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:
May. 19, 1987
Filed:
Apr. 01, 1985
Applicant:
Inventors:
Toshio Ishikawa, Hitachi, JP;
Fumihiro Endo, Hitachi, JP;
Tokio Yamagiwa, Hitachi, JP;
Yuzuru Kamata, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; H02G / ;
U.S. Cl.
CPC ...
174 / ; 174 28 ;
Abstract
A gas insulated electrical apparatus comprises: a metal pipe in which an insulation gas is sealed; a conductor supported inside of the metal pipe by an insulation supporting member; and an insulation layer provided on the inner surface of the metal pipe. Strong dielectric material is mixed in the insulation layer so that its specific inductive capacity becomes ten or more.