Dispenser package
AssigneeAmerican Can Company
InventorGordon H. Beguhn
Life of this patent
Estimating the term…
Abstract
An improved package for dispensing a flowable product is provided. The package has enhanced moisture resistance and is readily opened with one hand. The improvement resides in the use of an imperforate, uniaxially oriented polymeric film as a protective barrier layer over the scored outer layer of a package which comprises a scored rigid sheet member secured to a flexible sheet member forming a pocket for containment of a flowable product. The oriented film is attached over the scored rigid member to protect the contents of the package. The film ruptures when the score ruptures upon bending the scored rigid member toward the pocket to open the package.
Claims14
A dispensing package for a flowable product comprising a flexible top member having at least one layer and secured to a rigid or semi-rigid base member at marginal edge portions to form a pocket, for containment of a flowable product, said base member comprising an outer layer having a cut score area and an imperforate, uniaxially oriented polymeric film attached to the outer surface of the second layer, the imperforate film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, the oriented film being so positioned on said rigid or semi-rigid member that the orientation direction of the film extends substantially parallel to the cut score area, whereby said score area and said imperforate film rupture to open the package upon bending the base member in a direction toward the pocket.
A dispensing package for a flowable product comprising:
- (1) a multilayer flexible top member comprising an outer layer of polyethylene terephthalate copolymer adhered to aluminum foil and an inner heat sealing layer of polyethylene;
- secured to (2) a multilayer rigid or semi-rigid base member secured to said flexible member at marginal edge portions to form a pocket for containment of a flowable product;
- said base member comprising an outer layer of a polymer of acrylonitrile-methylacrylate and butadiene-acrylonitrile, the outer layer having a single, straight, uninterrupted cut pattern extending across its surface, and (3) an imperforate, uniaxially oriented film of high density polyethylene attached to the outer layer of the base member;
- said polyethylene film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, said oriented polyethylene film being so positioned on said base member that the orientation direction of the film extends substantially parallel to the cut pattern, whereby said scored area and said polyethylene film rupture to open the package upon bending the base member in a direction toward the pocket, said oriented film providing moisture barrier properties to said rigid base member.
In a dispensing package for a flowable substance having a relatively rigid or semi-rigid flat side and a flexible arched side secured to one side of said flat side and forming between said flat side and said arched side a pocket for containing a flowable product and wherein the flat side has a cut score area forming an opening when the flat side is bent in a direction toward said pocket, the improvement which comprises an imperforate, uniaxially oriented polymeric film attached to the outer surface of the scored flat side, said film being oriented to the extent that it exhibits a tear strength differential between the orientation direction and the direction perpendicular to the orientation direction, said film being so positioned on said scored flat side that the orientation direction of the film extends substantially parallel to the cut score area;
- said film providing moisture barrier properties and improved strength to said package and rupturing to provide a package opening upon bending the base member in a direction toward the pocket.
Dependencies are inferred from the claim text.