US PATENT SUBCLASS 137 / 258
.~.~.~ With rotary filling and emptying head

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

255  DF  PLURAL TANKS OR COMPARTMENTS WITH PARALLEL FLOW {8}
256  DF  .~ Sequentially filled and emptied (e.g., holding type) {1}
257  DF  .~.~ With relative rotation of tank group and filling head {1}
258.~.~.~ With rotary filling and emptying head

DEFINITION

Classification: 137/258

(under subclass 257) Apparatus in which the filling means rotates with respect to the tank group and the filling means also includes means for emptying the tanks.

SEE OR SEARCH THIS CLASS, SUBCLASS:

627, for sequential operation of distributing and collecting valves, and see the search notes thereto.