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. 01, 1986
Filed:
Oct. 19, 1984
Applicant:
Inventors:
Manuel Finkelstein, North Adams, MA (US);
Sidney D Ross, Williamstown, MA (US);
Assignee:
Sprague Electric Company, North Adams, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01G / ;
U.S. Cl.
CPC ...
361433 ; 252 622 ;
Abstract
In an aluminum foil electrolytic capacitor, the anode foil bears both a layer of hydrous aluminum oxide and a layer of barrier dielectric oxide and is in contact with an electrolyte containing as additives up to 5 wt % depolarizer and sufficient soluble phosphate salt to restore the desired anodization voltage.