Abstract: Electromechanical systems using magnetic fields to induce eddy currents and generate lift and thrust are described. A circumferential array of magnet elements which can be employed in the systems are illustrate. when the circumferential array rotates round its axis, it generates a travelling magnetic field moving along its axis. The travelling magnetic field over a conductive substrate induces eddy currents in the conductive substrate, the eddy currents provide an opposing magnetic field to generate magnetic lift and thrust to support and drive the circumferential array.

Abstract: A coffee grinder using a stepper or servo motor in which the amount of ground coffee output is correlated to degrees or increments of burr rotation. By controlling burr rotation a precise amount of coffee is delivered eliminating excess coffee from being ground.

Abstract: A compact, lightweight hitch-coupling tool is designed to lift, move, and align a hitch-head assembly via two or more points/regions of contact with a hitch ball. When a user moves a hitch-head assembly via the hitch-coupling tool of the present invention, the assembly's mass is evenly distributed through the center of the head of the tool allowing a user to easily maneuver large hitch-head assemblies with one hand.

Abstract: A compact, lightweight hitch-coupling tool is designed to lift, move, and align a hitch-head assembly via two or more points/regions of contact with a hitch ball. When a user moves a hitch-head assembly via the hitch-coupling tool of the present invention, the assembly's mass is evenly distributed through the center of the head of the tool allowing a user to easily maneuver large hitch-head assemblies with one hand.