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:
Nov. 25, 1980
Filed:
Apr. 06, 1978
Applicant:
Inventors:
Balint Escher, Ableiges, FR;
Rene' Romanet, Meulan, FR;
Assignee:
Societe Lignes Telegraphiques et Telephoniques, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
29570 ; 29585 ; 29588 ; 264 22 ; 264 25 ; 264272 ;
Abstract
Powdered plastic encapsulation of solid tantalum capacitors is achieved through coating the capacitors between 150.degree. C. and 250.degree. C. while biasing the capacitors at direct voltage between 0.2 and 1 times the rated voltage. The plastic is cured in about 3 minutes. The capacity temperature derating and the reverse current temperature derating are reduced with respect to capacitors encapsulated unbiased at the same temperature.