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. 21, 1992
Filed:
Sep. 12, 1990
Applicant:
Inventors:
Gilbert Krausener, Metz, FR;
Jean-Francois Martin, Nancy, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ;
U.S. Cl.
CPC ...
164451 ; 164-41 ; 164150 ; 266 94 ; 7329 / ;
Abstract
According to this process: the position in respect of height of the 'molten metal (2)/liquid slag (3)' interface (M) is continuously determined. Further the position of an isotherm (IS) located at the 'liquid slag (3)/powder layer (4)' interface is continuously determined by automatically controlling the position of a thermocouple (8) on this isotherm and by measuring the displacements of this thermocouple. By comparing the position in respect of height of the molten metal/liquid slag interface (M) with the position in respect of height of the isotherm (IS), the thickness and thus the variations in thickness of the liquid slag are continuously deduced.