US PATENT SUBCLASS 236 / 12.16
.~ Having oscillating or reciprocating valve

Current as of: June, 1999
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236 /   HD   AUTOMATIC TEMPERATURE AND HUMIDITY REGULATION

12.1  DF  MIXING FLUID OF DISSIMILAR TEMPERATURE {6}
12.16.~ Having oscillating or reciprocating valve {4}
12.17  DF  .~.~> Valving member moves about an axis {2}
12.2  DF  .~.~> Tubular valve member
12.21  DF  .~.~> Axially spaced flow control faces {1}
12.23  DF  .~.~> Ports closed by valve action

DEFINITION

Classification: 236/12.16

Having oscillating or reciprocating valve:

(under subclass 12.1) Apparatus wherein a flow control means moves in a prescribed straight line or arcuate path of travel to control fluid flow.