US PATENT SUBCLASS 60 / 39.3
.~.~.~ Water or steam

Current as of: June, 1999
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60 /   HD   POWER PLANTS

39.01  DF  COMBUSTION PRODUCTS USED AS MOTIVE FLUID {31}
39.2  DF  .~ With regulation of power output {3}
39.24  DF  .~.~ Automatic {6}
39.3.~.~.~ Water or steam

DEFINITION

Classification: 60/39.3

(under subclass 39.24) Combinations wherein the means to vary the rate of power output regulates the quantity of water or steam comprising an ingredient to produce the motive fluid.