US PATENT SUBCLASS 137 / 211
.~.~.~.~ Gas injectors

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

154  DF  DIVERSE FLUID CONTAINING PRESSURE SYSTEMS {7}
206  DF  .~ Gas pressure storage over or displacement of liquid {5}
209  DF  .~.~ With gas maintenance or application {3}
210  DF  .~.~.~ Gas carried by or evolved from liquid {1}
211.~.~.~.~ Gas injectors

DEFINITION

Classification: 137/211

(under subclass 210) Apparatus with a device to add or inject gas into the liquid of the system to replenish the gas over the liquid.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus, appropriate subclasses for carbonators, per se.