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:
Nov. 09, 1982
Filed:
Mar. 09, 1982
Applicant:
Inventor:
Setsuyuki Matsuda, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; H01B / ;
U.S. Cl.
CPC ...
174 / ; 174 / ;
Abstract
An improved electrical bushing uses a refrigerant to provide cooling of both the bushing and the electrical apparatus to which the bushing is connected. The refrigerant vaporizes inside the hollow conductor of the bushing at the hot contact end, and flows to a heat dissipating device connected to the terminal end of the conductor. A liquid collecting plate collects the refrigerant which has liquefied in the heat dissipating device, and a slender tube inside the conductor transports the liquid refrigerant back to the contact end without the refrigerant contacting the intermediate portion of the conductor.