US 4,589,145 AGranted

Packaging material and package

AssigneeSignode Corporation

InventorsDonald L. Van Erden, Steven Ausnit

Life of this patent

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Abstract

A method of and apparatus for packaging a blocky product such as cheese, into a wrapped envelope package, with material especially adapted for said packaging and wherein a bottom face of the product article is engaged on a panel area of the wrapper sheet which sheet has extended portions that are wrapped about the article and sealed across a top face of the article, with one of the portions of the wrapper sheet having a reclosable zipper and a web portion alongside said zipper which is adapted to be severed or ruptured to provide a mouth opening for access to the article within the package and the mouth opening being reclosable by the enclosed zipper. The zipper may be provided with structure to prevent its being pulled open during the wrapping and sealing of the wrapper about the article. The web portion may have guidance for severing or rupturing the same when access is desired into the package.

Claims10

Dependent claims

In a wrapped bulky product-enclosing package formed from a single sheet or wrapper and having a face panel extending between opposite sides and end edges of the package, said sheet material being folded from opposite sides of the face panel into tubular envelope shape and with longitudinal margins of the sheet material sealed into a seam opposite said face panel and extending between said end edges of the envelope, and cross seals at said opposite end edges of the envelope, the improvement comprising:

zipper means comprising reclosable separable fastener profiles within one side fold of the package extending between said cross seals and in parallel relation to said seans;
said zipper means being enclosed within the package and maintaining said envelope snugged against the wrapped bulky product;
a pilfer-proof web extending between said cross seals and projecting outwardly from and along said fastener profiles, so that the envelope remains fully sealed until said web is ruptured to provide a mouth opening into the package and which is adapted to be reclosed by closing said zipper means;
said zipper means comprising profiled resiliently flexible separable zipper strips having the profiles in closed zipper relation alongside said pilfer-proof web fold;
and means for resisting separation of said zipper profiles during a product wrapping operation and in the package.

2 more elements

Material especially adapted for packaging in a form, fill and seal machine a blocky product such as cheese having opposite faces and edges between said faces, comprising:

a wrapper sheet having a panel area for engagement with a face of said product;
said sheet having portions which extend beyond said panel area and which are adapted to be wrapped into an envelope about said product by bringing said portions up along said product edges and into overlying relation on said top face of said product;
free margins of the wrapper sheet portions being adapted to be secured into a seam over said top face of said product;
said wrapper sheet being dimensioned to provide for cross seals at the ends of the envelope;
reclosable zipper means extending lengthwise on and along one of said sheet portions and maintaining a fold of said one sheet portion closed;
said fold having a pilfer-proof web along said zipper means and adapted to be severed or ruptured to provide a package mouth opening for access to the product in the envelope, and the mouth opening being reclosable by means of said zipper means;
said zipper means comprising profiled resiliently flexible separable zipper strips having the profiles in closed zipper relation alongside said web fold;
and means for resisting separation of said zipper profiles during a product wrapping operation.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/547,392Filed 31 Oct 1983
Granted: 13 May 1986
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B65D 85/76
For edible or potable liquids, semiliquids, or plastic or pasty materials: for cheese
B65B 9/067
Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or…:…
B65B 25/068
Packaging slices or specially-shaped pieces of meat, cheese, or other plastic or tacky products: of cheese
B65B 31/04
Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers: evacuating,…