Scrubbing torque monitoring and control system

Details Scrubbing torque monitoring and control system Scrubbing torque monitoring and control system

1981-02-18

1983-05-10

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 21D, 318 39, A46B 1302

Patent

active

043823084

ABSTRACT:
An electronic circuit measures the torque of a motor used to drive rotatable brushes, which may be used to clean the surfaces of flat articles, such as printed circuit boards. The circuit measures the torque by determining the average power consumed by the motor. The measured torque provides the operator of the system with an indication as to whether the brushes are spaced for proper impingement upon the article being scrubbed. The invention also comprises a servomechanism which provides for automatic and continuous readjustment of the position of the brushes, relative to the flat articles, in accordance with changing motor load conditions. The invention may be used to regulate the torque of a motor which is used in many other applications.

REFERENCES:
patent: 3662418 (1972-05-01), Kamiya
patent: 3748789 (1973-07-01), Wada
patent: 3795931 (1974-03-01), Martino
patent: 3819991 (1974-06-01), Weigele et al.
patent: 4052648 (1977-10-01), Nola
patent: 4137677 (1979-02-01), Nedreski
patent: 4249113 (1981-02-01), Werner

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