US PATENT SUBCLASS 432 / 147
.~.~.~.~.~ Radiant type

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  DF  .~.~.~ Having means forming work path from inlet to outlet {5}
146  DF  .~.~.~.~ Plural burners longitudinal spaced in path {1}
147.~.~.~.~.~ Radiant type

DEFINITION

Classification: 432/147

(under subclass 146) Apparatus in which the burner includes structure in the path of flame that, by its mass, conductivity and composition, is particularly adapted to discharge radiant energy toward the work path when heated.