Patent ID: 9352893
Filing Date: 2016-05-31
CPC Classification: B65B,B65D

Claim Text:
1. Self-venting package for packing a food preparation and warming it up comprising: at least one flexible film forming a first wall comprising a sealant layer and a support layer, said flexible film being sealed by a peripheral seal onto a second wall or on itself, thereby forming a main enclosure confining the food preparation; and a rupturable seal isolating a venting hole from said main enclosure, said rupturable seal being arranged for opening, in use, a path to the venting hole upon internal pressure increase in said main enclosure, characterized in that a specific region of the rupturable seal is weakened by means of a welded area with a reduced sealant layer thickness, said welded area guiding, in use, the rupture of said rupturable seal to the venting hole, wherein the thickness of the sealant layer material remaining in the welded line represents less than 50% of the thickness of the sealant layer material in the rest of the rupturable seal.