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:
May. 18, 1999
Filed:
May. 08, 1997
Applicant:
Inventor:
Maynard Guotsuen Ding, Yorktown Heights, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23C / ;
U.S. Cl.
CPC ...
431-8 ; 431 10 ; 431187 ;
Abstract
A dual oxidant burner having an inner conduit with a passage communicating with a source of fuel, an outer conduit over the inner conduit and an intermediate conduit between the inner and outer conduits. The three conduits form an inner passage between the inner and intermediate conduits communicating with a source of oxygen, and an outer passage between the intermediate and outer conduits communicating with a source of air. The fuel and the two oxidants are mixed in a furnace or other combustion zone beyond the outlet of the nozzle and the two passages and their flow amounts are individually adjusted to establish the burner flame.