| 165 / | HD | HEAT EXCHANGE |
|
| DIG 135 | DD | MOVABLE HEAT EXCHANGER {4} |
| DIG 139 |  | .~ Fully rotatable {5} |
| DIG 140 | DD | .~.~> Rotating heat exchanger having rotating flow confining structures or chambers for two separate heat exchange fluids {2} |
| DIG 145 | DD | .~.~> Radially extending hollow arm on rotating shaft traverses furnance shelf (e.g., rabble arm, etc.) {1} |
| DIG 147 | DD | .~.~> Fluid impeller or material advancer {2} |
| DIG 152 | DD | .~.~> Rotating agitator {2} |
| DIG 156 | DD | .~.~> Hollow cylindrical member (e.g., drum, etc.) {3} |