Speed and mode control for a blender
US5347205A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 1992 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Sep 11, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/936
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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 m…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.