Fluid handling – Systems – Multi-way valve unit
Patent
1999-06-24
2000-09-19
Fox, John
Fluid handling
Systems
Multi-way valve unit
137239, F16K 1102
Patent
active
061197262
ABSTRACT:
An apparatus and method for effecting transfer of fluid from any one of a plurality of fluid sources to single fluid outlet. The apparatus comprises a valve head having (i) a bore longitudinally extending therethrough, (ii) a plurality of radially extending fluid channels, each channel having an inlet in fluid communication with a corresponding fluid source and an outlet in communication with the bore, and (iii) a valve head fluid outlet in communication with the bore, a valve stem movably disposed within the bore of the valve head, the valve stem having an axially extending fluid channel that has a fluid outlet in communication with the valve head fluid outlet and a fluid inlet, and a valve control system for effecting rotation and axial displacement of the valve stem so as to effect or terminate fluid communication between the valve stem fluid inlet and a fluid outlet of any one of the radially extending fluid channels. The valve control system is configured to effect rotation of the valve stem from a current position directly to any other position without stopping at intervening positions. In a preferred embodiment, the valve head further includes a longitudinally extending channel that has an inlet coupled to the bore and an outlet coupled to a vacuum source to effect removal of fluid residue from the bore.
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Photocopy of p. 34 of Applicant's Product Catalog showing "Perfusion Manifolds". These Perfusion Manifolds were in existence and marketed before Jun. 24, 1999.
Cox Nigel
Keeler John
Fox John
Nuzzo Raymond A.
Warner Instrument Corporation
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