US PATENT SUBCLASS 137 / 837
.~.~.~ Multiple control-input passages

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

803  DF  FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM) {11}
834  DF  .~ Device including passages having V over T configuration {5}
836  DF  .~.~ With particular characteristics of control input {1}
837.~.~.~ Multiple control-input passages

DEFINITION

Classification: 137/837

(under subclass 836) Device wherein the special structure includes a plurality of second passages or a plurality of third passages, the number of passages permitting control-input signal to enter the common zone thus being three or more.