US PATENT SUBCLASS 123 / 41.63
.~.~ With impelling means

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

41.01  DF  COOLING {27}
41.56  DF  .~ Air-cooled {7}
41.63.~.~ With impelling means {2}
41.64  DF  .~.~.~> Jet type
41.65  DF  .~.~.~> Fan type {1}

DEFINITION

Classification: 123/41.63

(under subclass 41.56) Subject matter which includes devices for impelling cooling air over the engine.

(1) Note. The impelling means includes fans, pumps, or like devices but excludes cowlings, ducts, or the like which merely direct the flow of air over the engine due to the movement of the vehicle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.48, for means to force or direct air over a surface of a liquid coolant.