US PATENT SUBCLASS 251 / 129.21
.~.~ Coil surrounds valve port or flow line

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

129.01  DF  ELECTRICALLY ACTUATED VALVE {11}
129.15  DF  .~ Including solenoid {7}
129.21.~.~ Coil surrounds valve port or flow line

DEFINITION

Classification: 251/129.21

Coil surrounds valve port or flow line:

(under subclass 129.15) Subject matter wherein the coil is arranged around the passage so that flow is through the coil.

(1) Note. The passage may be a valve port adjunct.

(2) Note. The incidental heat exchange resulting from this arrangement is not sufficient basis for classification as a heat exchange device.

SEE OR SEARCH CLASS

137, Fluid Handling,

341, for electric heating elements for fluid handling systems, and see the search notes thereto. See (2) Note.