Variable speed, variable motion, electrically operated vibrator

Details Variable speed, variable motion, electrically operated vibrator Variable speed, variable motion, electrically operated vibrator

1987-10-28

1988-09-27

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

74 87, 366127, H02K 7075

Patent

active

047744405

ABSTRACT:
A vibration generator (50) with a magnetically attractable mass (98) is loosely disposed within a substantially cylindrical cavity of a housing (54). An array of electromagnets (60-90) is circumferentially spaced around the housing cavity. The electromagnets (60-90) are sequentially energized in a predetermined sequence to magnetically attract the loosely disposed mass (98) toward an energized electromagnet, thereby causing the magnetically attractable mass (98) to orbit around the array of electromagnets, imparting centrifugal force to the housing (54) which in turn generates vibration energy.

REFERENCES:
patent: 4382199 (1983-05-01), Isaacson
patent: 4632751 (1986-12-01), Johnson et al.
patent: 4728837 (1988-03-01), Bhadra

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