(under subclass 82) Apparatus which utilize a fluid jet and one or more jet receiving orifices with the control condition varying the pressure in the orifices by varying the amount of jet fluid entering the orifices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
625.6, for a jet control type pressure modulator combined with a pilot valve and a supply and exhaust valve.
SEE OR SEARCH CLASS
91, Motors: Expansible Chamber Type,
3, for expansible chamber motors combined with a jet type control therefor.
239, Fluid Sprinkling, Spraying, and Diffusing, appropriate subclasses, especially 505+, 518+ and 587.1+ for jet producing discharge members, per se.