US PATENT SUBCLASS 432 / 128
.~.~ Plural distinct chambers

Current as of: June, 1999
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432 /   HD   HEATING

120  DF  WORK CHAMBER HAVING HEATING MEANS {12}
121  DF  .~ Having means by which work is progressed or moved mechanically {9}
128.~.~ Plural distinct chambers {2}
129  DF  .~.~.~> Work moved to drop between shelf or trough-type chambers {2}
133  DF  .~.~.~> Having combustion products generated in or fed to work chamber

DEFINITION

Classification: 432/128

(under subclass 121) Apparatus in which work progresses through two distinct chambers.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids,

180, for a drier having plural units each comprising a stationary receptacle or tube with an agitator or conveyor and subclasses 203+ for a housing with conveyors providing plural zigzag treated material paths.

99, Foods and Beverages: Apparatus,

351+, for a filled receptacle type of food cooking apparatus having successive treating zones or units.