The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 1997
Filed:
Feb. 13, 1995
Satake Corporation, Tokyo, JP;
Abstract
In a color sorting apparatus comprising: a grain guide device); a grain feed device; optical detecting devices including illuminating devices for illuminating the grain, light-receiving sensors for receiving the intensity of light from the illuminated grain and backgrounds; and an ejector device for removing the grain, the illuminating devices comprise first light sources having a spectral energy distribution in a visible light region and second light sources having a spectral energy distribution in a near-infrared region, and the light-receiving sensors comprise a first light-receiving sensor portion having a high sensitivity to light in the visible light region and a second light-receiving sensor portion having a high sensitivity to light in the near-infrared region, so as to detect and remove foreign matter having a different color from the good grain in visible light region as well as to separate and remove other foreign matter having the same color as the good grain or being transparent in near-infrared region with one color sorting apparatus.