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:
Aug. 24, 2010
Filed:
Jun. 01, 2005
Vasilios Soupos, Chicago, IL (US);
Serguei Zelepouga, Hoffman Estates, IL (US);
David M. Rue, Chicago, IL (US);
Hamid A. Abbasi, Naperville, IL (US);
Vasilios Soupos, Chicago, IL (US);
Serguei Zelepouga, Hoffman Estates, IL (US);
David M. Rue, Chicago, IL (US);
Hamid A. Abbasi, Naperville, IL (US);
Gas Technology Institute, Des Plaines, IL (US);
Abstract
A combustion method and apparatus which produce a hybrid flame for heating metals and metal alloys, which hybrid flame has the characteristic of having an oxidant-lean portion proximate the metal or metal alloy and having an oxidant-rich portion disposed above the oxidant lean portion. This hybrid flame is produced by introducing fuel and primary combustion oxidant into the furnace chamber containing the metal or metal alloy in a substoichiometric ratio to produce a fuel-rich flame and by introducing a secondary combustion oxidant into the furnace chamber above the fuel-rich flame in a manner whereby mixing of the secondary combustion oxidant with the fuel-rich flame is delayed for a portion of the length of the flame.