US PATENT SUBCLASS 60 / 268
.~ Including counter rotating rotors

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

200.1  DF  REACTION MOTOR (E.G., MOTIVE FLUID GENERATOR AND REACTION NOZZLE, ETC.) {28}
268.~ Including counter rotating rotors

DEFINITION

Classification: 60/268

(under subclass 200.1) Apparatus having a plurality of rotary means two or more of which rotate in opposite directions, each rotary means having a means to compress a propellant and

a means driving said rotary means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

236, for reaction motors having counter rotating turbine rotors with condition responsive means which may control the fuel supply and motive fluid ejecting means opening.

SEE OR SEARCH CLASS

415, Rotary Kinetic Fluid Motors or Pumps,

60+, for counter rotating rotors in a device of the type there classified. 416, Fluid Reaction Surfaces (i.e., Impellers),

128+, for oppositely rotating impellers, per se.