Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2007-10-09
2007-10-09
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S614170
Reexamination Certificate
active
11556690
ABSTRACT:
A method of forming a ball valve element for a rotary ball valve assembly, the method comprising the steps of: (a) inserting an impedance element through an insertion opening of a ball valve element into a bore; (b) forming a fluid opening in the ball valve element which is non-rectilinearly aligned with the insertion opening and which communicates with the bore; and (c) sealing the insertion opening. A ball valve element for a rotary ball valve assembly formed using such a method; and a rotary ball valve assembly comprising a ball valve element formed using such a method are also provided.
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Christenson Cynthia
Jackson Kevin
Mohrfeld James W.
Fox John
Lundeen Daniel N.
Lundeen & Dickinson LLP
Mogas Industries, Inc.
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