US PATENT SUBCLASS 123 / 190.14
.~.~ Disc, cone, or sphere shaped

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

188.1  DF  VALVE {10}
190.1  DF  .~ Rotary {7}
190.14.~.~ Disc, cone, or sphere shaped {1}
190.15  DF  .~.~.~> Controls plural cylinders

DEFINITION

Classification: 123/190.14

Disc, cone, or sphere shaped:

(under subclass 190.1) Apparatus wherein the rotating valve body is in the form of either (1) a thin flat rotor; (2) a surface generated by a straight line passing through a fixed point and moving along the intersection with a fixed curve; or (3) a three-dimensional surface all points of which are equidistant from a fixed point.