US PATENT SUBCLASS 432 / 189
.~.~.~ Having pump or jet means forcing air into combustion 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}
186  DF  .~.~ Distinct combustion chamber feeds work chamber {6}
189.~.~.~ Having pump or jet means forcing air into combustion chamber

DEFINITION

Classification: 432/189

(under subclass 186) Apparatus in which combustion air is forced into the combustion chamber by a pump or a steam jet.