Electronic vibratory feed bowl driver

Details Electronic vibratory feed bowl driver Electronic vibratory feed bowl driver

1978-10-02

1980-08-05

Rowland, James L.

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

198751, 198762, B65G 2732, B65G 4308, H02K 3300

Patent

active

042164168

ABSTRACT:
A vibratory feed bowl driver having sensor for providing a signal responsive to the frequency and amplitude of vibration of a vibratory (parts) feeder and a driver circuit arrangement.
The driver circuit arrangement is responsive to the output signal of the sensor for providing to the bowl's driver coil a variable width drive pulse at the optimum point in the bowl's mechanical cycle to maintain a desired amplitude of bowl vibration at the varying resonant frequencies of the bowl with loading.

REFERENCES:
patent: 2285434 (1942-06-01), Hittson
patent: 2885617 (1959-05-01), Kast et al.
patent: 2935672 (1960-05-01), Ross
patent: 3331239 (1967-07-01), Larsen et al.
patent: 3826993 (1974-07-01), White
patent: 3834534 (1974-09-01), Peterson et al.
patent: 4049997 (1977-09-01), McGhee
patent: 4101816 (1978-07-01), Shepter

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