Vibratory apparatus with electromagnet control system

Details Vibratory apparatus with electromagnet control system Vibratory apparatus with electromagnet control system

1975-10-29

1977-11-22

Whitehead, Harold D.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

B24B 3106

Patent

active

040589358

ABSTRACT:
An elongated tub-like container is supported for vibration by a set of springs mounted on a frame, and a plurality of sets of opposing electromagnets are positioned on opposite sides of corresponding armatures connected to the container for vibrating the container. A regulator is connected to vary the electric power supplied to only one set or a portion of the electromagnets while the remaining electromagnets are either energized or not energized depending on the level of power required for vibrating the container. In the embodiment illustrated with three sets of opposing electromagnets, the center set of electromagnets is controlled by a voltage regulator, and the outer sets of electromagnets are selectively energized to provide for obtaining any desired power between zero and the maximum in three stages with a voltage regulator of minimum size.

REFERENCES:
patent: 1779454 (1930-10-01), Traylor
patent: 3413764 (1968-12-01), Kunkle
patent: 3456395 (1969-07-01), Parrella
patent: 3643384 (1972-02-01), Isaacson

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