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:
Apr. 04, 2006
Filed:
Mar. 04, 2004
Ronald L. Grace, Fallbrook, CA (US);
Ronald L. Grace, Fallbrook, CA (US);
Flowserve Management Company, Irving, TX (US);
Abstract
A secondary seal gasket is formed of a graphite material for higher temperature applications. The gasket is formed by multiple wraps of a graphite ribbon and then is shaped in a mold to provide a U-shaped cross-sectional configuration having a self-energizing spring disposed therein. The gasket is formed from an L-shaped ribbon wrap having additional ribbon overwraps thereon to define a gasket ring which is then molded in a die press to form the U-shape. The L-shaped ribbon wrap thereby extends axially and then radially outwardly to define an end wall of the gasket to impede migration of fluid between the axial ribbon wraps.