(under subclass 2) Processes controlling the supply of fuel or air discharged into the combustion zone.
SEE OR SEARCH CLASS
137, Fluid Handling,
6, for a process comprising controlling the mixing of plural fluids of diverse characteristics or conditions by the heat of combustion of the mixture.
239, Fluid Sprinkling, Spraying, and Diffusing,
8+, for a sprinkling, spraying or diffusing process not specialized to combustion including the steps of mixing or combining air, gas or steam with the material to be sprayed.
