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, 1986
Filed:
Aug. 13, 1984
Applicant:
Inventor:
Mitsumasa Yorita, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; F16L / ; F16L / ;
U.S. Cl.
CPC ...
2001 / ; 200 / ; 138121 ; 138122 ; 285226 ;
Abstract
A bellows device having a plurality of recesses and ridges in the direction of expansion and contraction is used for a movable part of a vacuum switch tube. The thickness of an middle part in the direction of expansion and contraction is 1.2 times or more than the thickness of a part placed adjacent the middle part. The middle part has three or more ridges.
Yorita, Mitsumasa. (1986). Bellows device (U.S. Patent No. 4585913). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4585913
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile