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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 6002085 B1

PDFFull Text
Date of Patent:
Dec. 14, 1999

Filed:

Dec. 08, 1994

Gas insulated switchgear

Applicant:
Inventors:

Tomoaki Utsumi, Hitachi, JP;

Toshio Ishikawa, Hitachi, JP;

Shuzo Iwaasa, Hitachi, JP;

Fumihiro Endo, Hitachi, JP;

Tokio Yamagiwa, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Antonelli, Terry, Stout & Kraus, LLP

Primary Examiner:

David P Bryant

Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
174 28 ; 1741 / ; 361604 ;
Abstract

A gas insulated switchgear has a container which is filled with an insulating gas, a conductor disposed with the container, an insulator for supporting the conductor. An outer periphery of the insulator is made smooth so as to improve a dielectric strength of the device. The insulator is made of an organic substance base and an inorganic material filler added to the base. In order to improve the dielectric strength, the filler is atomised or the insulator is coated.

Find Patent Forward Citations

Utsumi, Tomoaki. (1999). Gas insulated switchgear (U.S. Patent No. 6002085). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6002085

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

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