(under subclass 39.02) Processes involving the addition of steam and/or water to the ingredients utilized to generate the motive fluid, or to the motive fluid, prior to its discharge from the motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39.53+, for apparatus involving the addition of steam and/or water to the motive fluid.
SEE OR SEARCH CLASS
48, Gas: Heating and Illuminating,
215, for processes wherein oil, steam and air are injected into a highly heated retort.
