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:
Jan. 30, 2001
Filed:
Feb. 03, 2000
Victor B. Demidovitch, Pittsburgh, PA (US);
William Goodlin, McMurray, PA (US);
Bricmont, Inc., Cannonsburg, PA (US);
Abstract
A furnace for heating ferrous metal workpiece is made up of a plurality of pairs of furnace sections with each pair of furnace section having a longitudinal flux inductors with controls for rapidly adjusting the heating rate according to a desired workpiece discharged temperature from the second of the furnace sections. The second furnace is controlled to maintain a substantially constant workpiece heating temperature. A second pair of furnace sections is provided with a first furnace section utilizing coil pairs with a dual output power supply having independent phase adjustable output currents to vary the current phase relation between the coils between 0 and 180°. The change to the phase relation is used to maintain efficient heating of the metal strip above the Curie temperature.