The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2009
Filed:
Dec. 01, 2003
Kenji Ichikawa, Kakuda, JP;
Masamitsu Shinbo, Kakuda, JP;
Kouji Sengoku, Shioya-gun, JP;
Narihiro Takagi, Haga-gun, JP;
Katsumi Saito, Shioya-gun, JP;
Kenji Ichikawa, Kakuda, JP;
Masamitsu Shinbo, Kakuda, JP;
Kouji Sengoku, Shioya-gun, JP;
Narihiro Takagi, Haga-gun, JP;
Katsumi Saito, Shioya-gun, JP;
Keihin Corporation, Tokyo, JP;
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.