US PATENT SUBCLASS 137 / 88
.~ Mixture condition maintaining or sensing

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

87.01  DF  SELF-PROPORTIONING OR CORRELATING SYSTEMS {8}
88.~ Mixture condition maintaining or sensing {4}
89  DF  .~.~> Dividing and recombining flow
91  DF  .~.~> By specific gravity
92  DF  .~.~> By viscosity or consistency
93  DF  .~.~> By optical or chemical property

DEFINITION

Classification: 137/88

(under subclass 87.01) Systems in which a condition of a fluid mixture is maintained by controlling the flow of at least one of the fluids mixed in response to a means which sense the condition of the mixture.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3+, for the corresponding processes.