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:
Jul. 04, 1995
Filed:
Sep. 14, 1993
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An OFF/OFF valve including a fluid passage formed in the valve body, and having a valve seat, a smaller diameter portion extending from the valve seat on a downstream side of the valve seat, and a larger diameter portion extending from the smaller diameter portion on a downstream side of the smaller diameter portion. A valve element is disposed so as to be movable between a position adjacent the valve seat and a position within the larger diameter portion. The valve element is driven by a valve element driving assembly. When the valve is closed, the valve element moves toward the valve seat. When the valve element moves within the smaller diameter portion, the fluid which has passed through the valve element is drawn back due to the pumping effect of the valve element before the valve element finally reaches the valve seat and the valve is completely closed.