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:
Aug. 04, 2015
Filed:
Jun. 04, 2007
Applicants:
Lloyd D. Hanson, Long Beach, CA (US);
William B. Jones, Jr., Hacienda Heights, CA (US);
Inventors:
Lloyd D. Hanson, Long Beach, CA (US);
William B. Jones, Jr., Hacienda Heights, CA (US);
Assignee:
Flowserve Management Company, Irving, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 27/08 (2006.01); F16L 23/18 (2006.01); C10B 33/00 (2006.01); F16J 15/00 (2006.01);
U.S. Cl.
CPC ...
F16L 27/0816 (2013.01); C10B 33/00 (2013.01); F16J 15/004 (2013.01); F16J 15/008 (2013.01); Y10S 277/914 (2013.01);
Abstract
A rotary joint for a decoking tool. The rotary joint includes a seal assembly that has one or more primary seals and one or more secondary seals. The secondary seals become operative upon the presence of a leak in the primary seals such that the rotary joint can continue to be used until a scheduled maintenance outage. A selective vent is used to route leaking fluid so that one or the other of the primary and secondary seals can be activated.