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:
Jan. 21, 2003
Filed:
Apr. 05, 2001
Applicant:
Inventor:
Mitsuru Mamyo, Komaki, JP;
Assignee:
CDK Corporation, Komaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 7/17 ;
U.S. Cl.
CPC ...
F16K 7/17 ;
Abstract
A high-temperature gas control valve for controlling a flow of a high-temperature gas, includes a valve seat made of metal, a diaphragm made of metal, which is brought into contact with or separated from the valve seat by operation of an actuator, thereby opening and closing the valve. At least one of the diaphragm and the valve seat is coated with an amorphous-carbon film.