US PATENT SUBCLASS 244 / 17.25
.~.~ Lifting rotor having lift direction varying means

Current as of: June, 1999
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244 /   HD   AERONAUTICS

4 R  DF  AIRCRAFT, HEAVIER-THAN-AIR {14}
17.11  DF  .~ Helicopter or auto-rotating wing sustained, i.e., gyroplanes {7}
17.25.~.~ Lifting rotor having lift direction varying means

DEFINITION

Classification: 244/17.25

(under subclass 17.11) Gyroplanes in which the direction of lift of the impeller is variable, either by a cyclic pitch control of the impeller thereby tilting the virtual axis of the impeller or by tilting the real axis of the impeller.

SEE OR SEARCH CLASS

416, Fluid Reaction Surfaces (i.e., Impellers),

98+, and 148 for impellers, per se, having a tiltable axis or cyclic pitch control.