US4223789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opening means for a packaging means of flexible material
Assignee: TETRA PACK DEVELOPPEMENT SA
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Filing: 1978-12-21
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Granted: 1980-09-23
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Expires: 1998-12-21
Abstract
Abstract An approximately U-shaped slot is provided in the side wall adjacent the edge line, to form a pouring edge which projects from the edge line and which can be pivoted forwardly into the plane of the upper end wall, wherein the pouring opening and the slot are provided with a plastics sealing means from the inside of the package, the free ends of the U-shaped slot are arranged to extend by a portion into the upper end wall, and the outer cover strip is weld-free almost over the entire pouring edge region.
Inventors
- 👤 Wilhelm Reil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:08
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/06; B65D5/064; B65D5/065; B65D5/42; B65D5/70; B65D5/708
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
In combination, an opening means, and a package made from flexible material, in particular for liquids, having an upper end wall, means defining a pouring opening in the upper end wall adjacent an edge line, and having an openable cover strip which is provided on the outside of the package, characterized in that an approximately U-shaped slot is provided in a side wall adjacent the edge line, to form a pouring edge which projects from the edge line and which can be pivoted forwardly into the plane of the upper end wall, wherein the pouring opening and the slot are provided with a plastics sealing means from the inside of the package, the free ends (11) of the U-shaped slot (10) are arranged to extend by a portion into the upper end wall (1), and the outer cover strip (7) is weld-free almost over the entire pouring edge region (8).
Claim 2
Dependent Claim
150 words
In combination, an opening means, and a package made from flexible material, in particular for liquids, having an upper end wall, means defining a pouring opening in the upper end wall adjacent an edge line, and having an openable cover strip which is provided on the outside of the package, characterized in that an approximately U-shaped slot is provided in a side wall adjacent the edge line, to form a pouring edge which projects from the edge line and which can be pivoted forwardly into the plane of the upper end wall, wherein the pouring opening and the slot are provided with a plastics sealing means from the inside of the package, the free ends (11) of the U-shaped slot (10) are arranged to extend by a portion into the upper end wall (1), and the outer cover strip (7) is weld-free almost over the entire pouring edge region (8).
Claim 3
Dependent Claim
34 words
An opening means according to claim 1 characterised in that the outer cover strip (7) is joined beside the slot (10, 11) to the pouring edge (8) at at least one weld position (33).
Claim 4
Dependent Claim
49 words
An opening means according to claim 1 or claim 2 characterised in that the outer cover strip (7) is welded by its end which is remote from the pouring edge (8) in a seal seam (30, 31) which is approximately in the middle of the upper end wall (1).
Claim 5
Dependent Claim
65 words
An opening means according to claim 1 or 2 characterised in that the plastics sealing strip (12) which is sealed on to the inside of the packaging means has regions (36, 37, 38) which are weld-free at the right and left sides of the end (35) of the pouring opening (6) which is towards the pouring edge (8), and around the U-shaped slot (10, 11).
Claim 6
Dependent Claim
50 words
An opening means according to claim 1 or 2 characterised in that the outer cover strip (7) is sealed on to the side wall (2) which is adjacent the edge line (9) and/or a triangular flap (5) which adjoins the edge line (9), at at least one weld position (13).
References Cited (Backward Citations)
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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) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |