1950-08-01), Gaspar
patent: 2773619 (1956-12-01), Moeller
patent: 2816574 (1957-12-01), Bots
patent: 2892467 (1959-06-01), Weisman et al.
patent: 2928419 (1960-03-01), Kruse
patent: 2970605 (1961-02-01), Sargent
patent: 3093154 (1963-06-01), Nielsen
patent: 4035297 (1977-07-01), Aldridge et al.
patent: 4074684 (1978-02-01), Biesel
patent: 4112527 (1978-09-01), Giubilo

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