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. 28, 1980
Filed:
Sep. 15, 1978
Applicant:
Inventors:
David G Bykhovsky, Leningrad, SU;
Vyacheslav G Sobolev, Leningrad, SU;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01T / ; H01J / ;
U.S. Cl.
CPC ...
29420 ; 29 2517 ; 21914521 ; 21914621 ; 3133 / ;
Abstract
A method of producing a nonconsumable electrode comprising forming a blind hole in the working end face of a high-melting core of the electrode, partially filling the blind hole with doping agents and then filling the remaining portion of the hole with a mixture of the doping agents and high-melting core material. The mixture is then heated from the surface of the electrode until a fused surface layer is formed and an enclosed space with doping agents is provided in the electrode.