US PATENT SUBCLASS 432 / 143
.~.~.~ Having means forming work path from inlet to outlet

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}
143.~.~.~ Having means forming work path from inlet to outlet {5}
144  DF  .~.~.~.~> Having structure circulating work atmosphere along or across path {1}
146  DF  .~.~.~.~> Plural burners longitudinal spaced in path {1}
148  DF  .~.~.~.~> Baffle, heat radiator, or heating flue in chamber along path
149  DF  .~.~.~.~> Combustion material supply ports spaced along path
150  DF  .~.~.~.~> Spaced combustion products exhaust ports

DEFINITION

Classification: 432/143

(under subclass 136) Apparatus in which the chamber means includes a distinct work inlet opening, a distinct outlet opening, and structure moving work from the inlet to the outlet or defining a path directing or guiding work for such movement.