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. 20, 2021
Filed:
May. 13, 2016
Applicant:
Crown Packaging Technology, Inc., Alsip, IL (US);
Inventor:
Christopher Paul Ramsey, Oxfordshire, GB;
Assignee:
Crown Packaging Technology, Inc., Alsip, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 3/407 (2006.01); B41M 5/28 (2006.01); B65D 17/28 (2006.01);
U.S. Cl.
CPC ...
B41M 5/28 (2013.01); B65D 17/4012 (2018.01); B65D 2203/06 (2013.01);
Abstract
A method for forming a Data Matrix Code or like two dimensional code on a beverage can tab uses a laser having a focal ratio of between 40 and 70 to produce spots having an average diameter of between 200 and 400 microns. The code is smaller than 6 mm by 6 mm, at least 12 modules by 12 modules, and smaller than 21 modules by 21 modules, thereby providing sufficient quantity of unique codes for use with commercial beverage can quantities. Preferably each module is formed by one laser spot. Alternatively, nine spots may be used to form a module.