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:
Jun. 08, 1976
Filed:
Mar. 08, 1974
Applicant:
Inventor:
Hiroshi Kubo, Osaka, JA;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JA;
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
174 / ; 165105 ;
Abstract
An evaporative cooling power cable is provided with a circulating duct to act as a refrigerant passage. An insulating and liquescent cooling agent is sealed in the circulating duct to be liquified at least during part of its passage through the duct so that the liquid surface of the refrigerant is held higher than the inlet of the refrigerant to the cable. Thus, the refrigerant evaporated by the absorption of heat generated in the cable will naturally circulate the refrigerant to effectuate the cooling of the power cable.