Automatic control device for particle color discriminating appar

Details Automatic control device for particle color discriminating appar Automatic control device for particle color discriminating appar

1979-12-17

1981-02-24

Rolla, Joseph J.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Condition responsive means controls separating means

209639, 209920, B07C 5342

Patent

active

042522404

ABSTRACT:
A particle color discriminating apparatus including a vibration feeder for feeding particles to be discriminated, a shooter for causing the particles from the feeder to flow downwardly, photoelectric detecting means located in the vicinity of a path of flow of the particles in a predetermined locus, an air ejector arranged beneath the photoelectric detecting means and control means for controlling the actuation of the air ejector in accordance with an output signal of the photosensitive detector is provided with an automatic control device operative to control the amount of particles supplied by the vibration feeder in accordance with changes in the proportion of particles distinct in color from the particles of interest in the particles supplied.

REFERENCES:
patent: 3179247 (1965-04-01), Hutter et al.
patent: 3545610 (1970-12-01), Kelly et al.
patent: 3990580 (1976-11-01), Self
patent: 4194634 (1980-03-01), Kelly

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