Power and free roller conveyor

Details Power and free roller conveyor Power and free roller conveyor

1986-11-12

1988-11-01

Spar, Robert J.

Conveyors: power-driven

Conveyor section

Live roll

198619, 310 13, 310166, B65G 1306

Patent

active

047812869

ABSTRACT:
A power and free roller conveyor has a plurality of spaced rollers defining a conveyor path and to each of which is fixed a drive that comprises the secondary of a linear induction motor. The primary of the linear induction motor is positioned adjacent the drivers to enable an interaction of magnetic flux and current resulting from the propagation of a magnetic wave along the primary to cause the drivers and the rollers to rotate. The speed, torque, and direction of rotation of the rollers can be controlled by a voltage and frequency control unit.

REFERENCES:
patent: 1716448 (1929-06-01), Langsdorf
patent: 2684753 (1954-07-01), Kolbe et al.
patent: 3135879 (1964-06-01), Baumann
patent: 3426887 (1969-02-01), Ward et al.
patent: 3549966 (1970-12-01), Wilson
patent: 3904898 (1975-09-01), Mailfert
patent: 3904899 (1975-09-01), Malfert
patent: 3988658 (1976-10-01), Meinke et al.
Cory, Stanley A., "The Nature of Linear Induction Motors", Aug. 23, 1984.

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