US PATENT SUBCLASS 432 / 196
.~.~ Spaced fuel or air feeds to work chamber

Current as of: June, 1999
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432 /   HD   HEATING

120  DF  WORK CHAMBER HAVING HEATING MEANS {12}
159  DF  .~ Combustion products heat work by contact {19}
196.~.~ Spaced fuel or air feeds to work chamber

DEFINITION

Classification: 432/196

(under subclass 159) Apparatus in which fuel that burns within the work chamber or the air supporting combustion within the work chamber, is fed into the chamber at plural distinct points spaced from each other.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146+, for plural burners longitudinally spaced along a work path; subclass 149 for combustion material supply ports spaced along a work path; and subclass 150 for spaced combustion product exhaust ports spaced along a work path.