US PATENT SUBCLASS 110 / 286
.~ Power driven


Current as of: June, 1999
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110 /   HD   FURNACES

267  DF  INCLUDING MEANS TO FEED SOLID FUEL {4}
286.~ Power driven {2}
287  DF  .~.~> Having circular grate {1}
289  DF  .~.~> Pusher ram {1}


DEFINITION

Classification: 110/286

Power driven:

(under subclass 267) Apparatus wherein the fuel conveying means is a machine propelled by mechanical energy.

(1) Note. The term mechanical energy is to be distinguished from hand labor as being produced from a variety of electrical or mechanical motors or engines.

SEE OR SEARCH CLASS

198, Conveyors: Power-Driven,

657, for power-driven conveyors, per se, of similar structure.

266, Metallurgical Apparatus,

183, for ore treating or metal extracting means provided with power-driven conveying means. 414, Material or Article Handling,

147+, for a merely named heating chamber provided with a power-driven conveyor charging means.