| 210 / | HD | LIQUID PURIFICATION OR SEPARATION |
|
| 348 |  | FILTER {25} |
| 349 | DF | .~> Pulsation dampener or gas trapping |
| 350 | DF | .~> With movable means to compress medium {2} |
| 353 | DF | .~> Free cleaning means, e.g., loose abrading particles |
| 354 | DF | .~> Medium, cleaner or agitator moved by fluid {2} |
| 357 | DF | .~> Relatively movable members interleaved for cleaning |
| 358 | DF | .~> Imperforate drum, medium on arc, chord or end |
| 359 | DF | .~> Movable medium {12} |
| 405 | DF | .~> Movable prefilt distributor |
| 406 | DF | .~> Vacuumized filtrate receiver |
| 407 | DF | .~> With residue removing means or agitation of liquid {3} |
| 416.1 | DF | .~> With pump, gas pressure, or suction source {4} |
| 417 | DF | .~> Alternating oppositely opening liquid distributors |
| 418 | DF | .~> With flow controller for material being treated {5} |
| 433.1 | DF | .~> Divided filtered, and unfiltered liquid passages {1} |
| 435 | DF | .~> Within flow line or flow line connected close casing {9} |
| 455 | DF | .~> Receptacle and modified spacing surface or support for filter medium |
| 456 | DF | .~> Prefilt flow distributor or diverter |
| 457 | DF | .~> With central pervious tubular receiver {1} |
| 459 | DF | .~> Pipe or plate attached type {1} |
| 464 | DF | .~> Portable receptacle draining type {3} |
| 470 | DF | .~> Handled {1} |
| 472 | DF | .~> Vented |
| 473 | DF | .~> Resting on supporting receiver, e.g., portable {3} |
| 483 | DF | .~> Supported, shaped or superimposed formed mediums {11} |
| 500.1 | DF | .~> Material {6} |