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:
Nov. 09, 1999
Filed:
Dec. 18, 1997
Yoshihiro Fukano, Ibaraki-ken, JP;
Tetsuro Maruyama, Ibaraki-ken, JP;
SMC Kabushiki Kaisha, Tokyo, JP;
Abstract
A suck back valve comprises a valve body including a fluid passage having a first port formed at one end and a second port formed at the other end, and an air supply port for introducing a pressurized fluid; a displacement mechanism provided displaceably at the inside of the valve body, for making displacement in accordance with an action of the pressurized fluid introduced from the air port; a first diaphragm coupled to the displacement mechanism, for making displacement integrally with the displacement mechanism; and a seat section provided to face to the fluid passage, for seating the first diaphragm or making separation from the first diaphragm.