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:
Oct. 17, 1978
Filed:
Jun. 27, 1977
Applicant:
Inventors:
Sidney D Ross, Williamstown, MA (US);
Raynor Linzey, Adams, MA (US);
Assignee:
Sprague Electric Company, North Adams, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
361319 ; 252 64 ; 361315 ;
Abstract
An ester dielectric fluid for an AC capacitor with improved corona properties contains a minor amount of tert-butylanthraquinone. The ester may be 2-ethylhexylphthalate or diisononylphthalate, and an epoxide stabilizer is present.