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:
Sep. 14, 2004
Filed:
Apr. 02, 2002
Applicant:
Inventors:
Michael Fefer, Whitby, CA;
Tomoki Ruo, Oakville, CA;
Assignee:
Petro-Canada, Mississauga, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 3/24 ;
U.S. Cl.
CPC ...
H04B 3/24 ;
Abstract
A dielectric fluid comprises an isoparaffinic base oil and hydrogen donor compound. The base oil may be a hydroisomerized isoparaffinic oil, and the hydrogen donor may be a substituted, or partially saturated aromatic compound. The resulting dielectric fluid exhibits negative hydrogen gassing properties along with good oxidative stability and low temperature performance.