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. 09, 1989
Filed:
Oct. 27, 1987
Applicant:
Inventors:
Tadahiro Ohmi, Sendai, JP;
Yohichi Kanno, Sendai, JP;
Osamu Uchisawa, Sendai, JP;
Kazuhiko Sato, Izumi, JP;
Assignee:
Motoyama Eng. Works, Lts, Sendai, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251118 ; 251127 ; 251 635 ; 251331 ; 251368 ;
Abstract
A metal diaphragm valve in which the interior of a valve casing is divided, by means of a metal diaphragm, thereby defining a valve chamber. Inlet hole and outlet hole are connected to the valve chamber. A valve seat is provided between the inlet and outlet holes, inside the valve chamber. A valve disk adapted to rest on the valve seat, is formed integrally with the diaphragm. The valve disk is driven by a drive unit disposed outside of the valve chamber, to open or close the valve.