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:
Jul. 29, 1986
Filed:
Jan. 27, 1984
Kenneth C Saliger, DeSoto, TX (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
A seal arrangement for a fluid swivel joint such as is commonly used on offshore loading terminals for tankers. The sealed fluid joint includes first and second adjacent joint rings which are rotatable relative to each other about a common central longitudinal axis. The joint rings have a small annular, ring-shaped clearance gap therebetween to allow relative rotational movement, and one of the rings includes an annular seal housing groove facing the clearance gap. An annular seal is positioned in the seal housing groove, and its componets include a pliant annular, sealing member and an adjacent free-floating anti-extrusion ring to prevent the pliant sealing member from being deformed into the clearance gap by a relatively high fluid pressure differential existing across the seal. An oil injection system circulates a flow of oil between a sealing face on one of the joint rings and the contacting surfaces of the sealing member and anti-extrusion so as to remove generated heat and any seal wear debris from the seal arrangement.