US PATENT SUBCLASS 123 / 90.29
.~.~ Oscillating movement converted internally


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

90.1  DF  POPPET VALVE OPERATING MECHANISM {19}
90.28  DF  .~ With nonvalving movement (e.g., about valve stem) {2}
90.29.~.~ Oscillating movement converted internally


DEFINITION

Classification: 123/90.29

(under subclass 90.28) Device wherein means is provided within the operating mechanism to convert the oscillation imparted to the valve by the compression and decompression of its return spring into unidirectional movement (i.e., rotation).

SEE OR SEARCH THIS CLASS, SUBCLASS:

90.28+, for devices generally similar to those of this subclass but involving (e.g., by attachment thereto) an element external to the operating mechanism.