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:
Oct. 17, 1995
Filed:
Jan. 05, 1994
Bernhard Schrader, Essen, DE;
Gunter G Hoffmann, Oberhausen, DE;
alfill Getranketechnik GmbH, Hamburg, DE;
Abstract
Light-transmitting plastic and/or glass bottles are tested at a station where selected portions of their internal surfaces scatter radiation issuing from a beam of monochromatic radiation. The scattered radiation is intercepted and monitored for the generation of signals which denote the presence or absence of impurities on the selected portions of the internal surfaces and/or certain substances in the walls adjacent the selected portions of the internal surfaces of tested bottles. Such signals are processed, and the processed signals are utilized to classify the bottles according to their defects and/or to segregate unsatisfactory bottles from acceptable bottles and/or to segregate glass bottles from plastic bottles and/or to classify satisfactory plastic bottles in accordance with the nature of their plastic materials. The scattered radiation can constitute Raman, Rayleigh and/or fluorescence radiation.