US PATENT SUBCLASS 236 / 12.2
.~.~ Tubular valve member

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  DF  .~ Having oscillating or reciprocating valve {4}
12.2.~.~ Tubular valve member

DEFINITION

Classification: 236/12.2

Tubular valve member:

(under subclass 12.16) Apparatus wherein the flow control means comprises a hollow sleeve or cylinder-like member or portion.