Patent ID: 8814422
Filing Date: 2014-08-26
Classification: B01F

Abstract:
1. A motor assembly with eddy current coupling system, comprising: a basin having a pivot member and containing a material to be agitated; a motor, comprising an eddy current magnet rotor, a drive motor for rotation of said rotor, and one or more eddy current magnets disposed in said rotor; a nonferrous electrically conductive metal mixture element comprising a pivot member receiver which is disposed over said pivot member within the basin and does not come into direct contact with said motor, wherein a slip speed is defined by a difference between a rotational speed of the eddy current magnet rotor and the nonferrous electrically conductive metal mixture element; and a controller operably coupled to said motor; wherein said nonferrous electrically conductive metal mixture element rotates through a non-uniform magnetic field about said pivot member in response to eddy currents generated by the rotation of said eddy current magnet rotor by said motor; wherein torque delivered to the nonferrous electrically conductive metal mixture element depends on the slip speed; and wherein eddy currents sufficient to overcome frictional drag are created, such that the nonferrous electrically conductive metal mixture element rotates within the basin containing the material to be agitated.