.~ Helicopter or auto-rotating wing sustained, i.e., gyroplanes {7}
17.13
.~.~ Automatic or condition responsive control
DEFINITION
Classification: 244/17.13
(under subclass 17.11) Gyroplanes in which means responsive to a condition of the aircraft controls the rotary wing system.
(1) Note. The condition responsive means of this subclass comprises separate and distinct controlling means and does not include those rotary wings which are automatically controlled by a condition of the rotary wing itself, e.g., free blade type.
(2) Note. The mere forward motion of the aircraft is not significant aircraft structure as set forth in (3) Note, subclass 17.11, this class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76+, for automatic control of aircraft.
SEE OR SEARCH CLASS 416, Fluid Reaction Surfaces (i.e., Impellers),
27+, and 31+ for automatic controls for impellers where no aircraft combination is claimed, especially subclass 40 for impeller control responsive to relative medium flow velocity (e.g., vehicle speed, etc.) and subclasses 103+ and 131+ for free blade-type impellers. See (2) Note above.
