Float valve assembly

Details Float valve assembly Float valve assembly

1978-12-19

1981-02-17

Schwadron, Martin P.

Fluid handling

Processes

137404, 137443, F16K 2118, F16K 3118

Patent

active

042509076

ABSTRACT:
For ensuring a quick cut-off of a float controlled valve, there is provided a float having a buoyant body and a receptacle for liquid on the body, a single first tube providing an inlet to and an outlet from the receptacle, and a second tube connected to the first tube at an angle directed towards the interior of the receptacle to permit a portion of the liquid from the valve to flow through the second tube into the receptacle to bias the float downwardly and therefore the valve to its maximum open position, the direction of flow of liquid from the second into the first tube acting to dam any liquid in the receptacle. When the valve approaches its closed position, the flow through the second tube decreases and liquid flows out of the receptacle so removing the bias on the float and allowing the float rapidly to rise and close the valve.

REFERENCES:
patent: 513474 (1894-01-01), Bate
patent: 947106 (1910-01-01), Kirk
patent: 2214792 (1940-09-01), Klotz
patent: 2439282 (1948-04-01), Beckett
patent: 2613686 (1952-10-01), Parson
patent: 3083724 (1963-04-01), Johnson
patent: 3522013 (1970-07-01), Borgeson

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