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. 25, 1990
Filed:
Jun. 20, 1989
Applicant:
Inventors:
Takashi Sakuma, Ako, JP;
Katsuji Sokai, Ako, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ; H05K / ;
U.S. Cl.
CPC ...
174 / ; 174 18 ;
Abstract
An electrical apparatus with an in-tank shield has a tank which houses an electrical device such as a transformer. A plurality of bushings extend into the tank. Inner shields having good electrical conductivity surround the inner portions of the bushings and are connected to the outer portions of the bushings. A shorting plate having a good electrical conductivity connects the inner shields to each other.
Sakuma, Takashi. (1990). Electrical apparatus with an in-tank electromagnetic shield (U.S. Patent No. 4980515). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4980515
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile