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:
Jun. 27, 2000
Filed:
Sep. 21, 1999
Applicant:
Inventors:
Yoshihiko Onishi, Tokyo, JP;
Shigenobu Tochiyama, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 30 ; 138 26 ; 220721 ;
Abstract
To improve the rigidity of diaphragms, a plurality of diaphragms of the same thickness and size are placed one upon another, the total thickness of the diaphragms is a value obtained by multiplying the thickness of the diaphragm by the number of diaphragms, and the peripheral portions of the diaphragms are sealed and supported by a high-pressure container.