Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenji Ichikawa0
Narihiro Takagi0
Masamitsu Shinbo0
Katsumi Saito0
Kouji Sengoku0
Date of Patent
September 1, 2009
0Patent Application Number
107258620
Date Filed
December 1, 2003
0Patent Primary Examiner
Patent abstract
When a stepping motor is de-energized, a valve shaft is turned in a direction to open a valve body under the resilient forces stored in a fully opening spring through a receptacle and a driven plate. At this time, a drive plate is turned in unison with the driven plate. When the valve body reaches a fully open position, a positioning finger on the drive plate abuts against a stopper pin, thus stopping the turning movement of the drive plate.
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