Abstract: A micro gas burner is provided that generates a stable, pre-mixed flame that produces little to no soot or unburned hydrocarbons. The gas burner includes a fuel inlet, nozzle, oxygenation chamber with at least one air inlet, a mixing chamber having a frustoconical inner wall, at least one permeable barrier and a flame holder. The gas burner thoroughly mixes fuel and entrained air to form a nearly stoichiometric mixture prior to combustion. The gas burner mixes the fuel and air so thoroughly that it requires a lower fuel flow rate than would otherwise be necessary to produce a stable, pre-mixed flame. The gas burner may include an optional flame tube in which a flame is contained and sequestered from diffusing air.
Type:
Grant
Filed:
October 25, 2002
Date of Patent:
December 7, 2004
Assignee:
Brown & Williamson Tobacco Corporation
Inventors:
Frank Kelley St. Charles, Kayyani C. Adiga
Abstract: A light fixture having a relatively narrow light emitting aperture in a bottom thereof, includes a pair of elliptically shaped reflectors mounted therein, wherein first terminating ends of each reflector are connected, the elliptically shaped reflectors extending in parallel along the housing. Disposed inwardly from each reflector and spaced therefrom are light sources, each said light source extending in parallel relation. The ellipsoidal reflectors being positioned to reflect light through the narrow width aperture.