US4834245A
Expired / Lapsed
US
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Pouch having tearing zone for taking out content packed therein
Assignee: Hosokawa Yoko KK
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Filing: 1988-08-05
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Granted: 1989-05-30
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Expires: 2008-08-05
Abstract
Abstract A pouch for containing therein a content including front and rear pouch bodies formed of a laminated film, and heat-sealed portions at confronting side edge portions of the front and rear pouch bodies for providing a fluid tight structure of the pouch. The pouch is characterized in that: the laminate film includes uniaxial oriented plastic film layer provided with molecular orientation in one direction, and at least two notches are formed at positions close to each other at least one of the heat-sealed portions for defining a leading end portion of a tearing zone. The notches are directed in a tearing direction parallel with a direction of the molecular orientation of the laminated film.
Inventors
- 👤 Toshinari Ohga
- 👤 Raizo Kuge
- 👤 Susumu Niwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:23
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/03; B32B15/00; B32B15/04; B32B15/08; B32B15/085; B32B15/20; B32B27/00; B32B27/32; B32B38/00; B32B38/0004; B65; B65D; B65D75/00; B65D75/04; B65D75/20; B65D75/52; B65D75/58; B65D75/5827; B65D75/5833; B65D75/5844; B32B2307/00; B32B2307/30; B32B2307/31; B32B2307/50; B32B2307/514; B32B2307/518; B32B2311/00; B32B2311/24; B32B2323/00; B32B2323/10; B32B2439/00; B32B2439/40; Y; Y10; Y10S; Y10S383/00; Y10S383/908
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A pouch for containing therein a content, including front and rear pouch bodies formed of a laminated film, and heat-sealed portions at confronting side edge portions of said front and rear pouch bodies for providing a fluid tight structure of said pouch, characterized in that: said laminate film is provided with molecular orientation in one direction, and at least two notches are formed at positions close to each other at at least one of said heat-sealed portions for defining a leading end portion of a tearing zone, said notches being directed in a tearing direction parallel with a direction of said molecular orientation of said laminated film, said laminated film comprising a sub-biaxial oriented polypropylene film layer serving as an outer surface of said pouch, an aluminum film layer and a heat-sealable polypropylene film layer serving as an internal surface of said pouch, molecular orientation of said sub-biaxial oriented polypropylene film layer being parallel with said tearing direction.
Claim 2
Dependent Claim
158 words
A pouch for containing therein a content, including front and rear pouch bodies formed of a laminated film, and heat-sealed portions at confronting side edge portions of said front and rear pouch bodies for providing a fluid tight structure of said pouch, characterized in that: said laminate film is provided with molecular orientation in one direction, and at least two notches are formed at positions close to each other at at least one of said heat-sealed portions for defining a leading end portion of a tearing zone, said notches being directed in a tearing direction parallel with a direction of said molecular orientation of said laminated film, said laminated film comprising a sub-biaxial oriented polypropylene film layer serving as an outer surface of said pouch, an aluminum film layer and a heat-sealable polypropylene film layer serving as an internal surface of said pouch, molecular orientation of said sub-biaxial oriented polypropylene film layer being parallel with said tearing direction.
Claim 3
Dependent Claim
36 words
The pouch as claimed in claim 1, characterized in that said one of heat-sealed portion has non overlapped area along an outer edge line thereof, and said two notches are formed at said non overlapped area.
Claim 4
Dependent Claim
155 words
A pouch for containing therein a content, including front and rear pouch bodies formed of a laminated film, and heat-sealed portions at confronting side edge portions of said front and rear pouch bodies for providing a fluid tight structure of said pouch, characterized in that: said laminate film is provided with molecular orientation in one direction, and at least two notches are formed at positions close to each other at at least one of said heat-sealed portions for defining a leading end portion of a tearing zone, said notches being directed in a tearing direction parallel with a direction of said molecular orientation of said laminated film, said laminated film comprising a uniaxial polyethylene layer serving as an outer surface of said pouch, an aluminum film layer, and a casted polypropylene film layer serving as an inner surface of said pouch, molecular orientation of said uniaxial polyethylene film layer being parallel with said tearing direction.
Claim 5
Dependent Claim
155 words
A pouch for containing therein a content, including front and rear pouch bodies formed of a laminated film, and heat-sealed portions at confronting side edge portions of said front and rear pouch bodies for providing a fluid tight structure of said pouch, characterized in that: said laminate film is provided with molecular orientation in one direction, and at least two notches are formed at positions close to each other at at least one of said heat-sealed portions for defining a leading end portion of a tearing zone, said notches being directed in a tearing direction parallel with a direction of said molecular orientation of said laminated film, said laminated film comprising a uniaxial polyethylene layer serving as an outer surface of said pouch, an aluminum film layer, and a casted polypropylene film layer serving as an inner surface of said pouch, molecular orientation of said uniaxial polyethylene film layer being parallel with said tearing direction.
Claim 6
Dependent Claim
159 words
A pouch for containing therein a content, including front and rear pouch bodies formed of a laminated film, and heat-sealed portions at confronting side edge portions of said front and rear pouch bodies for providing a fluid tight structure of said pouch, characterized in that: said laminate film is provided with molecular orientation in one direction, and at least two notches are formed at positions close to each other at at least one of said heat-sealed portions for defining a leading end portion of a tearing zone, said notches being directed in a tearing direction parallel with a direction of said molecular orientation of said laminated film, said laminated film comprising a casted polypropylene film layer serving as an outer surface of said pouch, an uniaxial oriented polyethylene film layer, and a casted polypropylene film layer serving as an inner surface of said pouch, molecular orientation of said uniaxial oriented polyethylene film layer being parallel with said tearing direction.
Claim 7
Dependent Claim
159 words
A pouch for containing therein a content, including front and rear pouch bodies formed of a laminated film, and heat-sealed portions at confronting side edge portions of said front and rear pouch bodies for providing a fluid tight structure of said pouch, characterized in that: said laminate film is provided with molecular orientation in one direction, and at least two notches are formed at positions close to each other at at least one of said heat-sealed portions for defining a leading end portion of a tearing zone, said notches being directed in a tearing direction parallel with a direction of said molecular orientation of said laminated film, said laminated film comprising a casted polypropylene film layer serving as an outer surface of said pouch, an uniaxial oriented polyethylene film layer, and a casted polypropylene film layer serving as an inner surface of said pouch, molecular orientation of said uniaxial oriented polyethylene film layer being parallel with said tearing direction.
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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) | 1992-05-29 | 1992-11-28 | 1993-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-29 | 1996-11-28 | 1997-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-29 | 2000-11-28 | 2001-05-30 | $7700.00 | Window Closed / Lapsed |