US PATENT SUBCLASS 110 / 291
.~.~.~.~ Inclined step grate

Current as of: June, 1999
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110 /   HD   FURNACES

267  DF  INCLUDING MEANS TO FEED SOLID FUEL {4}
286  DF  .~ Power driven {2}
289  DF  .~.~ Pusher ram {1}
290  DF  .~.~.~ Parallel to grate {1}
291.~.~.~.~ Inclined step grate

DEFINITION

Classification: 110/291

Inclined step grate:

(under subclass 290) Apparatus wherein the grate assemblage is composed such that the elements overlap one another in a descending configuration thereby producing a steplike structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

328, for a grate element, per se.