US PATENT SUBCLASS 110 / 277
.~.~.~ Conical type

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}
275  DF  .~.~ Rotary {2}
277.~.~.~ Conical type

DEFINITION

Classification: 110/277

Conical type:

(under subclass 275) Apparatus wherein the rotary grate is in the shape of a pyramid having a circular base.

(1) Note. The grate may be either of an upright or an inverted cone shape.

SEE OR SEARCH THIS CLASS, SUBCLASS:

287+, for similar stationary inverted frustoconical grate structure.