US PATENT SUBCLASS 454 / 71
.~.~ Ventilation of aircraft cabin

Current as of: June, 1999
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454 /   HD   VENTILATION

69  DF  VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
70  DF  .~ Pressure regulation {1}
71.~.~ Ventilation of aircraft cabin {3}
72  DF  .~.~.~> Auxiliary control system
73  DF  .~.~.~> Mechanical operation of control system (e.g., by bellows or diaphragm, etc.)
74  DF  .~.~.~> Control system having electrical or electronic component

DEFINITION

Classification: 454/71

Ventilation of aircraft cabin:

(under subclass 70) Subject matter wherein the ventilated area is the interior, or compartment thereof, of an aircraft.

SEE OR SEARCH CLASS

165, Heat Exchange,

234+, for pressure control of a heated and/or cooled aircraft cabin where specific heating or cooling means are included.