US PATENT SUBCLASS 48 / 106
.~.~.~ Automatic feed

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}
106.~.~.~ Automatic feed

DEFINITION

Classification: 48/106

Devices whereby the oil fed to the retort is regulated by the pressure of the gas either in the retort or gasometer.

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