Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1995-03-24
1997-04-01
Fox, John C.
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
220232, F16K 710
Patent
active
056158599
ABSTRACT:
A valve assembly structure and method for sterilizing multiple environments or containers, such as an isolation barrier and a tank. The valve assembly structure comprises a cylindrical housing with an inner chamber having a first and second opening. The valve assembly further comprises an annular deflatable hollow gasket positioned against the inner chamber for engaging a plug sealing member. The cylindrical housing of the spool may also include a plurality of passages to allow various liquids and gases to be circulated and removed from the inner chamber of the valve assembly. A variety of methods may be employed for adequately sterilizing the valve assembly simultaneously with the multiple sterilized environments or containers. These methods include sterilizing the valve assembly separately through the valve passages in the cylindrical housing of the valve, or sterilizing the valve assembly using the same method or process used to sterilize one or more of the attached containers.
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Costellia Jeffrey L.
Fox John C.
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