Appeal 2006-1768
Application 10/389,327
INTRODUCTION
The claims are directed to a burner for the combustion of fuel in a
furnace and a method of combustion (Specification ¶ [0002]). Claim 1 is
illustrative:
1. A burner for the combustion of fuel in a furnace, said burner
comprising:
(a) a burner tube having a downstream end and an upstream end;
(b) a fuel orifice located adjacent the upstream end of said burner
tube, for introducing fuel into said burner tube;
(c) a burner tip mounted on the downstream end of said burner
tube and adjacent a first opening in the furnace, said burner tip having a
plurality of main ports in an external surface thereof so that combustion of
the fuel takes place at said external surface of said burner tip, the number
and dimensions of said main ports in said external surface being such that
the total area of the main ports in said external surface is at least 1 square
inch per million (MM) Btu/hr burner capacity; and
(d) means for drawing flue gas from said furnace or air from a
source of air or mixtures thereof in response to an inspirating effect of
uncombusted fuel flowing through said burner tube from its upstream end
towards its downstream end.
The Examiner relies on the following prior art references as evidence
of unpatentability:
Ferguson US 2,813,578 Nov. 19, 1957
Fischer EP 374,423 A3 Jun. 27, 1990
Dinicolantonio US 5,092,761 Mar. 3, 1992
Johnson US 5,688,115 Nov. 18, 1997
Newby US 5,813,846 Sep. 29, 1998
2
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