Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1998-03-31
1999-08-03
Michalsky, Gerald A.
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137 43, F16K 2404
Patent
active
059311835
ABSTRACT:
A liquid cutoff valve unit provided for a sealed container in which a liquid fills comprises a discharge passage formed to an upper portion of the sealed container in a used state and adapted to discharge the gas therein, a float valve moving in accordance with a buoyancy so as to open or close the discharge passage, a float chamber in which the float valve is accommodated and having a size enabling the float valve to be moved therein and an urging means such as spring for urging the float valve in a valve closing direction. The float valve is provided with a cylindrical member having an upper end closed and a lower end opened to provide an inner cylindrical space formed as an air reservoir and at least one communication port opened to a side wall section of the cylindrical member and adapted to establish communication between an inside and an outside of the air reservoir. The float chamber is provided with at least one opened window section formed to a side wall section thereof at a position corresponding to the communication port of the float chamber so that a gas in the sealed container finely pass through the opened window section.
REFERENCES:
patent: 5518018 (1996-05-01), Roetker
patent: 5566705 (1996-10-01), Harris
patent: 5762090 (1998-06-01), Halamish et al.
Michalsky Gerald A.
NOK Corporation
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