US PATENT SUBCLASS 454 / 106
.~.~.~.~ Wind or wheel-axle operated

Current as of: June, 1999
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454 /   HD   VENTILATION

69  DF  VEHICLE (E.G., AUTOMOBILE, ETC.) {15}
83  DF  .~ Railcar, bus, or trailer {10}
103  DF  .~.~ Having both inlet and outlet airways {2}
105  DF  .~.~.~ With air pump {1}
106.~.~.~.~ Wind or wheel-axle operated

DEFINITION

Classification: 454/106

Wind or wheel-axle operated:

(under subclass 105) Subject matter wherein the air moving apparatus is driven by moving air or by a rotating shaft which supports a wheel of the transporting device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, for a wind-operated fan associated with chimney or stacktop structure.

101, for a wind-operated fan in a railcar, bus, or trailer used for forced recirculation.

102, for a wheel-axle operated fan in a railcar, bus, or trailer used in a forced recirculation system.

113, for a railcar, bus, or trailer wind-operated fan associated with an inlet airway.

114, for a railcar, bus, or trailer having a wheel-axle operated fan associated with an inlet airway.

117, for a railcar, bus, or trailer having a wind-operated fan or a wheel-axle operated fan associated with an outlet airway. 240, for a wind-operated air pump associated with a building having both an inlet and an outlet airway.