Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shinya Nakaoka0
Takaaki Yasudomi0
Naohiro Jotaki0
Nobuyuki Eguchi0
Date of Patent
March 11, 2008
0Patent Application Number
105223850
Date Filed
July 25, 2003
0Patent Primary Examiner
Patent abstract
A seal ring which maintains a stable sealing performance over a long term is provided. In a first seal portion, linear contact portions which come into linear contact with the sidewall surface of an annular groove on the unsealed fluid side are continuously extended over the whole circumference of the seal ring from one side of a separation portion to the other side thereof, and the linear contact part provided at the convex part of the separation portion, and the linear contact part provided at the concave part of the separation portion are located at a distance in the radial direction of the seal ring.
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