Fluid handling – Systems – With flow control means for branched passages
Reexamination Certificate
2008-05-13
2008-05-13
Kirshnamurthy, Ramesh (Department: 3753)
Fluid handling
Systems
With flow control means for branched passages
C251S214000, C251S340000, C251S149400, C062S292000
Reexamination Certificate
active
10875576
ABSTRACT:
A service valve for a refrigerant system comprising a valve body and a system port. The valve body has at least one fluid passage integrated therein including a longitudinal bore. An orifice is located at one end of the bore. An annular protrusion axially extends from the valve body and is symmetrical about the orifice. A valve seat generally surrounds the orifice. The system port includes a valve stem having a first end, a second end, and a bore integrated within. The stem is axially movable within the annular protrusion between at least a first position in which the orifice is closed when the valve stem first end sealingly abuts the valve seat and a second position in which the orifice is open when the valve stem first end is offset from the valve seat. The valve stem is restricted from moving further away from the valve body by the annular protrusion.
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Grau Jeffrey M.
Khatib Nazih M.
Trumbower Michael
Wells Michael P.
Kirshnamurthy Ramesh
Parker-Hannifin Corporation
Pophal Joseph J.
Rost Andrew J.
Whitman Daniel J.
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