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:
Apr. 01, 1986
Filed:
Apr. 30, 1984
John W Miller, Toledo, OH (US);
Owens-Illinois, Inc., Toledo, OH (US);
Abstract
A method and apparatus for optically inspecting and sorting transparent containers such as glass containers having defects in the container sidewalls, and for distinguishing unacceptable major refractive defects and opaque defects from each other and from commercially acceptable minor refractive defects. First and second sources of diffused illumination having differing source widths are sequentially directed onto a container while the container is rotated about its central axis for at least one revolution during each illumination. A camera which includes a plurality of light sensitive elements disposed in a linear array parallel to the axis of container rotation is positioned to receive light energy transmitted through the container sidewall. Electronics monitors the camera light elements during each revolution of the container, identifies defects as a function of differences in light transmitted through the container in each of the first and second illuminations, and generates a reject signal to sort defective containers from otherwise commercially acceptable containers. A conveyor sequentially presents containers for inspection and includes separate selectable exit paths for acceptable and unacceptable containers.