US PATENT SUBCLASS 110 / 271-- .~.~.~.~ And chain seal

US PATENT SUBCLASS 110 / 271
.~.~.~.~ And chain seal

Current as of: June, 1999
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110 /	HD	FURNACES

267	DF	INCLUDING MEANS TO FEED SOLID FUEL {4}
268	DF	.~ Movable grate {5}
269	DF	.~.~ Endless chain {3}
270	DF	.~.~.~ Including air supply means {1}
271		.~.~.~.~ And chain seal {1}
272	DF	.~.~.~.~.~> Between runs

DEFINITION

Classification: 110/271

And chain seal:

(under subclass 270) Apparatus further provided with means contiguous to and communicating with the chain grate to prevent the escape of supplied air or burning gases associated with the burning fuel.

SEE OR SEARCH CLASS

266, Metallurgical Apparatus,

179, for an ore treating or metal extracting apparatus provided with a traveling grate having seal means.

432, Heating,

242, for subcombination feeding or conveying structure provided with means to seal the opening by which the work is moved into the chamber, or subclass 244 for preventing leakage through the chamber wall.