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US 2017/0320169 A1Published application
Coffee Bag Vent
AssigneeLaserSharp FlexPak Services, LLC
InventorKenneth Klann
Life of this patent
Estimating the term…
Abstract
A laser formed vent in packaging material, formed by an interior breach and an exterior breach, which are connected to one another by a channel. The next interior breach an exterior breach are laterally offset from one another, the channel is formed by vaporizing a bubble in an interior layer, for example a foil layer. In one embodiment, the bubble can be crushed, but returns to its original configuration.
Claims13
A method of forming packaging film with an integrally formed vent, comprising:
- producing a laser output at a first location through a first layer of plastic material, to a second layer, of metallized layer foil, which is overlied by a third layer of plastic material,
- creating a second breach in the third layer at a second location laterally offset from said first location;
- said producing creating a breach in the first location and creating a channel in the second layer, only in a specified location which extends from said first breach to said second breach, said channel defining an area which is expanded relative to a size of said second layer at other than said specified location, and forms a bump in said specified location,
- to create a channel as an expanded area between said first breach and said second breach.
1 more element
A method of forming a package, comprising:
- Directing a laser through a first layer of interior material of a plastic that allows laser to pass, to a second layer including a metallized layer foil, which has, on its other side a third layer of exterior material of a plastic that allows laser to pass, Such that said second layer being between first and third layers,
- said first layer having an interior breach at a first location,
- said third layer having an exterior breach at a second location laterally offset from said first location, and
- said directing forming a channel formed in said second layer, in a specified location which extends from said interior breach to said exterior breach, said channel being an area which is expanded form a bump in said first layer and also to form a bump in said third layer in said specified location, to expand a distance between said first and third layers in said specified location,
- said bumps formed by embedded parts of said second layer being embedded into both said first layer and said third layer.
2 more elements
Dependencies are inferred from the claim text.