Title:
FOOD WASTE DISPOSER HAVING VARIABLE SPEED MOTOR AND METHODS OF OPERATING SAME
Document Type and Number:
WIPO Patent Application WO2002043869
Kind Code:
B1
Abstract:
The present invention provides for a food waste disposer having a food conveying section (102), a grinding section (104), a motor section (106) and a controller (220). The motor section comprises a switched reluctance motor having a rotor and a stator. 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 (126) and the portion of the grinding mechanism mounted thereon. 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 a soft start mode, optimized grinding mode, idle more, rinse mode, and an anti-jamming mode.
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Inventors:
STRUTZ WILLIAM A
BERGER THOMAS R
ANDERSON SCOTT W
BERGER THOMAS R
ANDERSON SCOTT W
Application Number:
PCT/US2001/044609
Publication Date:
November 21, 2002
Filing Date:
November 28, 2001
Export Citation:
Assignee:
EMERSON ELECTRIC CO (US)
International Classes:
B02C18/24; E03C1/266; B02C18/00; (IPC1-7): B02C23/36
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