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:
Sep. 12, 1978
Filed:
May. 17, 1977
Applicant:
Inventor:
Igor Melnick, Grenoble, FR;
Assignee:
Commissariat a l'Energie Atomique, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
13 22 ; 219275 ; 219424 ;
Abstract
Evaporation source for vacuum deposition, comprising a refractory crucible provided in its outer surface with conducting members traversed by an electric current and able to raise the crucible temperature by Joule effect, in which the said outer surface is coated, prior to fitting the conducting members, with a thin intermediate coating layer which does not react with the crucible but which is in intimate contact with the latter. A particular application is the vacuum heating to elevated temperature of crucibles.