US PATENT SUBCLASS 454 / 113-- .~.~.~.~ Wind operated

US PATENT SUBCLASS 454 / 113
.~.~.~.~ Wind 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}
107	DF	.~.~ Having inlet airway {4}
112	DF	.~.~.~ With air pump {2}
113		.~.~.~.~ Wind operated

DEFINITION

Classification: 454/113

Wind operated:

(under subclass 112) Subject matter wherein the air moving apparatus is driven by moving air.

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.

106, for other railcar, bus, or trailer wind-operated fans associated with an inlet and outlet airway.

240, for a wind-operated air pump associated with a building having both an inlet and an outlet airway.