US PATENT SUBCLASS 123 / 41.8
.~.~.~ Spiral passages


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

41.01  DF  COOLING {27}
41.72  DF  .~ With jacketed head and/or cylinder {8}
41.79  DF  .~.~ With passages, baffles, etc. {1}
41.8.~.~.~ Spiral passages


DEFINITION

Classification: 123/41.8

(under subclass 41.79) Structures in which the path formed for the coolant is spiral, or forms an ascending or descending path extending around the cylinder.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.68, for air cooled cylinders having spiral passages or conduits.