Automatic vibrator control

Details Automatic vibrator control Automatic vibrator control

1991-11-22

1992-10-27

Dayoan, D. Glenn

Conveyors: power-driven

Conveyor section

Reciprocating conveying surface

198769, 198762, B65G 2500

Patent

active

051581701

ABSTRACT:
A vibratory apparatus including a vibratory feedbowl, a circuit for providing impulses, and a manually adjustable controller connected to the impulse circuit for providing a controlled conductance path to the impulse circuit to controllably vibrate the feedbowl. An improved controller includes a sensor connected to the vibratory feedbowl for providing a signal proportional to the actual amplitude of the feedbowl. A set point control provides a desired amplitude signal for the feedbowl. An automatic controller connected to the sensor and the set point control provides a control signal proportional to the difference between the desired amplitude and the actual amplitude. An override circuit connecting the automatic controller to the manually adjustable controller provides an override conductance path to the impulse circuit proportional to the control signal to vibrate the feedbowl at approximately the desired amplitude.

REFERENCES:
patent: 3251457 (1966-05-01), Dumbaugh
patent: 3840789 (1974-10-01), Dion
patent: 4168774 (1979-09-01), Musschoot
patent: 4216416 (1980-08-01), Grace
patent: 4331263 (1982-05-01), Brown
patent: 4369398 (1983-01-01), Lowry, Sr.
patent: 4594636 (1986-06-01), Hamer et al.
patent: 4811835 (1989-03-01), Bullivant et al.
patent: 5054606 (1991-10-01), Musschoot
patent: 5074403 (1991-12-01), Myhre

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