Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yoshimi Imamoto0
Hiroshi Anzai0
Takao Kanno0
Date of Patent
September 5, 2006
0Patent Application Number
104777600
Date Filed
May 22, 2002
0Patent Primary Examiner
Patent abstract
A magnetic fluid seal device that increases a permissible value of eccentricity for two members to improve sealability and decreases a variation of quality by injecting a magnetic fluid before assembling of parts, that saves structural members to achieve thinning, and that is easy to produce. An annular magnet 3 is buoyantly supported by the magnetic fluid 4 and 5 retained, and the space between a housing 1 and a shaft 2 is sealed by the annular magnet 3 and magnetic fluid 4 and 5.
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