US PATENT SUBCLASS 110 / 103
.~ Boiler controlled


Current as of: June, 1999
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110 /   HD   FURNACES

101 R  DF  FUEL FEEDERS {15}
103.~ Boiler controlled


DEFINITION

Classification: 110/103

(under subclass 101) Devices for feeding fuel whose operation is controlled by the pressure of steam in the boiler heated by the fuel.

SEE OR SEARCH THIS CLASS, SUBCLASS:

186+, for furnaces having progressive-feed grates whose movements and feeding mechanism are controlled by the pressure of steam in the boiler.

188+, for boiler controlled devices for feeding air and steam.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation,

26, for boiler pressure controlled regulating mechanism.