Liquid enclosure with automatic air bleeding valve

Details Liquid enclosure with automatic air bleeding valve Liquid enclosure with automatic air bleeding valve

2011-08-23

2011-08-23

Schneider, Craig (Department: 3753)

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

C137S198000

Reexamination Certificate

active

08001992

ABSTRACT:
A liquid enclosure has an automatic air bleeding valve which has a first stage wherein the fluid pathway is open and a one-way valve is interposed in the fluid pathway; a second stage wherein the fluid pathway is open and circumvents the one-way valve; and a third stage wherein the fluid pathway is closed. A float automatically transitions the valve from the first, then second, then third stage as a level of the liquid in the liquid holding chamber rises from below the first to above the second predetermined level, and the valve automatically returns from the third stage to the second stage, then to the first stage as the level of the liquid in the liquid holding chamber lowers from above the second to below the first predetermined level.

REFERENCES:
patent: 4342329 (1982-08-01), Roff
patent: 4520839 (1985-06-01), Roff

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