Snap action float valve assembly for liquid feeding device

Details Snap action float valve assembly for liquid feeding device Snap action float valve assembly for liquid feeding device

1994-03-07

1995-08-29

Bertsch, Richard A.

Pumps

One fluid pumped by contact or entrainment with another

Liquid pumped by supplying or exhausting gaseous motive...

417134, 251 75, 137418, F04B 9123, F16K 3126, F16K 3156

Patent

active

054455014

ABSTRACT:
A device for feeding liquid under pressure comprises a vessel having an operating fluid inlet, an operating fluid outlet, an inlet opening for the liquid to be fed under pressure and an outlet opening for the liquid to be fed under pressure; a float disposed within said vessel; a change-over valve for alternately switching the operations of opening and closing the operating fluid inlet and outlet in response to the movement of the float; and a link mechanism. The link mechanism comprises a valve operating rod connected to the change-over valve and a compression spring supported at one end thereof by the valve operating rod and adapted not to cross any fulcrum at the time of operation thereof, and operates to move the valve operating rod in a snap motion in response to the movement of the float. The compression spring is supported by the valve operating rod so that the vector of action of the compression spring passes onto the point connecting the compression spring with the valve operating rod.

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Catalog for GestraPump (undated).
Catalog for Spirax Sarco pumps, 1990.

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