Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yasuo Manabe0
Takanori Yamauchi0
Takeo Nishimoto0
Date of Patent
February 23, 2010
Patent Application Number
10944795
Date Filed
September 21, 2004
Patent Primary Examiner
Patent abstract
In a self-tightening type sealing device according to the present invention, not only a sealing member is tightened by an internal pressure, but also a tightening force imparting device which tightens the sealing member separately from the internal pressure is provided so as to be remotely operable by a controller. This construction remedies drawbacks involved in manual operation of the tightening force imparting device.
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