Linear electromagnetic vibrator

Details Linear electromagnetic vibrator Linear electromagnetic vibrator

1979-03-20

1983-07-26

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Reciprocating

310 24, 310 30, 310 35, H02K 3300

Patent

active

043956491

ABSTRACT:
An electrically driven linear vibrator has swing drive for vibrating troughs, jarring tables or the like comprises a stator with an exciter winding, an armature guided for linear movement in a direction transverse to the field produced by the stator and a pair of oppositely acting return springs forming together a swing drive, the vibration of which may be used to drive a device connected to the vibrator. The return springs may be constituted by metal springs, gas springs or a combination of both. The swing drive may be constructed as single-acting or double-acting drives. A diode may be connected with the electrical conductors leading to exciter winding so that at a line frequency of 50 Hz, an oscillation frequency of 100 Hz, 50 Hz or 25 Hz may be obtained. The vibrator may also be provided with a piston blower for cooling the windings of the stator.

REFERENCES:
patent: 2003647 (1935-06-01), Dillstrom
patent: 3119940 (1964-01-01), Pettit et al.
patent: 3130334 (1964-04-01), Nowak
patent: 3259769 (1966-07-01), Stott
patent: 3336488 (1967-08-01), Scott
patent: 3431477 (1969-03-01), Marinescu
patent: 3500079 (1970-03-01), Barthalon
patent: 3542495 (1970-11-01), Barthalon
patent: 4179630 (1979-12-01), Stuber

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