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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.:

US 4537743 B1

PDFFull Text
Date of Patent:
Aug. 27, 1985

Filed:

Jun. 25, 1984

Electrode composition for vacuum switch

Applicant:
Inventors:

Takashi Yamanaka, Itami, JP;

Yasushi Takeya, Osaka, JP;

Mitsumasa Yorita, Itami, JP;

Toshiaki Horiuchi, Settsu, JP;

Kouichi Inagaki, Itami, JP;

Eizo Naya, Ibaraki, JP;

Michinosuke Demizu, Takarazuka, JP;

Mitsuhiro Okumura, Sakai, JP;

Assignee:

Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

J L Barr

Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 38 ; 419 39 ; 419 46 ; 419 58 ; 29622 ; 29756 ; 29879 ; 252512 ; 252513 ; 252515 ; 200265 ; 200266 ; 264 61 ; 264 65 ; 420469 ; 420470 ; 420474 ;
Abstract

The disclosed electrode composition for a vacuum switch comprises copper, as a principal ingredient, a low melting point metal such as Bi, Pb, In, Li, Sn or any of their alloys, in a content not exceeding 20% by weight, a first additional metal such as Te, Sb, La, Mg or any of their alloys and a refractory metal such as Cr, Fe, Co, Ni, Ti, W or any of their alloys in a content less than 40% by weight.

Find Patent Forward Citations

Yamanaka, Takashi. (1985). Electrode composition for vacuum switch (U.S. Patent No. 4537743). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4537743

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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