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:
Dec. 03, 2024
Filed:
May. 21, 2021
Applicant:
Fives North American Combustion, Inc., Cleveland, OH (US);
Inventors:
Thomas F. Robertson, Medina, OH (US);
Douglas A. Clauss, Copley, OH (US);
Assignee:
Fives North American Combustion, Inc., Cleveland, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27D 25/00 (2010.01); C22B 9/00 (2006.01); C22B 9/05 (2006.01); F27B 3/22 (2006.01); F27B 14/08 (2006.01); F27D 1/00 (2006.01); F27D 3/00 (2006.01); F27D 3/14 (2006.01); F27D 7/02 (2006.01); F27D 7/06 (2006.01); C03B 5/43 (2006.01); C03B 18/20 (2006.01); F27B 7/20 (2006.01);
U.S. Cl.
CPC ...
F27D 25/008 (2013.01); C22B 9/006 (2013.01); C22B 9/05 (2013.01); F27B 3/22 (2013.01); F27D 1/0006 (2013.01); F27D 3/0024 (2013.01); F27D 3/0025 (2013.01); F27D 3/14 (2013.01); F27D 7/02 (2013.01); F27D 7/06 (2013.01); C03B 5/43 (2013.01); C03B 18/20 (2013.01); F27B 7/2083 (2013.01); F27B 2014/0843 (2013.01); F27D 2007/023 (2013.01);
Abstract
A furnace has a melting chamber with a periphery defined by a surrounding wall structure. The furnace is provided with a purge system configured to direct inert gas to flow downward in the melting chamber in the configuration of a curtain that adjoins the wall structure and reaches only partially around the periphery of the melting chamber.