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:
Mar. 26, 2013
Filed:
Mar. 08, 2010
Takuji Matsuki, Tokyo, JP;
Masahide Shimada, Tokyo, JP;
Takuji Matsuki, Tokyo, JP;
Masahide Shimada, Tokyo, JP;
Eagle Industry Co., Ltd., Tokyo, JP;
Abstract
A method of producing a diaphragm damperhaving a high pressure chambercomprised of two diaphragmswith flangeswelded together and charged inside with a high pressure gas. The diaphragmsare made of magnetically attractable thin metal sheets. A pair of jigsprovided to face each other inside the pressure vesselhold the diaphragmsby magnetic force. The pressure vesselis sealed and evacuated, then the pressure vesselis charged and pressurized by a mixed gas including helium. After this, the pair of jigsare made to approach each other to make the flangesof the pair of diaphragmscome into close contact. Inside the pressure vessel, the jigsare simultaneously rotated to rotate the pair of diaphragmsand a laser beam is fired at the flangesof the diaphragmsto weld the flangesover their entire circumferences.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile