Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2007-10-09
2010-12-14
Kornakov, Michael (Department: 1714)
Fluid handling
Systems
Multi-way valve unit
C134S05600D, C134S0570DL, C134S0580DL, C134S060000, C134S104200
Reexamination Certificate
active
07849878
ABSTRACT:
A purge drain valve including a spool spliced in a fluid line includes a control valve and an actuator coupled to the control valve for regulating fluid flow. During a washing operation, fluid flows between a supply end and a delivery end of the spool, and during a purging operation, the control valve diverts fluid entering the supply end from the delivery end towards a drain leg. A washing system includes a fluid supply coupled to an input of a wash delivery system and a delivery line coupled to an output of the wash delivery system. The purge drain may be spliced into the delivery line to permit fluid to reach a wash apparatus during a washing operation and to prevent fluid from reaching the wash apparatus during a purging operation. A rinse cycle sensor apparatus may be employed to indicate to an operator if a washing operation is complete based upon a conductivity of fluid exiting from a device being washed.
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Kohler Rodney W.
Wagner Thomas
Campbell Natasha
DLA Piper (LLP) US
Gas Turbine Efficiency Sweden AB
Kornakov Michael
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