US PATENT SUBCLASS 432 / 165
.~.~.~.~ Having serially connected regenerator

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}
163  DF  .~.~ Plural structurally related work chambers {3}
164  DF  .~.~.~ Connected for serial flow of combustion products {6}
165.~.~.~.~ Having serially connected regenerator

DEFINITION

Classification: 432/165

(under subclass 164) Apparatus including a regenerator type heat exchanger connected in line with the serial connected work chambers.