Abstract: A gear box includes a first permanent magnet direct current (PMDC) motor, a first output shaft driven by the first motor in one direction to dispense ice cubes and driven in an opposite direction to dispense crushed ice, a second PMDC motor and a second output shaft driven by the second motor in one direction to dispense shaved ice. The first and the second motors operate independently of each other. They are also aligned parallel to each other. The second motor operates at a different speed and torque than the first motor. Cross-sections of the first and second output shafts are hexagon-shaped. The longitudinal axis of the first output shaft is parallel to the longitudinal axis of the second output shaft. Thus, this compact miniature gear motor box has two output shafts capable of performing more that two functions.

Abstract: A peristaltic pump for dispensing liquid includes a front casing portion, a rear casing snap-fitted together with the front casing portion, a rotor confined between the front casing portion and the rear casing portion, a plurality of rollers mounted in the rotor, and a flexible tube compressed at equally spaced intervals by the plurality of rollers. The pump is resistant to constant torques and vibrations caused by a machine to which it is attached so that the pump does not become loose and fall apart. In a first embodiment for low torque and low vibration operations, the pump is screwless. In a second embodiment for high torque and high vibration operations, two screws secure a synchronous gear motor to the pump.

Abstract: A three-wire reversing system for a permanent magnet, reversible, brush-type, direct current (DC) motor has a three-wire alternating current (AC) input voltage source which supplies electrical current to at least one capacitive element. This capacitive element and the DC motor replace a permanent split capacitor (PSC) and an AC motor in a prior art three-wire reversing system.