US PATENT SUBCLASS 123 / 41.77
.~.~.~ Poppet-type valves

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  DF  .~.~ With cooled valve seats or guides {2}
41.77.~.~.~ Poppet-type valves

DEFINITION

Classification: 123/41.77

(under subclass 41.76) Cooling means in which the valve seats or guides support a poppet-type valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

41.41, for internal cooling of poppet type valves.