US4200193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy opening, recloseable blister card container
Assignee: WestRock Minnesota Corp
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Filing: 1979-03-05
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Granted: 1980-04-29
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Expires: 1999-03-05
Abstract
Abstract An easy opening recloseable blister card container includes a thermoformed blister receptacle bonded to the face of a card which includes a hingedly attached closure flap defined by perforated score lines in the card. The closure flap includes a locking tab integral therewith defined by an arcuate cut line which is hinged along a crease line in the flap and may be pivoted into overlapping relationship with a flange edge of the blister receptacle on the opposite side of the card to lock the closure flap in a closed position covering an opening in the card through which access to the blister receptacle is provided. A grip tab formed integral with the locking tab enables a user to initially tear the closure flap away from the card along the score lines and also provides a means of manipulating the locking tab to lock the closure flap in its closed position.
Inventors
- 👤 Daniel J. Boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:38
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65D75/36; B65D75/366; B65D2575/00; B65D2575/28; B65D2575/30; B65D2575/36; B65D2575/361; B65D2575/362; B65D2575/367; B65D2575/368
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
346 words
A container provided with a closable opening therein, comprising: an enclosure including a plastic blister having first, second, third and fourth edges defining the perimeter thereof, said enclosure further including a rigid unitary card fixedly attached to marginal areas of said blister along essentially the entire length of said first, second and third edges of said blister whereby to define a wall of said enclosure, said card being provided with a continuous opening therein extending from one side of said fourth edge of said blister to the opposite side of said fourth edge whereby to define a first open portion in said card in registration with said blister to allow access to said enclosure and a second open portion in said card contiguous with said first open portion and adjacent said blister, peripheral portions of said card essentially completely circumscribing said continuous opening whereby to provide a rigid border therearound, said card having a closure flap integral therewith which is swingable about a fold line in said card from a closed position covering said first open portion in said card wherein said closure flap is essentially coplanar with said card and an open position allowing access to the interior of said enclosure through said first open portion of said card, one extremity of said closure flap distal from said fold line including a locking tab formed integral therewith and extending partially into said second open portion of said card whereby to provide access to said locking tab, said locking tab being shiftable toward and away from the plane of said flap about a crease line in the latter, said fourth edge of said blister defining a lock edge extending transverse to said closure flap and in registration with said locking tab when said closure flap is in said closed position thereof, said locking tab being shiftable to a position on one side of said lock edge opposite said closure flap whereby said lock edge is interposed between portions of said closure flap and said locking tab to lock said closure flap in said closed position thereof.
Claim 2
Dependent Claim
346 words
A container provided with a closable opening therein, comprising: an enclosure including a plastic blister having first, second, third and fourth edges defining the perimeter thereof, said enclosure further including a rigid unitary card fixedly attached to marginal areas of said blister along essentially the entire length of said first, second and third edges of said blister whereby to define a wall of said enclosure, said card being provided with a continuous opening therein extending from one side of said fourth edge of said blister to the opposite side of said fourth edge whereby to define a first open portion in said card in registration with said blister to allow access to said enclosure and a second open portion in said card contiguous with said first open portion and adjacent said blister, peripheral portions of said card essentially completely circumscribing said continuous opening whereby to provide a rigid border therearound, said card having a closure flap integral therewith which is swingable about a fold line in said card from a closed position covering said first open portion in said card wherein said closure flap is essentially coplanar with said card and an open position allowing access to the interior of said enclosure through said first open portion of said card, one extremity of said closure flap distal from said fold line including a locking tab formed integral therewith and extending partially into said second open portion of said card whereby to provide access to said locking tab, said locking tab being shiftable toward and away from the plane of said flap about a crease line in the latter, said fourth edge of said blister defining a lock edge extending transverse to said closure flap and in registration with said locking tab when said closure flap is in said closed position thereof, said locking tab being shiftable to a position on one side of said lock edge opposite said closure flap whereby said lock edge is interposed between portions of said closure flap and said locking tab to lock said closure flap in said closed position thereof.
Claim 3
Dependent Claim
50 words
The container of claim 1, wherein said blister forms a receptacle having a plurality of flat flange strips extending around the periphery thereof which define said first, second, third and fourth edges of said blister, at least portions of said flange strips being bonded to one side of said card.
Claim 4
Dependent Claim
42 words
The container of claim 2, wherein said locking tab comprises an arcuately shaped edge defined by a cut line in central portions of said closure flap and extending from said crease line in a direction toward said fold line in said card.
Claim 5
Dependent Claim
56 words
The container of claim 3, wherein said closure flap further includes a grip tab extending from said crease line in said closure flap in a direction away from said locking tab and into said second open portion of said card, said grip tab and said locking tab being coplanar and simultaneously pivotable about said crease line.
Claim 6
Dependent Claim
24 words
The container of claim 4, wherein at least certain of the edges of said grip tab are defined by score lines in said card.
Claim 7
Dependent Claim
24 words
The container of claim 5, wherein said certain edges of said grip tab frictionally engage adjacent edges of said card along said score lines.
Claim 8
Dependent Claim
25 words
The container of claim 4, wherein said fold line, said crease line and said lock edge are essentially straight and are parallel to each other.
Claim 9
Dependent Claim
30 words
The container of claim 4, wherein said closure flap is provided with V-shaped opposing edges defined by score lines in said card adjacent said one extremity of said closure flap.
Claim 10
Dependent Claim
15 words
A blank comprising a single sheet of paperstock for forming the card of claim 1.
Claim 11
Dependent Claim
315 words
A container provided with a closable opening therein, comprising: an enclosure including a plastic blister having a plurality of margins defining the perimeter thereof, said enclosure further including a unitary card fixedly attached to more than one of said plurality of margins of said blister whereby to define a wall of said enclosure, said card being provided with an opening therein in registration with said blister and completely circumscribed by peripheral portions of said card, said card further including a closure flap integral therewith which is swingable about a fold line in said card from a closed position covering said opening and an open position allowing access to the interior of said enclosure through said opening therein, one extremity of said closure flap distal from said fold line including a locking tab formed integral therewith and shiftable toward and away from the plane of said closure flap about a crease line in the latter, one of said margins defining a lock edge extending transverse to said closure flap and in registration with said locking tab when said closure flap is in said closed position thereof, said locking tab being shiftable to a position on one side of said lock edge opposite said closure flap whereby said lock edge is interposed between portions of said closure flap and said locking tab to lock said closure flap in said closed position thereof, said card further including an access flap therein defined by a first cut line in said card spaced from said crease line in a direction away from said fold line, and second and third cut lines in said card communicating with said first cut line and extending away from said first cut line in a direction away from said crease line, said access flap being shiftable out of the plane of said card to permit access and gripping by a user of said locking tab.
Claim 12
Dependent Claim
315 words
A container provided with a closable opening therein, comprising: an enclosure including a plastic blister having a plurality of margins defining the perimeter thereof, said enclosure further including a unitary card fixedly attached to more than one of said plurality of margins of said blister whereby to define a wall of said enclosure, said card being provided with an opening therein in registration with said blister and completely circumscribed by peripheral portions of said card, said card further including a closure flap integral therewith which is swingable about a fold line in said card from a closed position covering said opening and an open position allowing access to the interior of said enclosure through said opening therein, one extremity of said closure flap distal from said fold line including a locking tab formed integral therewith and shiftable toward and away from the plane of said closure flap about a crease line in the latter, one of said margins defining a lock edge extending transverse to said closure flap and in registration with said locking tab when said closure flap is in said closed position thereof, said locking tab being shiftable to a position on one side of said lock edge opposite said closure flap whereby said lock edge is interposed between portions of said closure flap and said locking tab to lock said closure flap in said closed position thereof, said card further including an access flap therein defined by a first cut line in said card spaced from said crease line in a direction away from said fold line, and second and third cut lines in said card communicating with said first cut line and extending away from said first cut line in a direction away from said crease line, said access flap being shiftable out of the plane of said card to permit access and gripping by a user of said locking tab.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |