Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tetsuya Ashida0
Hironori Oida0
Date of Patent
August 24, 2010
0Patent Application Number
117972640
Date Filed
May 2, 2007
0Patent Primary Examiner
Patent abstract
In a rotation shaft seal provided with a rubber lip portion, disposed between a housing and a rotation shaft and sliding on the rotation shaft, and a supporting member receiving the lip portion from a low-pressure side, the cross-sectional configuration of the lip portion in free state is a trapezoid diminishing to the end having the maximum thickness portion within an area received by the supporting member.
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