US Patent 7722052 Rotation shaft seal
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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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Patent Inventor Names
Hironori Oida0
Tetsuya Ashida0
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Official Website
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US Patent 07722052 Rotation shaft seal US Patent 7722052 Rotation shaft seal
Infobox
Patent Number
077220520
Patent Number
77220520
Edits on 27 Mar, 2023
Golden AI
Infobox
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Patent Jurisdiction
Patent Number
077220520
Date of Patent
May 25, 2010
0Patent Application Number
117234610
Date Filed
March 20, 2007
0Official Website
Patent Primary Examiner
Edits on 18 Jun, 2022
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US Patent 07722052 Rotation shaft seal
Infobox
Is a
Patent jurisdiction
Patent number
07722052
Date of patent
May 25, 2010
Patent application number
11723461
Date Filed
March 20, 2007
Patent primary examiner
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