Sorting system using narrow-band electromagnetic radiation

Details Sorting system using narrow-band electromagnetic radiation Sorting system using narrow-band electromagnetic radiation

2006-12-22

2010-10-19

Mackey, Patrick (Department: 3653)

Classifying, separating, and assorting solids

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

Condition responsive means controls separating means

C209S577000, C209S579000, C209S580000, C356S237100, C356S402000, C356S429000

Reexamination Certificate

active

07816616

ABSTRACT:
A system for sorting articles includes a detector system having a plurality of narrow bandwidth sources of electromagnetic energy sequentially illuminating articles passing through the detector system, the detector system further including a collector for collecting electromagnetic energy reflected from the articles; a deflector for deflecting selected articles toward an alternative destination; and a control system, operably connected to the collector and the deflector, for actuating the deflector in response to a sensed parameter of the electromagnetic energy collected in the collector.

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Admitted Prior Art: Applicants admit that it is known in the prior art that a laser source having a wavelength encompassing 532 nm can be used to cause red fluorescence which can be detected as an indicator of the presence of lignin.

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