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, 2014
Filed:
Aug. 10, 2009
David Lee Carew, St Albans, AU;
Erol Craig Harvey, Ringwood North, AU;
Jasson Lindsay Mills, Preston, AU;
Ramon Glenny Waycott, Donvale, AU;
Richard Leigh Barber, Wantirna, AU;
William Howard Barling, Preston, AU;
David Lee Carew, St Albans, AU;
Erol Craig Harvey, Ringwood North, AU;
Jasson Lindsay Mills, Preston, AU;
Ramon Glenny Waycott, Donvale, AU;
Richard Leigh Barber, Wantirna, AU;
William Howard Barling, Preston, AU;
Amcor Limited, Hawthorn, VIC, AU;
Abstract
A tool for perforating a polymeric film is disclosed having a support substrate and at least one projection extending from the substrate. The projection is multi-sided with side walls that have straight sides that are tapered upwardly and inwardly from the support substrate at an angle theta (θ) that is at least 5°. The angle is measured in relation to imaginary lines extending perpendicularly to the substrate at the locations at which the side walls contact the substrate.