Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2007-10-24
2011-10-18
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C251S176000
Reexamination Certificate
active
08037900
ABSTRACT:
A bi-directional adjustable energy dissipating near zero leakage head loss valve comprising a valve body including and actuation shaft housing and a guide shaft mount disposed in opposition along the transverse valve actuation axis; a fixed plate having downstream orifices parallel to the flow axis; a mobile plate having upstream orifices parallel to the flow axis adapted to move along the transverse valve actuation axis: from a fully open position, wherein the upstream and downstream orifices are aligned to allow flow communication to a fully closed position, wherein the orifices are blocked by the mobile plate; a self adjusting taper ring located about the upstream inner perimeter of the valve body, the self adjusting taper ring having an inner surface engagingly biased against and parallel to the upstream side of the mobile plate, and having an outer surface engagingly biased against an upstream pipe gasket flange.
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Fox John
Phillips Lytle LLP
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