| 摘要 |
A MIXING ARRANGEMENT FOR A CLOSED-TANK MIXING SYSTEM WHICH INCLUDES A TANK (12) DEFINED BY A SIDE WALL (16), A BOTTOM (14) AND A TOP (18), THE TOP INCLUDING AT LEAST ONE OPENING THERETHROUGH,THE ARRANGEMENT COMPRISING A NON-ROTATING ELONGATED ARM (22) EXTENDING THROUGH THE OPENING IN THE TOP OF THE TANK, THE ARM (22) PIVOTED FOR MOVEMENT ABOUT A PIVOT AXIS (26); AN IMPELLER (24) POSITIONED ON THE ARM FOR MOVEMENT THEREWITH AND WITHIN THE TANK, THE IMPELLER MOVING BACK AND FORTH ALONG AN ARCUATE PATH (28) WITHIN THE TANK AS THE ARM PIVOTS BACK AND FORTH ABOUT THE PIVOT AXIS.(FIG 1B)
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