Patent US3680689A successfully refreshed from Google Patents.
US3680689A
Expired / Lapsed
US
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Enclosure with progressively destructible seal
Assignee: Stadex AB
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Filing: 1970-07-15
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Granted: 1972-08-01
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Expires: 1990-07-15
Abstract
Abstract A receptacle serving for the storage of one or more dispensable substances has two wall portions interconnected along a barrier zone of more or less constant width by a destructible seal formed at least in part from an elongate member which is extensible in its longitudinal direction and adheres, directly or through an interposed bonding layer, to the two wall portions while extending over the full width of that zone. This extensible member, e.g. an elastic tape or an undulating filament, has an outwardly projecting extremity by which it may be gripped and subjected to a longitudinal pull gradually reaching the opposite end, or some intermediate clamping point, upon progressive detachment of the member from the wall portions bracketing it. With the receptacle in the form of a flexible envelope subdivided by the barrier zone into two compartments containing respective components of a hardenable mixture, a partial rupture of the seal allows the components to be intermixed within the envelope in the region of the resulting gap whereupon the envelope may be partly cut open for removal of the mixture, except for a residue left to reseal the envelope beyond the gap before further utilization.
Inventors
- 👤 Friedrich Grundschober
- 👤 Erhard Wychera
- 👤 Jean Paul Carriere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3261; B65D81/3266; B65D25/00; B65D25/02; B65D25/04; B65D25/08
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
141 words
A receptacle for the storage of at least one dispensable substance, comprising enclosure means with two wall portions approaching each other along a fluidtight barrier zone forming part of the boundary of a closed compartment filled with said substance, and seal means releasably interconnecting said wall portions along said zone; said seal means including an elongate member extensible in its longitudinal direction and interposed between said wall portions in adhering relationship therewith while spanning substantially the full width over a substantial part of the length of said zone, said member having a free extremity projecting outwardly from said enclosure means for exertion of longitudinal tension thereon with consequent progressive elongation of said member and creation of a lengthening gap between said wall portions, and an adhesive mass spread over the entire Barrier zone for bonding said wall portions to each other.
Claim 2
Dependent Claim
141 words
A receptacle for the storage of at least one dispensable substance, comprising enclosure means with two wall portions approaching each other along a fluidtight barrier zone forming part of the boundary of a closed compartment filled with said substance, and seal means releasably interconnecting said wall portions along said zone; said seal means including an elongate member extensible in its longitudinal direction and interposed between said wall portions in adhering relationship therewith while spanning substantially the full width over a substantial part of the length of said zone, said member having a free extremity projecting outwardly from said enclosure means for exertion of longitudinal tension thereon with consequent progressive elongation of said member and creation of a lengthening gap between said wall portions, and an adhesive mass spread over the entire Barrier zone for bonding said wall portions to each other.
Claim 3
Dependent Claim
24 words
A receptacle as defined in claim 1 wherein said member is an elastic tape of a width substantially equal to that of said zone.
Claim 4
Dependent Claim
31 words
A receptacle as defined in claim 2 wherein said adhesive mass forms a pair of layers disposed on opposite sides of said tape and substantially equal to that of said zone.
Claim 5
Dependent Claim
25 words
A receptacle as defined in claim 1 wherein said member is a filament substantially narrower than said zone wound in nonoverlapping undulations spanning said zone.
Claim 6
Dependent Claim
22 words
A receptacle as defined in claim 4 wherein said undulations are spaced apart, said adhesive mass filling the voids between said undulations.
Claim 7
Dependent Claim
27 words
A receptacle as defined in claim 5 wherein said wall portions consist of thermoplastic material, said mass being parts of said wall portions penetrating into said voids.
Claim 8
Dependent Claim
39 words
A receptacle as defined in claim 1 wherein said enclosure means comprises a pair of substantially coextensive flexible foils sealed to each other along their edges to form a closed envelope, said wall portions forming part of said foils.
Claim 9
Dependent Claim
47 words
A receptacle as defined in claim 7 wherein said wall portions are intermediate sections of said foils and wherein said zone is a strip dividing the interior of said envelope into two juxtaposed compartments, said extremity projecting from an edge of said envelope transverse to said strip.
Claim 10
Dependent Claim
20 words
A receptacle as defined in claim 8 wherein said compartments are filled with respective reactive components of a hardenable mixture.
Claim 11
Dependent Claim
29 words
A receptacle as defined in claim 8 wherein said envelope has a tapering outline with a reduced neck portion, said extremity projecting from an edge of said neck portion.
Claim 12
Dependent Claim
31 words
A receptacle as defined in claim 7 wherein said envelope is generally polygonal and said zone extends along an edge of the polygon, with said extremity projecting from a corner thereof.
Claim 13
Dependent Claim
57 words
A receptacle as defined in claim 1 wherein said enclosure means comprises a container with a rim around an open top and a lid received in said open top, said wall portions being part of said rim and part of a depending flange on said lid paralleling said peripheral edge, said extremity projecting upwardly from said container.
Claim 14
Dependent Claim
142 words
In a receptacle having at least one sealed compartment surrounded by a peripheral boundary between two substantially flat wall portions, the improvement wherein said boundary includes an elongate fluidtight barrier zone along which said wall portions closely approach each other with interposition of an adhesive mass spread over the entire zone for bonding said wall portions to each other, and a meandering filamentary element imbedded in said mass while projecting endwise from said zone to enable exertion of a pulling force thereon, said element being looped in a plane substantially parallel to said wall portions in nonoverlapping undulations across substantially the full width of said zone with penetration of said mass between the undulations thereof whereby the exertion of said pulling force progressively separates said wall portions upon the straightening of successive loops of said element with destruction of the intervening bond.
Claim 15
Dependent Claim
142 words
In a receptacle having at least one sealed compartment surrounded by a peripheral boundary between two substantially flat wall portions, the improvement wherein said boundary includes an elongate fluidtight barrier zone along which said wall portions closely approach each other with interposition of an adhesive mass spread over the entire zone for bonding said wall portions to each other, and a meandering filamentary element imbedded in said mass while projecting endwise from said zone to enable exertion of a pulling force thereon, said element being looped in a plane substantially parallel to said wall portions in nonoverlapping undulations across substantially the full width of said zone with penetration of said mass between the undulations thereof whereby the exertion of said pulling force progressively separates said wall portions upon the straightening of successive loops of said element with destruction of the intervening bond.
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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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |