Patent US5330269A successfully refreshed from Google Patents.
US5330269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package
Assignee: Toyo Aluminum KK
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Filing: 1992-11-06
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Granted: 1994-07-19
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Expires: 2012-11-06
Abstract
Abstract A packaging pouch having a laminate of easily peelable tapes heat-bonded to the package body where an opening of the package is to be formed. The laminate has outer heat-bonding layers heat-fused to heat-sealing layers of the package body. The bonding strength between the heat-bonding layers are such that they can be peeled from each other by hand, The laminate may be formed by co-extruding synthetic resins or by heat-bonding, The laminate may protrude into the package body from where the laminate is thermally bonded to the package body,
Inventors
- 👤 Mamoru Kamada
- 👤 Masaei Ibi
- 👤 Tomonobu Sekiguchi
- 👤 Masashi Yamamoto
- 👤 Noboru Andoh
- 👤 Kenichi Itakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:38
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5855; B65D81/00; B65D33/00; B65D33/16; B65D33/25; B65D33/2508; B65D33/2516; B65D33/2525; B65D33/2533
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
141 words
A heat-sealed package comprising: a package body forming an enclosure and having a heat-sealing layer at an openable end of the package; and a laminate thermally fused to said package body at said openable end of the package, said laminate comprising outer layers each thermally fused to respective portions of the heat-sealing layer of said package body, and a middle layer interposed between said outer layers, said middle layer being bonded to said outer layers, said middle layer comprising a pattern of resin coating one of said outer layers, and adhesive covering said resin, said resin having a lower bonding strength with said one of said outer layers than a bonding strength of said adhesive with the layer contacted by the adhesive, such that said middle layer is easily peelable to create an opening at said openable end of the package.
Claim 2
Dependent Claim
141 words
A heat-sealed package comprising: a package body forming an enclosure and having a heat-sealing layer at an openable end of the package; and a laminate thermally fused to said package body at said openable end of the package, said laminate comprising outer layers each thermally fused to respective portions of the heat-sealing layer of said package body, and a middle layer interposed between said outer layers, said middle layer being bonded to said outer layers, said middle layer comprising a pattern of resin coating one of said outer layers, and adhesive covering said resin, said resin having a lower bonding strength with said one of said outer layers than a bonding strength of said adhesive with the layer contacted by the adhesive, such that said middle layer is easily peelable to create an opening at said openable end of the package.
Claim 3
Dependent Claim
18 words
A package as claimed in claim 1, wherein said laminate comprises a plurality of films of coextruded resin.
Claim 4
Dependent Claim
17 words
A package as claimed in claim 1, wherein the layers of said laminate are thermally fused together.
Claim 5
Dependent Claim
41 words
A package as claimed in claim 1, wherein said laminate has an end extending into the enclosure formed by said package body from a terminus of a portion of the package at which said laminate is bonded to said package body.
Claim 6
Dependent Claim
49 words
A package as claimed in claim 4, wherein said outer layers are contiguous with one another at the end of the laminate located within the enclosure formed by said package body so as to cover a portion of said middle layer otherwise exposed to the interior of the enclosure.
Claim 7
Dependent Claim
44 words
A package as claimed in claim 1, and further comprising a fastener extending parallel to said laminate at the openable end of the package, said fastener constituting a closure of the package and being spaced inwardly of said laminate with respect to said enclosure.
Claim 8
Dependent Claim
44 words
A package as claimed in claim 1, and further comprising a fastener extending parallel to said laminate at the openable end of the package, said fastener constituting a closure of the package and being spaced outwardly of said laminate with respect to said enclosure.
Claim 9
Dependent Claim
144 words
A heat-sealed package comprising: a package body forming an enclosure and having a heat-sealing layer at an openable end of the package; and a laminate thermally fused to said package body at said openable end of the package, said laminate comprising outer layers each thermally fused to respective portions of the heat-sealing layer of said package body, and a middle layer interposed between said outer layers, said middle layer being bonded to said outer layers, said middle layer comprising a pattern of resin coating one of said outer layers, and pressure-sensitive adhesive covering said resin, said resin having a lower bonding strength with said one of said outer layers than a bonding strength of said pressure-sensitive adhesive with the layer contacted by the pressure-sensitive adhesive, such that said middle layer is easily peelable to create an opening at said openable end of the package.
Claim 10
Dependent Claim
144 words
A heat-sealed package comprising: a package body forming an enclosure and having a heat-sealing layer at an openable end of the package; and a laminate thermally fused to said package body at said openable end of the package, said laminate comprising outer layers each thermally fused to respective portions of the heat-sealing layer of said package body, and a middle layer interposed between said outer layers, said middle layer being bonded to said outer layers, said middle layer comprising a pattern of resin coating one of said outer layers, and pressure-sensitive adhesive covering said resin, said resin having a lower bonding strength with said one of said outer layers than a bonding strength of said pressure-sensitive adhesive with the layer contacted by the pressure-sensitive adhesive, such that said middle layer is easily peelable to create an opening at said openable end of the package.
Claim 11
Dependent Claim
41 words
A package as claimed in claim 8, wherein said laminate has an end extending into the enclosure formed by said package body from a terminus of a portion of the package at which said laminate is bonded to said package body.
Claim 12
Dependent Claim
49 words
A package as claimed in claim 9, wherein said outer layers are contiguous with one another at the end of the laminate located within the enclosure formed by said package body so as to cover a portion of said middle layer otherwise exposed to the interior of the enclosure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-18 | 1998-01-17 | 1998-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-18 | 2002-01-17 | 2002-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-18 | 2006-01-17 | 2006-07-19 | $7700.00 | Window Closed / Lapsed |