The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2008
Filed:
Jun. 24, 2004
Michael Trumbower, Cromwell, IN (US);
Jeffrey M. Grau, Fort Wayne, IN (US);
Nazih M. Khatib, Ann Arbor, MI (US);
Michael P. Wells, Bowling Green, OH (US);
Michael Trumbower, Cromwell, IN (US);
Jeffrey M. Grau, Fort Wayne, IN (US);
Nazih M. Khatib, Ann Arbor, MI (US);
Michael P. Wells, Bowling Green, OH (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
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.