US PATENT SUBCLASS 123 / 433
.~.~ One inlet is uncovered by piston travel

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

429  DF  COMBUSTION CHAMBER MEANS COMBINED WITH AIR-FUEL MIXTURE FORMING MEANS {3}
432  DF  .~ Air or combustible mixture entering the combustion chamber through plural inlets {1}
433.~.~ One inlet is uncovered by piston travel

DEFINITION

Classification: 123/433

One inlet is uncovered by piston travel:

(under subclass 432) Subject matter in which one of the air or mixture inlet ports is constructed so as to be controlled by the engine piston.