US PATENT SUBCLASS 123 / 90.58
.~.~.~.~.~ Self-contained

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

90.1  DF  POPPET VALVE OPERATING MECHANISM {19}
90.48  DF  .~ Tappet {4}
90.52  DF  .~.~ Lash adjustment {1}
90.53  DF  .~.~.~ Self-operating {2}
90.55  DF  .~.~.~.~ Hydraulic {4}
90.58.~.~.~.~.~ Self-contained

DEFINITION

Classification: 123/90.58

(under subclass 90.55) Device wherein the reciprocating hydraulic adjusting means is precharged with fluid and usually sealed; consequently, it does not require a continuous, external fluid supply (e.g., the lubricating system of an engine).