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:
Oct. 08, 2002
Filed:
Jul. 11, 2001
Leiv Eiriksson Nyfotek AS, Trondheim, NO;
Abstract
A gas burner includes a tubular shaped housing having a proximal end and a distal end, the housing tapering inwardly to an outlet at the distal end to form a truncated cone. A gas supply tube is disposed longitudinally centrally within the housing and extends from the proximal end to a point adjacent the distal end in a combustion zone and terminates in a closed end wall, the supply tube and the housing defining therebetween an annular space for supply of air to the combustion zone at a pressure slightly above atmospheric. A vortex generator is disposed upstream of the distal end of the housing and includes a plurality of baffle flights extending longitudinally within the housing a radially from the gas supply tube to the inner wall of the housing, thereby supporting the gas supply tube. The gas supply tube defines a plurality of radially arranged openings therein disposed between the vortex generator and the closed end wall, the openings being disposed at a distance from the end wall which is one to four times the diameter of the tube. The baffle flights have an aerodynamically curved shape to produce a helical movement to air which passes therethrough and which mixes with gas exiting the openings in the gas supply tube.