US PATENT SUBCLASS 48 / 102 A
.~.~.~ Utilizing heat from exhaust gases

Current as of: June, 1999
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48 /   HD   GAS: HEATING AND ILLUMINATING

61  DF  GENERATORS {4}
89  DF  .~ Retort {12}
102 R  DF  .~.~ Oil {6}
102 A.~.~.~ Utilizing heat from exhaust gases

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 48/102

Retorts containing a body of oil or into which oil is injected.

SEE OR SEARCH CLASS

123, Internal-Combustion Engines,

568.11+, for a vapor generator forming a part of an explosive engine.

431, Combustion,

207+, for a burner fed by a retort and for a retort utilizing heat derived from the generated gas. However, where an unburned portion of the gas generated in the retort is purified, fixed or stored classification is in appropriate subclass of Class 48.