US PATENT SUBCLASS 454 / 117
.~.~.~ With air pump (e.g., wind or wheel-axle operated, etc.)


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}
115  DF  .~.~ Having outlet airway {2}
117.~.~.~ With air pump (e.g., wind or wheel-axle operated, etc.)


DEFINITION

Classification: 454/117

With air pump (e.g., wind or wheel-axle operated, etc.):

(under subclass 115) Subject matter comprising an apparatus for adding energy to and moving the air.

(1) Note. The air moving apparatus is usually a fan which may be driven by various means such as moving air or 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 in a forced recirculation system.

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

106, for a railcar, bus, or trailer having both an inlet and an outlet airway and including wheel-axle operated fans. 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.