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:
Aug. 09, 2005
Filed:
Jul. 08, 2002
Katsuo Hashimoto, Nagano-ken, JP;
Shigeru Ozawa, Nagano-ken, JP;
Katsuo Hashimoto, Nagano-ken, JP;
Shigeru Ozawa, Nagano-ken, JP;
Sankyo Seiki Mfg. Co., Ltd., Nagano, JP;
Abstract
A valve driving device includes a plurality of valve bodies that are simultaneously driven. Driven gears are disposed symmetrically with respect to an axis of the a common gear. Rubber valve bodies which are separate from the driven gears are disposed on the lower surfaces of the driven gears. The valve bodies are slidably aligned with a valve seat which is formed by smoothly denting a valve seat plate. The driven gears are brought into contact with the valve seat under pressure by one leaf spring member to open or close communication holes (valve openings) thereby interrupting or opening a flow-path from an inflow hole.