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:
Jan. 24, 1989
Filed:
Mar. 10, 1987
Jos P Mallant, Hamburg, DE;
Justus Technik GmbH Industrie-Anlagen, Hamburg, DE;
Abstract
Method and apparatus for controlling a color sorting machine which sorts particulate products based on a color difference between the product and a background. A photoelectric cell receives light reflected from the product and provides an output signal to a microprocessor. The microprocessor uses photoelectric cell output signals of known good products to establish a range of predetermined acceptance values. If the detected signal falls outside the predetermined range, it is determined that the product is defective and an eject signal is provided to an ejector which ejects the bad product from the machine. Outside of the microprocessor, a comparator first compares the photoelectric output signals with the predetermined range of values established by the microprocessor. If the comparator detects a defective product, it provides an eject signal to the microprocessor which then commands the ejector to eject the defective product.