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:
Feb. 07, 1984
Filed:
Sep. 17, 1981
David E Carson, Lawrence, KS (US);
George W Dalke, Overland Park, KS (US);
Carson/Burger/Weekly, Inc., Lawrence, KS (US);
Abstract
Improved apparatus is provided for use in detecting faults, such as cracks, 'flashes,' 'short shots' and 'grease' deposits, during the quality control inspection phase of the production of molded articles, such as cups, glasses, containers, lids or the like, especially those formed by injection molding from plastic material. The apparatus employs optical sensing and electrical signal handling techniques involving sensors for providing electrical signals (or signal controlling parameters) corresponding to the intensity of light transmitted through or/and reflected from an article being inspected, in conjunction with electrical, fault detection circuitry that responds equally well and produces a fault indicating, electrical output of like polarity for greater than threshold magnitude changes in either direction (decrease or increase) in the intensity of the light being sensed. The apparatus includes sensors permitting the detection of faults in either transparent or opaque articles.