Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1992-09-11
1994-09-13
Shoop, Jr., William M.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318772, 388904, 3889075, 388936, 366206, 366601, H02P 528
Patent
active
053472055
ABSTRACT:
A blender is provided with a microprocessor for controlling energization of the blender drive motor, and a plurality of manually actuated switches for controlling the stepping of the microprocessor through a program which determines the mode and pattern of energization of the drive motor. There are N speed range selection switches, M speed selection switches and a pulse mode switch. Depending on the sequence in which these switches are actuated, the microprocessor controls the drive motor in a manual continuous mode at any one of N.times.M speeds, a manual pulse mode at any one of N.times.M speeds or an autopulse mode with any one of three patterns of energization. In the first pattern of energization the motor is energized to run at one of M constant speeds during intervals T1 which are separated by intervals T2 during which the motor is not energized. In a second pattern of energization the motor starts at one of M speeds, the energization being gradually decreased over each interval T1 so that the motor speed decreases. In a third pattern of energization, the motor is initially energized to run at one of M speeds with the energization increasing over each interval T1. Any mode may be programmed for one of M run intervals. All modes and patterns of motor energization are controlled by only M+N+1 switches (excluding ON/OFF switches) and the sequence in which the switches are actuated.
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Pamphlet "2001 Electronic Blender" Published 1978 by Hamilton Beach Division of Scovill, front cover p. 1, pp. 2-13 and back cover.
Hamilton Beach Div. Schematic Diagram 716 999 0110 Last Revised Nov. 5, 1982, 2 sheets.
Advertisement for Soft Touch Blendor, published by Waring Products Division in 1980.
Advertisement: "A Fresh New Spin on Blender Technology", published by Sunbeam-Oster in 1992.
4 Sheets of Artwork for a "Philips 2001 Computerized Blender" Marketed about 1980.
Dybvig Roger S.
Hamilton Beach, Proctor-Silex, Inc.
Martin David
Shoop Jr. William M.
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