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:
Sep. 15, 1992
Filed:
Dec. 06, 1989
Joachim A La Rosa, Winter Springs, FL (US);
Joseph W Ross, Huntsville, AL (US);
Frank J Heymann, Winter Springs, FL (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A removably securable guide ring (33) for a valve plug (30) in a control valve. The removably securable guide ring (33) also serves as a retainer for a pressure seal ring. The guide ring (33) includes the surface (40) which, upon the guide ring (33) being secured with a valve plug (30), forms a seal ring groove with a stepped portion (34) of the valve plug (30). A seal ring may be installed by removing the guide ring (33) from the valve plug (30), placing the seal ring within the stepped portion (34) of the valve plug (30), and by securing the guide ring (33) with the valve plug (30). As a result, the seal ring is disposed within a seal ring groove formed by a stepped indentation (34) of the valve plug (30) and a surface (40) of the guide ring (33). The guide ring (33) also includes a surface (38) which faces and may abut the inside surface of a valve bonnet (12) during operation. This valve bonnet facing surface (38) of the guide ring (33) operates to guide the valve plug (30) within the valve bonnet (12) during operation of the valve.