US PATENT SUBCLASS 122 / 372
.~.~.~.~ Updraft


Current as of: June, 1999
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122 /   HD   LIQUID HEATERS AND VAPORIZERS

371  DF  WATER GRATE {5}
*  DD  .~ Plural firebox {1}
*  DD  .~.~ Superimposed {1}
*  DD  .~.~.~ Water grate {1}
372.~.~.~.~ Updraft


DEFINITION

Classification: 122/372

(under subclass 371) Subject matter comprising boilers not otherwise classified having superimposed fireboxes with at least one of the fuel grates of the water grate type. This type of boilers is generally used for the burning of garbage or other waste material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2, for garbage plants having water grate boilers of this type.

207, 232, 353, for water tube boilers with superposed updraft water grates.