US4589145A — Packaging material and package

Claim 1

Independent Claim 216 words

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.

Claim 2

Dependent Claim 216 words

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.

Claim 3

Dependent Claim 20 words

A package according to claim 1, wherein said web has means for guiding severance or rupture for opening the web.

Claim 4

Dependent Claim 16 words

A package according to claim 2, wherein said guiding means comprises guiding indicia on said web.

Claim 5

Dependent Claim 19 words

A package according to claim 3, including thinning of the material of said web in alignment with said indicia.

Claim 6

Dependent Claim 30 words

A package according to claim 2, wherein said web comprises a fold, and said guiding means extends along lines aligned with one another along opposite portions of said web fold.

Claim 7

Dependent Claim 224 words

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.

Claim 8

Dependent Claim 224 words

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.

Claim 9

Dependent Claim 25 words

Material according to claim 6, wherein said zipper means comprises extruded profiled strips having base surfaces, and means securing said base surfaces to said sheet.

Claim 10

Dependent Claim 22 words

Material according to claim 6, wherein said means for resisting separation comprises spot sealing of said zipper profiles at package length intervals.

Claim 11

Dependent Claim 68 words

Material according to claim 6, wherein said one sheet portion partially separably overlies said panel area, and the other of said sheet portions extends in the plane of said panel area and is adapted to be wrapped over a product article on said panel area and into engagement with said one portion and over the article which has been engaged between said one portion and said panel area.

Claim 12

Dependent Claim 26 words

A wrapped bulky product-enclosing package according to claim 1, wherein said means for resisting separation comprises spot sealing of said zipper profiles at said cross seals.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-05-12	1989-11-11	1990-05-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-05-12	1993-11-11	1994-05-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-05-12	1997-11-11	1998-05-13	$7700.00	Window Closed / Lapsed

Packaging material and package

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