US PATENT SUBCLASS 123 / 59.2
.~.~.~ Tapered

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

52.1  DF  MULTIPLE CYLINDER {7}
58.1  DF  .~ Cylinders in-line {10}
59.1  DF  .~.~ Rotary valve {3}
59.2.~.~.~ Tapered

DEFINITION

Classification: 123/59.2

Tapered:

(under subclass 59.1) Multiple cylinder engine wherein the outer surface of revolution of the rotary valve includes at least one conical segment, the conical segment is received in a conical bore thereby sealing the conical portion of the rotary valve.