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:
Sep. 16, 2003
Filed:
Jul. 27, 2000
Craig Davis, Atlanta, GA (US);
Spencer Minton, Marietta, GA (US);
Eddy Roberts, Douglasville, GA (US);
Ball Corporation, Broomfield, CO (US);
Abstract
A method for inspecting the material distribution of a sequence of stretch blow molded containers or other articles in a continuous production process, by providing injection molded parisons, each parison having at least one indicator, typically two or more indicators, for detecting material distribution at a predetermined position along the axial extent of the parison. Each of the parisons is subjected to a heating stage in the continuous production process, generally by exposure to infrared heating. Each heated parison is then subjected to a blow molding process, which can be a stretch blow molding process, so that each material distribution indicator is transformed to a corresponding position along the axial extent of the blow molded article. A detector is positioned to detect the location of each indicator on each blow molded article from a given mold in the production process. A computation is then made to determine for each blow molded article a material distribution outcome or profile based on the detected locations of each indicator. This information on material distribution is them matched to a prescribed profile for the particular container design and any discrepancy beyond some preset tolerance value is employed to reject the out of tolerance item from the production line, and to modify a step of the manufacturing process such as the infrared heating pattern.