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:
Apr. 29, 1997
Filed:
Oct. 11, 1995
Applicant:
Inventors:
Assignee:
Fujikin Incorporated, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
2513352 ; 2513351 ;
Abstract
An inner peripheral portion of a metallic diaphragm (11) having a mounting hole (11a) at a central portion is held between a metallic welding fitting (8, 8') and a metallic holding member (6, 17), each respectively having an annular flat portion (8a, 6a, 17a) to contact an inner peripheral portion. The inner peripheral portion of the metallic diaphragm and the portions of the metallic welding fitting and the metallic holding member contacting the inner peripheral portion of the foregoing metallic diaphragm are welded at W', W' along entire peripheries thereof in order to secure these three components together as one body.