US Patent 7780172 Rotation shaft seal
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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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Patent Inventor Names
Hironori Oida0
Tetsuya Ashida0
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US Patent 07780172 Rotation shaft seal US Patent 7780172 Rotation shaft seal
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Patent Number
077801720
Patent Number
77801720
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Official Website
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Patent Jurisdiction
Patent Number
077801720
Date of Patent
August 24, 2010
0Patent Application Number
117972640
Date Filed
May 2, 2007
0Official Website
Patent Primary Examiner
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US Patent 07780172 Rotation shaft seal
Infobox
Is a
Patent jurisdiction
Patent number
07780172
Date of patent
August 24, 2010
Patent application number
11797264
Date Filed
May 2, 2007
Patent primary examiner
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