Conveyor system utilizing shielded reader units

Details Conveyor system utilizing shielded reader units Conveyor system utilizing shielded reader units

1975-07-18

1976-11-02

Kunin, Stephen G.

Railways

Selective delivery

235 6111F, 246 2S, B61J 304

Patent

active

039889912

ABSTRACT:
A conveyor system in which code devices with reflectors mounted on trucks selectively coact with optoelectronic reader units to cause spur line switches to selectively divert the trucks from a main line to particular spur lines is disclosed. Each reader unit has an energy beam emitter and a beam sensor both covered by a barrier surface. The emitter casts a beam upwardly at an angle to the vertical through a cover opening so that the reflector of a particular code device will reflect the beam through the opening to the sensor which thereupon initiates actuation of a spur line switch.

REFERENCES:
patent: 3117754 (1964-01-01), Morganstern
patent: 3174439 (1965-03-01), Edgar et al.
patent: 3238358 (1966-03-01), Read
patent: 3304412 (1967-02-01), Rabinow
patent: 3316392 (1967-04-01), Bailey et al.
patent: 3526192 (1970-09-01), Parshall
patent: 3532059 (1970-10-01), Frantz
patent: 3559584 (1971-02-01), Frantz et al.

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