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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.:

US 10837090 B1

PDFFull Text
Date of Patent:
Nov. 17, 2020

Filed:

Sep. 27, 2017

Magnetic levitation heating of metal with controlled surface quality

Applicant:

Novelis Inc., Atlanta, GA (US);

Inventors:

David Anthony Gaensbauer, Atlanta, GA (US);

David Edward Gantzer, Woodstock, GA (US);

Robert Bruce Wagstaff, Greenacres, WA (US);

Theresa Elizabeth MacFarlane, Woodstock, GA (US);

Rodger Brown, Atlanta, GA (US);

Andrew James Hobbis, Kennesaw, GA (US);

Antoine Jean Willy Pralong, Granges, CH;

Assignee:

NOVELIS INC., Atlanta, GA (US);

Attorney:

Kilpatrick Townsend & Stockton LLP

Primary Examiner:

Scott R Kastler

Assistant Examiner:

Michael Aboagye

Int. Cl.
CPC ...
H05B 6/32 (2006.01); F27D 99/00 (2010.01); H05B 6/36 (2006.01); C22F 1/04 (2006.01); B21C 47/18 (2006.01); B21C 47/34 (2006.01); H05B 6/10 (2006.01); B21C 47/16 (2006.01); B65H 29/00 (2006.01); B65H 29/20 (2006.01); B21D 22/02 (2006.01); B21D 37/16 (2006.01); C21D 1/42 (2006.01); B21B 39/02 (2006.01); B21B 39/34 (2006.01); B21C 37/02 (2006.01); C21D 1/04 (2006.01); C22C 21/02 (2006.01); C22C 21/06 (2006.01); C22C 21/10 (2006.01); C22C 21/12 (2006.01); B65G 54/02 (2006.01); C22F 1/02 (2006.01); H02N 15/00 (2006.01); F27D 19/00 (2006.01);
U.S. Cl.
CPC ...
C22F 1/04 (2013.01); B21B 39/02 (2013.01); B21B 39/34 (2013.01); B21C 47/16 (2013.01); B21C 47/18 (2013.01); B21C 47/3433 (2013.01); B21C 47/3483 (2013.01); B21D 22/022 (2013.01); B21D 37/16 (2013.01); B65H 29/006 (2013.01); B65H 29/20 (2013.01); C21D 1/42 (2013.01); F27D 99/0001 (2013.01); H05B 6/104 (2013.01); H05B 6/32 (2013.01); H05B 6/36 (2013.01); B21C 37/02 (2013.01); B65G 54/02 (2013.01); C21D 1/04 (2013.01); C22C 21/02 (2013.01); C22C 21/06 (2013.01); C22C 21/10 (2013.01); C22C 21/12 (2013.01); C22F 1/02 (2013.01); F27D 2019/0003 (2013.01); H02N 15/00 (2013.01); Y02P 10/25 (2015.11);
Abstract

A non-contact heating apparatus uses a series of rotating magnets to heat, levitate, and/or move metal articles therethrough. A first series of rotating magnets heats the metal article to a desired temperature. A second series of rotating magnets levitates the metal article within the heating apparatus and maintains desired tension in the metal article, including urging the metal article through the heating apparatus. The heating apparatus can extend sufficiently far to soak the metal article at the desired temperature for a desired duration. The rotating magnets can be positioned outside of an electrically non-conductive, heat resistant chamber filled with an inert or mildly reactive gas, through which the metal article passes in the heating apparatus.

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