US PATENT SUBCLASS 431 / 349
ADJUNCTIVE, RELATIVELY LOW VELOCITY, FLAME MAINTAINING FUEL PASSAGE


Current as of: June, 1999
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431 /   HD   COMBUSTION

349ADJUNCTIVE, RELATIVELY LOW VELOCITY, FLAME MAINTAINING FUEL PASSAGE


DEFINITION

Classification: 431/349

(under the class definition) Apparatus in which a flame holder has means simultaneously discharging fuel in a high velocity stream and in a supplemental lower velocity stream, the lower velocity stream acting as pilot to reignite the high velocity stream upon accidental flame out.

SEE OR SEARCH THIS CLASS, SUBCLASS:

278+, for structurally related flame holding sections, one separately supplied or controlled; and

286, for a burner having means transmitting flame between separate flame holding sections.

SEE OR SEARCH CLASS

239, Fluid Sprinkling, Spraying, and Diffusing, 548+, for a sprinkling, spraying or diffusing device of general utility having unitary plural outlet means in the device; and subclass 601, for a particular orifice shape for such a device.