| 222 / | HD | DISPENSING | 
| 251 | DF | WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.) {30} | 
| 282 | DF | .~ With discharge volume varying means {12} | 
| 310 | DF | .~.~ With discharge controller {1} | 
| 311 | DF | .~.~.~ Rotor with discharge controller {4} | 
| 312 | DF | .~.~.~.~ Discharge passage between drum-type rotor and controller {2} | 
| 314 |  | .~.~.~.~.~ Reciprocating nonpivoted controller |