Mixing device

Claim 1

A DEVICE FOR MIXING LIQUIDS IN A RECEPTACLE COMPRISING: A TORQUE TUBE HAVING AN OUTER WALL; A SECOND TUBE OPEN AT EACH END HAVING AN INNER WALL OPPOSITE SAID TORQUE TUBE OUTER WALL AND CONCENTRIC TO SAID TORQUE TUBE, TO DEFINE A FIRST FLOW PASSAGE THEREBETWEEN SAID FIRST FLOW PASSAGE BEING CHARACTERIZED BY A SUBSTANTIALLY LARGER INTAKE CROSS SECTIONAL AREA THAN OUTLET CROSS SECTIONAL AREA WHEREBY LIQUIDS ARE DISCHARGED UNDER PRESSURE; A WALL PORTION DISPOSED TRANSVERSELY TO SAID SECOND TUBE, PROXIMATE TO ONE END THEREOF; A THIRD TUBE DISPOSED COAXIALLY ABOUT AND ENCLOSING AT LEAST PART OF SAID SECOND TUBE AND EXTENDING AXIALLY FORWARD OF SAID SECOND TUBE TO ABUT SAID TRANSVERSE WALL IN SEALED RELATIONSHIP THERETO, THE VOLUME BETWEEN THE INNER WALL OF SAID THIRD TUBE AND THE CONFRONTING OUTER WALL OF SAID SECOND TUBE DEFINING A SECOND FLOW PASSAGE CONCENTRIC ABOUT SAID FIRST FLOW PASSAGE AND COMMUNICATING THEREWITH PROXIMATE TO SAID WALL PORTION; A ROTATABLE SHAFT AXIALLY DISPOSED IN SAID TORQUE TUBE; BAFFLE MEMBERS RADIALLY ALIGNED WITH RESPECT TO SAID SHAFT, SAID BAFFLE MEMBERS EXTENDING BETWEEN SAID INNER WALL OF SAID THIRD TUBE AND SAID OUTER WALL OF SAID SECOND TUBE; IMPELLER MEANS CARRIED BY SAID SHAFT WHEREBY ROTATION OF SAID SHAFT, WHEN SAID FIRST TUBE IS INTRODUCED INTO SAID LIQUID, WILL FORCE A PORTION OF SAID LIQUID THROUGH SAID FIRST FLOW PASSAGE AND, IN TURN, THROUGH SAID SECOND FLOW PASSAGE SO AS TO RETURN SAID LIQUID TO SAID RECEPTACLE; AND A BUSHING CHARACTERIZED BY A LOW COEFFICIENT OF FRICTION INTERPOSED BETWEEN SAID SHAFT AND SAID TORQUE TUBE.

Claim 2

A DEVICE FOR MIXING LIQUIDS IN A RECEPTACLE COMPRISING: A TORQUE TUBE HAVING AN OUTER WALL; A SECOND TUBE OPEN AT EACH END HAVING AN INNER WALL OPPOSITE SAID TORQUE TUBE OUTER WALL AND CONCENTRIC TO SAID TORQUE TUBE, TO DEFINE A FIRST FLOW PASSAGE THEREBETWEEN SAID FIRST FLOW PASSAGE BEING CHARACTERIZED BY A SUBSTANTIALLY LARGER INTAKE CROSS SECTIONAL AREA THAN OUTLET CROSS SECTIONAL AREA WHEREBY LIQUIDS ARE DISCHARGED UNDER PRESSURE; A WALL PORTION DISPOSED TRANSVERSELY TO SAID SECOND TUBE, PROXIMATE TO ONE END THEREOF; A THIRD TUBE DISPOSED COAXIALLY ABOUT AND ENCLOSING AT LEAST PART OF SAID SECOND TUBE AND EXTENDING AXIALLY FORWARD OF SAID SECOND TUBE TO ABUT SAID TRANSVERSE WALL IN SEALED RELATIONSHIP THERETO, THE VOLUME BETWEEN THE INNER WALL OF SAID THIRD TUBE AND THE CONFRONTING OUTER WALL OF SAID SECOND TUBE DEFINING A SECOND FLOW PASSAGE CONCENTRIC ABOUT SAID FIRST FLOW PASSAGE AND COMMUNICATING THEREWITH PROXIMATE TO SAID WALL PORTION; A ROTATABLE SHAFT AXIALLY DISPOSED IN SAID TORQUE TUBE; BAFFLE MEMBERS RADIALLY ALIGNED WITH RESPECT TO SAID SHAFT, SAID BAFFLE MEMBERS EXTENDING BETWEEN SAID INNER WALL OF SAID THIRD TUBE AND SAID OUTER WALL OF SAID SECOND TUBE; IMPELLER MEANS CARRIED BY SAID SHAFT WHEREBY ROTATION OF SAID SHAFT, WHEN SAID FIRST TUBE IS INTRODUCED INTO SAID LIQUID, WILL FORCE A PORTION OF SAID LIQUID THROUGH SAID FIRST FLOW PASSAGE AND, IN TURN, THROUGH SAID SECOND FLOW PASSAGE SO AS TO RETURN SAID LIQUID TO SAID RECEPTACLE; AND A BUSHING CHARACTERIZED BY A LOW COEFFICIENT OF FRICTION INTERPOSED BETWEEN SAID SHAFT AND SAID TORQUE TUBE.