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. 28, 1978
Filed:
Feb. 03, 1977
Applicant:
Inventors:
George A Shirn, Williamstown, MA (US);
Sidney D Ross, Williamstown, MA (US);
Assignee:
Sprague Electric Company, North Adams, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ; B05D / ;
U.S. Cl.
CPC ...
427 80 ; 427 79 ; 427226 ; 427259 ; 427261 ; 427346 ; 4274 / ; 427435 ;
Abstract
Formed porous tantalum pellets each having an extending anode wire are lowered part way into a molten compound such as napthalene. The napthalene wicks its way into substantially all of the pellet pores. Upon removal from the bath the napthalene freezes within each pellet. A liquid insulating material is applied to the anode wire while being masked from entering the porous pellet by the napthalene. The napthalene is subsequently vaporized from the pores and thereafter manganous nitrate is introduced into the pellet and is pyrolyzed to form MnO.sub.2.