Electromagnetic vibratory feeder with rare earth magnet

Details Electromagnetic vibratory feeder with rare earth magnet Electromagnetic vibratory feeder with rare earth magnet

1996-11-29

1998-10-13

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 85, 310 86, 310 89, 198609, 198769, H02K 500

Patent

active

058216570

ABSTRACT:
A vibratory feeder for feeding low density powered material having a tray, a base and a motor supporting the tray on the base. The motor includes an electromagnet having an AC coil supported on an intermediate leg between the outer legs and an armature having a permanent magnet and two pole plates. The pole plates being disposed in the spaces between the outer legs and the intermediate leg. A rare earth magnet is supported between the pole plates. Spaces between the electromagnet legs and the pole plates providing for a stroke of about 0.2 inch at a frequency of 30 Hertz and a tuning spring connecting the motor to the tray. The tuning spring being adjustable to change the deflection of the tray relative to the motor.

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patent: 5313061 (1994-05-01), Drew et al.
patent: 5525842 (1996-06-01), Leininger

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