Dual recycling/transfer furnace flow management valve for...

Details Dual recycling/transfer furnace flow management valve for... Dual recycling/transfer furnace flow management valve for...

2008-06-03

2009-06-09

Fox, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C222S318000, C222S594000, C266S236000

Reexamination Certificate

active

07543605

ABSTRACT:
A furnace flow control valve for use within a bath of molten metal. The flow control valve includes a vertically-disposed elongated tubular stator, which is configured to receive flow from a molten metal pump. The valve has a rotor which is sealing rotatable within the stator between: a full re-circulation position, where flow from the pump passes un-hindered through the valve; a full transfer position, where flow from the pump is redirected into the vertically disposed stator and out of the valve; and a partial re-circulation/partial transfer position where flow from the pump both passes through the valve and is transferred up and out of valve through the stator.

REFERENCES:
patent: 228799 (1880-06-01), Aldrich
patent: 1448529 (1923-03-01), Fleming
patent: 5016446 (1991-05-01), Fiedler
patent: 5078306 (1992-01-01), Keller et al.
patent: 5083688 (1992-01-01), Luhrsen et al.
patent: 5547014 (1996-08-01), Bruckner et al.
patent: 5637541 (1997-06-01), Kuszyk et al.
patent: 7427190 (2008-09-01), Baumgartner

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