US PATENT SUBCLASS 123 / 41.76
.~.~ With cooled valve seats or guides

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}
41.76.~.~ With cooled valve seats or guides {2}
41.77  DF  .~.~.~> Poppet-type valves
41.78  DF  .~.~.~> Cylinder side wall valves

DEFINITION

Classification: 123/41.76

(under subclass 41.72) Structures in which the cooling chamber is especially adapted to cool the valve areas, i.e., passages, seats and valve stem guides.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.16, for valves and cylinder ports having coolant sealed therein.

41.34, for means for cooling the moving parts of this area internally.

41.4, for internal cooling of valves combined with external

cooling of valve seats or guides.

41.85, for cooling of valve seats or guides, per se.