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. 07, 1999
Filed:
Jul. 14, 1998
Applicant:
Inventor:
Lionel A Young, Murrieta, CA (US);
Assignee:
Flowserve Management Company, Irving, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277400 ; 277399 ;
Abstract
An improved annular face seal ring mountable in opposed alignment to another face seal ring to form a sliding interface in a mechanical seal assembly. It includes a sealing ring face on an axially facing surface of the ring. At least two circumferential disposed preformed waves are on the sealing ring face having high areas and low areas on the sealing ring face. The waves of the sealing ring face have a lapped surface and/or a surface roughness of about 4 .mu. inch R.sub.a or less.