US PATENT SUBCLASS 222 / 57
.~ By weight, volume or pressure of a second dispensed material


Current as of: June, 1999
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222 /   HD   DISPENSING

52  DF  AUTOMATIC CONTROL {10}
57.~ By weight, volume or pressure of a second dispensed material


DEFINITION

Classification: 222/57

(under subclass 52) Dispensers having means controlling the rate of discharge from a source, the means being responsive to the volume, weight, pressure, or rate of flow of second material, for which dispensing means may or may not be provided.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55, and 56, for dispensers controlled by the volume, weight or pressure of the material dispensed.

SEE OR SEARCH CLASS

137, Fluid Handling,

3, for processes of mixing under conditions of automatic control, subclasses 87.01+ for self-proportioning or correlating fluid handling systems, especially subclasses 88+ for automatic mixture control, subclass 94 for fuel control by boiler or water system condition, subclasses 98+ for self-proportioning flow systems, and subclasses 111+ for self-controlled branched flow systems comprising plural inflow branches. 210, Liquid Purification or Separation,

109+, for discharge of treated material from a separator there provided for.

236, Automatic Temperature and Humidity, Regulation,

12.1+, for thermal control of mixing of two fluids.