Control valve

Details Control valve Control valve

2006-09-11

2009-06-09

Fox, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C251S212000

Reexamination Certificate

active

07543604

ABSTRACT:
A gas valve may include a valve body defining an upper valve seat region, and in some cases a lower valve seat region. A main valve that includes an upper main plate, and in some cases a lower main plate, may be disposed within the valve body. A control valve that includes an upper control plate, and in some cases, a lower control plate may be coaxially aligned with the main valve. The main valve may provide shut-off functionality while the control valve may provide flow control.

REFERENCES:
patent: 1033204 (1912-07-01), Skinner
patent: 1165315 (1915-12-01), Cameron
patent: 1206532 (1916-11-01), Gray
patent: 4114652 (1978-09-01), Oberle
patent: 4481776 (1984-11-01), Araki et al.
patent: 6655409 (2003-12-01), Steenburgh et al.
patent: 7000635 (2006-02-01), Erbe et al.

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