Fluid handling – Reversing valves - regenerative furnace type – Rotary reversing valve
Reexamination Certificate
2005-05-17
2005-05-17
Fox, John (Department: 3753)
Fluid handling
Reversing valves - regenerative furnace type
Rotary reversing valve
C251S250000
Reexamination Certificate
active
06892750
ABSTRACT:
Switching valve and a regenerative thermal oxidizer including the switching valve. The valve of the present invention exhibits excellent sealing characteristics and minimizes wear. The valve has a seal plate that defines two chambers, each chamber being a flow port that leads to one of two regenerative beds of the oxidizer. The valve also includes a switching flow distributor which provides alternate channeling of the inlet or outlet process gas to each half of the seal plate. The valve operates between two modes: a stationary mode and a valve movement mode. In the stationary mode, a tight gas seal is used to minimize or prevent process gas leakage. The gas seal also seals during valve movement.
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Bittman Mitchell D.
Fox John
Lemack Kevin S.
Megtec Systems Inc.
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