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:
Jan. 14, 2003
Filed:
Apr. 12, 2001
Kabushiki Kaisha Fujikin, Osaka, JP;
Abstract
A fluid controller ( ), having a valve body ( ) having flow paths used as inlet and outlet for a bonnet ( ), and an operating mechanism ( ) moving the diaphragm in vertical direction, wherein the flow paths of the valve body communicates with each other through a protrusion-free communication path ( ), the diaphragm is fitted closely to the communication path when lowered so as to close the flow path and, when raised, the center part of the diaphragm is recessed and its part near the outer periphery part is protruded, and also a curved surface ( ) to which the outer upper surface ( ) of the protruded part is closely fitted is formed on the bonnet at the inner lower surface of a diaphragm holding part ( ).