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:
Mar. 23, 2010
Filed:
Aug. 06, 2007
Günter Felk, Ulm-Einsingen, DE;
Jörg Riekenbrauck, Schwendi, DE;
Hans-werner Bongers, Laupheim, DE;
Uhlmann Pac-Systeme GmbH & Co. KG, Laupheim, DE;
Abstract
In a sealing machine a pair of juxtaposed foils are sealed together at web regions having oppositely directed outer surfaces between a pair of dies, at least one of which is formed with an array of bumps that taper outwardly toward a respective one of the outer surfaces. The bumps press into the one outer surface and form therein permanent cavities of a predetermined imprint depth so as to bond together the foils at the web region. A quality of seal is determined by measuring after formation of the cavities surface features of the cavities at a level of the one outer surface of the respective foil, and calculating based on the measured surface features an imprint depth of the cavity.