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:
May. 21, 2002
Filed:
Dec. 20, 2000
SMC Corporation, Tokyo, JP;
Abstract
There is provided a two-port valve in which a deviation of a degree of parallelization of a valve member and a valve seat can be corrected automatically, which has excellent airtightness, and in which assembly and replacement of the valve member are easy. For this purpose, a shoulder portion and a small-diameter portion are formed in a vicinity of an end portion of a shaft , a groove portion into which a snap ring is mounted is formed in a vicinity of a tip end portion of the small-diameter portion, a through hole into which the small-diameter portion is inserted and an annular stepped portion formed by increasing a diameter of a portion of the through hole are provided to the valve member , a sealant for providing sealing between the shaft and the valve member is mounted to the stepped portion, a plate is provided between the valve member and the snap ring , and the valve member is locked while pressing the sealant mounted to the stepped portion and while being pushed against the shoulder portion by the snap ring mounted into the groove portion and the plate