US PATENT SUBCLASS 123 / 41.7
.~.~ Engine encasing air duct; e.g., cowling

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}
41.7.~.~ Engine encasing air duct; e.g., cowling

DEFINITION

Classification: 123/41.7

(under subclass 41.56) Devices which comprise air ducts or passages which surround the engine to conduct or direct a stream of cooling air to or against the engine.

(1) Note. These devices are usually cowling and may include structure for supporting the air duct or cowling on the engine.

SEE OR SEARCH CLASS

180, Motor Vehicles,

68.1+, for similar structure combined with significant vehicle features.

244, Aeronautics, 53, for like structures. See (3) Note under definition of Class 244, subclass 53.