| 239 / | HD | FLUID SPRINKLING, SPRAYING, AND DIFFUSING |
| 461 | DF | FLOW DEFLECTING OR ROTATION CONTROLLING MEANS {9} |
| 463 | DF | .~ Fluid rotation inducing means upstream of outlet {12} |
| 468 | DF | .~.~ Whirl chamber transversely offset to single inflow path (i.e., tangential inflow) {2} |
| 469 | DF | .~.~.~ Having a central post-like member {1} |
| 470 | | .~.~.~.~ And flow passage in post |