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:
Dec. 31, 1985
Filed:
Dec. 18, 1984
Motoo Yamaguchi, Hitachi, JP;
Isamu Sone, Hitachi, JP;
Kunio Hirasawa, Hitachi, JP;
Yoshio Yoshioka, Hitachi, JP;
Akio Nishikawa, Hitachi, JP;
Hiroshi Suzuki, Hitachi, JP;
Mikio Sato, Hitachi, JP;
Masao Hosokawa, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A SF.sub.6 gas insulating electric apparatus usable as a circuit breaker, etc., containing a SF.sub.6 gas insulator and a resin insulator, both of which insulators are present in an atmosphere to be exposed to arcs, characterized by making at least the surface portion to be exposed to arcs of the resin insulator from a polymer containing nitrogen atoms or a polyolefin resin, and if necessary together with an inorganic filler powder, is excellent in both surface and inner arc resistance and can maintain breaking performance for a long period of time.