US PATENT SUBCLASS 432 / 137
.~.~.~ Movable chamber floor section carried by external guide or axle

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}
136  DF  .~.~ Combustion products generated in or fed to chamber {4}
137.~.~.~ Movable chamber floor section carried by external guide or axle {1}
138  DF  .~.~.~.~> Rotary section

DEFINITION

Classification: 432/137

(under subclass 136) Apparatus in which the work moving device is a work supporting section of the bottom wall of the work chamber, said section of the chamber wall being mounted for movement relative to the rest of the chamber on an axle or guide means outside of the heated work chamber.