Patent ID: 9073091
Filing Date: 2015-07-07
Classification: A24B,B07C,C10L,C10N,G01N

Abstract:
1. A system for detecting oil contaminated product and foreign matter within a product stream, comprising: (a) a first conveying means for delivering a product stream; (b) a first detection apparatus for detecting oil contaminated product, said first detection apparatus positioned proximate the product stream, said first detection apparatus including a high intensity infrared light source directed at the product stream; and a high speed NIR spectrometer sensor tuned to detect an emitted signal from a taggant disposed in the oil of the oil contaminated product; (c) a second detection apparatus for detecting foreign matter within a product stream, said second detection apparatus positioned proximate the product stream, said second detection apparatus including a light source for illuminating the product stream and a detector for detecting light reflected from the product stream; and (d) a controller for determining whether the product stream contains oil contaminated product or foreign matter by monitoring signals obtained from said first detection apparatus and said second detection apparatus.