Patent US2805842A successfully refreshed from Google Patents.
US3581972A
Expired / Lapsed
US
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Packaging container with protected overlap seam and method for making same
Assignee: FR Hesser Maschinenfabrik AG
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Filing: 1969-03-04
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Granted: 1971-06-01
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Expires: 1989-03-04
Abstract
Abstract A tubelike packaging container of multilayer material provided with an overlap seam which is protected by a multilayer cover band disposed between the seam margins.
Inventors
- 👤 Norbert Buchner
- 👤 Adolf Vogele
- 👤 Rolf Kohnlein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:19
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/26; B29; B29C; B29C63/00; B29C63/0026; B29C63/0034; B29C63/0039; B29C65/00; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/50; B29C65/5064; B29C65/5071; B29C65/5085; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/135; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/49; B29C66/70; B29C66/72; B29C66/723; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B31; B31B; B31B50/00; B31B50/60; B31B50/64; B31F; B31F5/00; B31F5/06; B31F5/08; B31F5/085; B65D3/00; B65D3/22; B29C65/02; B29C65/10; B29C65/5092; B29C66/71; B29C66/7232; B29C66/72321; B29C66/72327; B29C66/72328; B29L; B29L2009/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
84 words
In a tubelike packaging container composed of a multilayer packaging material having an inwardly and an outwardly facing seam margin in overlapping and spaced relationship to each other; a multilayer cover band having a forward end interposed, at least in part, between said seam margins and an intermediate and rear portion telescoped around the cutting edge of the inwardly facing seam margin, said rear portion of the cover band being folded 180* against itself with the folded portion abutting the inwardly facing seam margin.
Claim 2
Dependent Claim
84 words
In a tubelike packaging container composed of a multilayer packaging material having an inwardly and an outwardly facing seam margin in overlapping and spaced relationship to each other; a multilayer cover band having a forward end interposed, at least in part, between said seam margins and an intermediate and rear portion telescoped around the cutting edge of the inwardly facing seam margin, said rear portion of the cover band being folded 180* against itself with the folded portion abutting the inwardly facing seam margin.
Claim 3
Dependent Claim
32 words
A packaging container according to claim 1, wherein said cover band comprises a carrier foil, and a layer of plastic material weldable to the inwardly facing layer of the outer seam margin.
Claim 4
Dependent Claim
31 words
A packaging container according to claim 1, wherein said cover band comprises a carrier foil, and a layer of plastic material weldable to the outwardly facing layer of the inner seam.
Claim 5
Dependent Claim
25 words
A packaging container according to claim 2, wherein said layer of plastic material is also weldable to the inwardly facing layer of the inner seam.
Claim 6
Dependent Claim
26 words
A packaging container according to claim 2, wherein both sides of the carrier foil of the cover band are covered with a layer of plastic material.
Claim 7
Dependent Claim
21 words
A packaging container according to claim 1, wherein said carrier foil of said cover band is composed of a metallic material.
Claim 8
Dependent Claim
14 words
A packaging container according to claim 6, wherein said metallic material is essentially aluminum.
Claim 9
Dependent Claim
16 words
A packaging container according to claim 5, wherein said carrier foil is composed essentially of aluminum.
Claim 10
Dependent Claim
35 words
A packaging container according to claim 1, wherein each of the two folded legs of the rear portion of the cover band and the forward portion of the latter all have substantially the same width.
Claim 11
Dependent Claim
45 words
A packaging container according to claim 1, wherein the sum of the width of said forward portion and the inwardly folded leg of the rear portion of the cover band along the edges of the latter is less than the width of said intermediate portion.
Claim 12
Dependent Claim
35 words
A packaging container according to claim 1, wherein said forward portion of said cover band is telescoped around the cutting edge of the outer seam margin in U-shaped fashion and is sealed to the latter.
Claim 13
Dependent Claim
32 words
A packaging container according to claim 11, wherein the telescoped part of said forward portion is folded 180* against itself with the folded leg facing the outward face of the outer seam.
Claim 14
Dependent Claim
58 words
A packaging container according to claim 1, wherein the cutting edge of said forward portion is located remote relative to the cutting edge of the outer seam margin, and the inner seam margin is located, in part, coplanar with said forward portion in the area between the terminal edges of the forward portion and said outer seam margin.
Claim 15
Dependent Claim
45 words
A packaging container according to claim 13, wherein intermediate portions of said inner seam margin between the cutting edge thereof and the portion coplanar with the forward portion of the cover band, is arranged askew relative to the two contiguous parts of the seam margin.
Claim 16
Dependent Claim
34 words
A packaging container according to claim 13, wherein the inner face of the inner seam margin is in contact with and sealed to the inner and outer face of the cover band rear portion.
Claim 17
Dependent Claim
26 words
A packaging container according to claim 13, wherein the width of the two legs constituting the folded rear portion of the cover band is significantly unequal.
Claim 18
Dependent Claim
51 words
Method for making a packaging container according to claim 1, comprising the steps of: welding the cover band to and around the cutting edge of the inner seam margin; intermediately cooling said inner seam; and heat sealing upon the outwardly extending face of the cover band to the outer seam margin.
Claim 19
Dependent Claim
25 words
Method according to claim 17, wherein during said intermediate cooling step the cover band and inner seam margin are cooled down substantially to room temperature.
Claim 20
Dependent Claim
52 words
Method according to claim 17, wherein said cover band is initially, prior to said welding, provided with two longitudinally extending grooves, and thereafter is folded twice 180* around said grooves; one of the folds is opened again, and the cover band is then placed with this opening around the inner seam margin.
Claim 21
Dependent Claim
34 words
Method according to claim 17, wherein the packaging material and said cover band are produced from a continuous web; and subdividing said web into separate container bodies subsequent to said last heat sealing step.
Claim 22
Dependent Claim
45 words
Method according to claim 17, wherein said packaging material and cover band are produced from a continuous web; and subdividing said web subsequent to the step of welding said cover to said inner seam but prior to sealing said cover and said outer seam margin.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |