Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tetsuya Ashida0
Hironori Oida0
Date of Patent
May 25, 2010
0Patent Application Number
117234610
Date Filed
March 20, 2007
0Patent Primary Examiner
Patent abstract
A rotation shaft seal to prevent inner leak from increasing along high-pressurization of sealed gas. A staged portion is formed on an outer case, and an end face on an inner side of the staged portion is covered with rubber to form a ring rubber portion of which end face is covered. A rubber end face of the rubber portion and a face on a peripheral edge of a seal element are pressed to each other.
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