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:
Apr. 27, 1999
Filed:
Jun. 17, 1997
Applicant:
Inventors:
Tahir Cader, Woodinville, WA (US);
Samuel Bernstein, Bellevue, WA (US);
Clayton Crowe, Pullman, WA (US);
Assignee:
Electric Power Research Institute, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
336 60 ; 336846 ;
Abstract
Convective cooling of a distribution transformer is enhanced by use of magnetic fluid which has a magnetically driven flow pattern in the form of a plurality of vertically stacked magnetic circulation cells with convective heat transfer being enhanced by modifying the configuration of a proximate transformer wall to facilitate the transfer of heat from the magnetic fluid to the wall and then to the ambient air.