Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1981-04-02
1982-09-21
Spar, Robert J.
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
198757, 318128, 318132, B65G 2724, H02K 3314
Patent
active
043502431
ABSTRACT:
A material dispensing apparatus including drive structure for driving a feeder bowl is disclosed. A control circuit for controlling the drive includes a Hall effect amplitude sensing transducer for monitoring the magnitude of bowl vibrations and a braking circuit for controlling the damping of vibratory motion after the requisite amount of material has been fed from the feeder bowl. The braking circuit selectively reverses the current flow through a drive coil which comprises a portion of the drive circuitry of the apparatus. This current reversal disrupts the rhythm of forced oscillations which feed material from the bowl and causes bowl motion to be damped.
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Automated Packaging Systems, Inc.
Spar Robert J.
Wacyra Edward M.
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