(under subclass 39.01) Plants including a turbine of the so-called "closed pocket" type. The motive fluid, introduced into these pockets, is trapped therein, and while so trapped is incapable of exerting any useful energy release by expansion, impulse, or reaction. Turbines of this type are considered to be inoperative to produce useful power.
(1) Note. To be classified herein, the patent, in addition to disclosing a closed pocket turbine, should claim the turbine more specifically than merely as a "turbine" or "rotor", or similar broad language.
