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:
Oct. 06, 1987
Filed:
May. 01, 1985
Applicant:
Inventors:
Yoshihiro Tsuchimoto, Musashino, JP;
Kazuhiko Takesa, Yokosuka, JP;
Assignees:
Asahi Glass Company Ltd., Tokyo, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137340 ; 137334 ; 137315 ; 137375 ; 251305 ;
Abstract
A butterfly valve for controlling high-temperature fluid including a ceramic valve is disclosed. The butterfly valve exhibits excellent high-temperature sealing and heat insulating characteristics and strength sufficient to rigid support the valve disc therein. The valve comprises a valve stem and a valve disc integrally formed of ceramics and is housed in a casing through a valve guide opening and the valve guide opening is closed with a plug through which the valve stem is inserted.