Boosted differential pressure-type tank valve

Details Boosted differential pressure-type tank valve Boosted differential pressure-type tank valve

1991-08-14

1992-09-29

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

137432, 137449, 251 46, F16K 3118, F16K 3300

Patent

active

051507323

ABSTRACT:
A tank valve for maintaining a water lever storage level in a tank. The tank valve includes differential pressure valve workings under control of a pivot member. A float enables the valve to open when resting on the pivot member and opens the valve when it rises free of the pivot member. A boost link depends from the pivot member to be boosted by the float near the end of its upward travel to assure closure of the valve working when an intended water level has be attained.

REFERENCES:
patent: 2809656 (1957-10-01), Goldtrap
patent: 3144874 (1964-08-01), Goldtrap
patent: 3144875 (1964-08-01), Goldtrap
patent: 3544219 (1971-01-01), Hudson
patent: 3729017 (1973-04-01), Brandelli
patent: 4186765 (1980-02-01), Anderson
patent: 4341238 (1982-07-01), Roosa et al.
patent: 4431024 (1984-02-01), Gallagher
patent: 4573495 (1986-03-01), Rothe et al.
patent: 4842011 (1989-06-01), Roosa

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