US PATENT SUBCLASS 454 / 116
.~.~.~ With current inducing jet
Current as of:
June, 1999
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454 /
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VENTILATION
69
DF
VEHICLE (E.G., AUTOMOBILE, ETC.)
{15}
83
DF
.~ Railcar, bus, or trailer {10}
115
DF
.~.~ Having outlet airway {2}
116
.~.~.~ With current inducing jet
DEFINITION
Classification: 454/116
With current inducing jet:
(under subclass 115) Subject matter comprising a nozzle which ejects a high velocity flow stream to draw the exhausting air from the ventilated space.
(1) Note. The high velocity flow stream is usually diverted natural air current (i.e., wind) resulting from movement of the vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
22+, for a chimney or stacktop which uses a diverted natural air current to induce flow in the outlet airway.
39+, for other chimney or stacktop structures which use current inducing jets to induce flow in the outlet airway.
163, for other vehicles which use a current inducing jet (often wind caused by the movement of the vehicle) to induce flow in the outlet airway.
