Food waste disposer having a variable speed motor

Details Food waste disposer having a variable speed motor Food waste disposer having a variable speed motor

2005-02-15

2005-02-15

Tolan, Ed (Department: 3725)

Solid material comminution or disintegration

Apparatus

Including means applying fluid to material

C241S033000, C241S036000

Reexamination Certificate

active

06854673

ABSTRACT:
The present invention provides a food waste disposer having an upper food conveying section, a motor section, a central grinding section and a controller. The upper food conveying section includes a housing forming an inlet to receive food waste. The motor section includes a switched reluctance machine having a rotor and a stator. The rotor imparts rotational movement to a rotatable shaft. The central grinding section is disposed between the food conveying section and the motor section. The food conveying section conveys food waste to the grinding section. The grinding section includes a grinding mechanism where a portion of the grinding mechanism is mounted to the rotatable shaft. The controller is electrically connected to the stator to control the switched reluctance machine. The controller is capable of directing rotational movement to the rotatable shaft and the portion of the grinding mechanism mounted to the rotatable shaft. The controller is further capable of maintaining the rotational movement of the rotatable shaft at more than one rotational speed. The present invention also includes methods of operating a variable speed motor in different operational modes such as idle mode and anti-jamming mode.

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