US PATENT SUBCLASS 137 / 818
.~.~.~ With variable or selectable source of control-input signal

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}
814  DF  .~ System comprising plural fluidic devices or stages {1}
815  DF  .~.~ Plural power inputs (e.g., parallel inputs) {3}
818.~.~.~ With variable or selectable source of control-input signal

DEFINITION

Classification: 137/818

(under subclass 815) System provided with a supply of control input fluid for at least one of said devices, which supply can be regulated or altered, or wherein the supply that is used for control purposes can be chosen from a plurality of supplies available.

SEE OR SEARCH THIS CLASS, SUBCLASS:

803, Glossary, for a definition of "Control input".