Electromagnetic valve and demagnetizing circuit

Details Electromagnetic valve and demagnetizing circuit Electromagnetic valve and demagnetizing circuit

1995-10-12

1998-11-24

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

With conveying means to supply successive receivers

141172, 141192, 141DIG1, 137827, 25112901, B65B 104

Patent

active

058394850

ABSTRACT:
A method and apparatus for filling a container with a magnetic material using an electromagnetic valve and a demagnetizing circuit to control the flow and properties of the material. Initially an empty container is placed under a fill tube through which the material will be supplied to the container. In the filling process an auger located inside of the fill tube rotates to move the material through the fill tube. When the container is filled, the auger stops rotating and the electromagnetic valve is actuated. The electromagnetic valve supplies a magnetic field which holds the material particles in place, plugging the fill tube with the material. The filled container is removed from the fill tube and an empty container is put in its place. When the electromagnetic valve is switched off, a demagnetizing circuit is activated. After the material particles are demagnetized the auger is switched on and the material flows again to fill the container.

REFERENCES:
patent: 3955613 (1976-05-01), Lund
patent: 4655237 (1987-04-01), Gloor et al.
patent: 4932355 (1990-06-01), Neufeld
patent: 4987951 (1991-01-01), Dietrich et al.
patent: 5095338 (1992-03-01), Hayes, Jr. et al.
patent: 5337794 (1994-08-01), Nishiyama et al.
patent: 5438396 (1995-08-01), Mawdesley

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