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. 02, 2024
Filed:
Jul. 03, 2020
Horiba Stec, Co., Ltd., Kyoto, JP;
Andrew Price, Kyoto, JP;
HORIBA STEC, Co., Ltd., Kyoto, JP;
Abstract
To provide a flow rate control valve that can improve responsiveness of flow rate control of a pressure differential type of a flow rate control device. The flow rate control valve is so configured to comprise a pair of valve members each of which has a seat surface being in contact with each other, to provide an internal flow channel that opens toward the seat surfaces and that passes through the inside of at least one of the valve members, and to control a flow rate of a fluid flowing out through the internal flow channel to the outside by adjusting a separation distance between the seat surfaces. And a restricted flow channel is formed in the internal flow channel so that a differential pressure is generated between an upstream side and a downstream side of the restricted flow channel.