John A Estocin from Elizabeth, PA

Measuring The Thickness Of Hot Slag In Steelmaking
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US Patent:

61306371, Oct 10, 2000
Filed:

Aug 18, 1998
Appl. No.:

9/135617
Inventors:

Gregory A. Meszaros - Pittsburgh PA
Roger Marquart - Valpraiso IN
David J. Walker - Mississauga, CA
John G. Estocin - Turtle Creek PA
Frank L. Kemeny - Grand Island NY
Assignee:

USX Corporation - Pittsburgh PA
International Classification:

G01S 1310
US Classification:

342124
Abstract:

Radar is used to measure not only the level of slag on molten steel but also its thickness; the measurement is used to calculate the volume of slag, and, in turn the amount of additives for slag treatment.

Measuring The Thickness Of Materials
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US Patent:

61666815, Dec 26, 2000
Filed:

Jul 15, 1999
Appl. No.:

9/354216
Inventors:

Gregory A. Meszaros - Pittsburgh PA
Roger Marquardt - Valpraiso IN
David I. Walker - Mississauga, CA
John G. Estocin - Turtle Creek PA
Frank L. Kemeny - Grand Island NY
Assignee:

USX Corporation
International Classification:

G01S 1388
G01F 23284
US Classification:

342124
Abstract:

Radar is used to measure not only the level of slag on molten steel but also its thickness; the measurement is used to calculate the volume of slag, and, in turn the amount of additives for slag treatment. Time-of-flight data are used to identify peaks representing the distances of the surfaces of the slag and the surface of the underlying steel. The concept is applicable to other materials of differing composition, and particularly where the underlying material is relatively more conductive than the overlying material.