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. 10, 2004
Filed:
Sep. 17, 2002
Akira Enzaki, Tsukuba-gun, JP;
Toyonobu Sakurai, Tsukuba-gun, JP;
SMC Corporation, Tokyo, JP;
Abstract
To provide a maintenance-easy two-port valve capable of easily assembling and disassembling a valve body and a bonnet, and preventing the bonnet from being detached from the valve body by an erroneous operation. In a two-port valve having attachment means for detachably attaching a bonnet to a valve body the attachment means includes a plurality of shafts fixedly attached to a valve body and each having an engagement groove on an upper end portion, a handle a plate rotatably provided between an upper end portion of the bonnet and the handle and having an engagement groove engaged to or disengaged from the retaining groove by rotating the plate and an engagement pin engaged with an engagement hole provided in the plate at a push-down position of the handle transmitting the rotation of the handle to the plate and fixedly attached to the handle