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. 10, 2018
Filed:
Mar. 28, 2014
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A flow rate control valve capable of eliminating an extra operation of a diaphragm spacer after a valve has become a closed state and shortening a response time is provided. It has an annular valve seat, a diaphragmincluding a thin plate-shaped elastic body an outer peripheral part of which has been fixed, and a diaphragm spacerlocated on the opposite side of the valve seatwith the diaphragminterposed therebetween, and the annular valve seat, the diaphragmand the diaphragm spacerare coaxially disposed. And, it is structured that the annular valve seathas, on its top, an inclined surfaceinclined to the inner peripheral side, and the diaphragmis displaced in a direction of the valve seatand the inclined surfaceon the top of the valve seatand the diaphragmabut against with no gap by pressing force of the diaphragm spacer