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:
Oct. 15, 2013
Filed:
Jul. 02, 2010
Kirsten Lykke, Silkeborg, DK;
Peter Hansen, Vejle Ost, DK;
Kirsten Lykke, Silkeborg, DK;
Peter Hansen, Vejle Ost, DK;
Amcor Flexibles Transpac B.V.B.A., Zaventem, BE;
Abstract
A packaging material for forming at least a part of a package for a product releasing gasses comprises a one-way pressure relief valve () including a first inner film (), being provided with at least one inlet opening () therethrough, and a second outer film () covering the at least one inlet opening () and being bonded to the first inner film () to form a channel portion () between the inner and the outer film. The channel portion () communicates with the surroundings of the package through at least one outlet opening () spaced apart from the at least one inlet opening (). The pressure relief valve () further comprises a liquid () provided in the channel portion () and solid spacer means () provided in the channel portion () proximate to the at least one inlet opening (). The outer film () is a soft film having such a flexibility or elasticity that in a tensile test a force of less than 5 N is needed for elongating a test piece thereof having a width of 15 mm by 5%.