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. 03, 1984
Filed:
Dec. 30, 1981
Takashi Yamanaka, Amagasaki, JP;
Kouichi Inagaki, Amagasaki, JP;
Eizo Naya, Amagasaki, JP;
Michinosuke Demizu, Amagasaki, JP;
Mitsuhiro Okumura, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A contactor for a vacuum type circuit interrupter having a pair of detachable electrodes in a vacuum chamber comprises an electrode obtained by melting or sintering a composition of an electric conductive metal of copper or silver as a main component and at least one metal oxide having a melting point lower than that of said conductive metal of bismuth oxide, thallium oxide, indium oxide, antimony oxide or tellurium oxide as an additive, in vacuum or a reduced atmosphere or a nonoxidative atmosphere.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile