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. 13, 1990
Filed:
Feb. 01, 1989
Thomas M Potteiger, Mableton, GA (US);
The Mead Corporation, Dayton, OH (US);
Abstract
A method is disclosed for testing the integrity of a container of the type which includes a thin walled cup and a flexible lid sealed to the rim of the cup. In accordance with the method a force is applied to an elongated portion of the lid which circumscribes an area which is coaxial with the center of the cup. Since the cup is sealed this application of force causes the circumscribed area to bow outwardly from the cup. The displacement of the bowed portion is then compared to the previously measured displacement for containers known to be of acceptable quality. An apparatus for performing the test has an upper test assembly with a rim which is adapted to be urged against the elongated portion of the lid. A displacement sensor is mounted within the upper test assembly.