US PATENT SUBCLASS 123 / 58.9
.~.~ Oscillating or reciprocating, nonpoppet valve

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}
58.9.~.~ Oscillating or reciprocating, nonpoppet valve

DEFINITION

Classification: 123/58.9

Oscillating or reciprocating, nonpoppet valve:

(under subclass 58.1) Multiple cylinder engine including a valve mechanism which moves to-and-fro excluding poppet valves.

(1) Note. A poppet valve consists of a valve member including a rodlike portion (i.e., stem) connected to the center of a disk-shaped portion, said valve member is

resiliently biased into sealing engagement with the rim of a hole (i.e., the seat)