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. 01, 2000
Filed:
Sep. 08, 1998
Ikuo Kanzaka, Yawara-mura, JP;
Tsuneo Ishigaki, Yawara-mura, JP;
SMC Corporation, , JP;
Abstract
A smooth vent valve in which an on-off valve and a flow control valve are provided in series and arranged to be capable of being operated by respective actuating mechanisms, thereby accurately performing the on-off operation of the on-off valve and the flow rate control of the flow control valve. The smooth vent valve (11) has an on-off valve (8) and a flow control valve (9), which are coaxially provided between an inlet port (18) and outlet port (19) of a valve body (13 to 15). The on-off valve (8) and the flow control valve (9) are placed in series. An actuating mechanism for the on-off valve (8) and an actuating mechanism for the flow control valve (9) are formed separately from each other. When the on-off valve is in an open position, the flow control valve can be switched between a throttling position and an open position while continuously changing the flow rate.