US3744705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton closure rigidifying construction
Assignee: Stone Container Corp
•
Filing: 1970-12-30
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Granted: 1973-07-10
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Expires: 1990-12-30
Abstract
Abstract A carton formed from foldable paperboard, cardboard or the like to include a first or top panel with a hingedly connected end closure or manufacturer''s flap, a second or front panel juxtaposed the top panel for adhesive attachment thereto by means of the flap, a pair of parallel side panels, and a rear panel disposed parallel to but spaced from the front panel. The flap forms a joint completing assembly of the carton. In one embodiment, slot and tab means are provided between the juxtaposed top and front panels which enable the tab means to maintain the joint rigid and intact while the adhesive sets. In another embodiment, in addition to the slot and tab means, a pair of flaps are hingedly connected to the side panels, respectively, to abut the rear panel and provide support to prevent bending thereof as the carton is being formed.
Inventors
- 👤 W Kuhn
- 👤 J Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:23
CPC Classifications
A; A45; A45C; A45C5/00; A45C5/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
222 words
A foldable carton formed from a one-piece paperboard blank comprising, at least a first top panel having a closure flap connected thereto along a hinge line, a second front panel positioned for cooperation along a free edge thereof with said closure flap and normal to the first panel, said panels being secured by an adhesive bond between said flap and said second panel, a pair of side panels, and a rear panel disposed parallel to but spaced from the second panel, slot and tab means positioned between said first and second panels for mating engagement one within the other rigidly supporting and maintaining said second panel normal to said first panel and inwardly of said closure flap while said adhesive bond is secured, said slot positioned along said hinge line, the transverse dimension of said slot being greater than the thickness of said tab such that the slot has a lead edge and an oppositely facing abutment edge when said first panel and said closure flap are lying in the same plane, said edges lying on opposite sides of said hinge line, said tab being integral with the second panel and juxtaposed said abutment edge while said bond is being secured, and rear panel support means associated with said side panels to rigidly support said rear panel during forming of said carton.
Claim 2
Dependent Claim
222 words
A foldable carton formed from a one-piece paperboard blank comprising, at least a first top panel having a closure flap connected thereto along a hinge line, a second front panel positioned for cooperation along a free edge thereof with said closure flap and normal to the first panel, said panels being secured by an adhesive bond between said flap and said second panel, a pair of side panels, and a rear panel disposed parallel to but spaced from the second panel, slot and tab means positioned between said first and second panels for mating engagement one within the other rigidly supporting and maintaining said second panel normal to said first panel and inwardly of said closure flap while said adhesive bond is secured, said slot positioned along said hinge line, the transverse dimension of said slot being greater than the thickness of said tab such that the slot has a lead edge and an oppositely facing abutment edge when said first panel and said closure flap are lying in the same plane, said edges lying on opposite sides of said hinge line, said tab being integral with the second panel and juxtaposed said abutment edge while said bond is being secured, and rear panel support means associated with said side panels to rigidly support said rear panel during forming of said carton.
Claim 3
Dependent Claim
26 words
A carton as claimed in claim 1 in which said rear panel support means comprise a pair of rear panel support flaps on said side panels.
Claim 4
Dependent Claim
26 words
A carton as claimed in claim 2 in which said rear panel support flaps are hingedly connected to said side panels to abut said rear panel.
Claim 5
Dependent Claim
179 words
In a foldable carton formed from a one-piece paperboard blank comprising at least one panel having a closure flap connected thereto along a hinge line, a second panel positioned for cooperation along a free edge thereof with said flap, an adhesive joint between said second panel and said flap with the first and second panels maintained one normal to the other; slot and tab means positioned between said panels for mating engagement one within the other rigidly supporting and maintaining said second panel normal to said one panel and inwardly of said closure flap while said adhesive joint is secured, said slot positioned along said hinge line and the transverse dimension of said slot being greater than the thickness of said tab such that the slot has a lead edge and an oppositely facing abutment edge when said first panel and said closure flap are lying in the same plane, said edges lying on opposite sides of said hinge line, said tab being integral with said second panel and juxtaposed said abutment edge while said joint is being secured.
Claim 6
Dependent Claim
179 words
In a foldable carton formed from a one-piece paperboard blank comprising at least one panel having a closure flap connected thereto along a hinge line, a second panel positioned for cooperation along a free edge thereof with said flap, an adhesive joint between said second panel and said flap with the first and second panels maintained one normal to the other; slot and tab means positioned between said panels for mating engagement one within the other rigidly supporting and maintaining said second panel normal to said one panel and inwardly of said closure flap while said adhesive joint is secured, said slot positioned along said hinge line and the transverse dimension of said slot being greater than the thickness of said tab such that the slot has a lead edge and an oppositely facing abutment edge when said first panel and said closure flap are lying in the same plane, said edges lying on opposite sides of said hinge line, said tab being integral with said second panel and juxtaposed said abutment edge while said joint is being secured.
Claim 7
Dependent Claim
27 words
A carton as claimed in claim 4 in which said slot and tab means comprise a pair of slots and tabs for cooperation respectively one with another.
Claim 8
Dependent Claim
199 words
A carton blank comprising at least a first panel having a hingedly connected flap along one edge thereof, an intermediate panel formed along an edge opposite said one edge, a second panel formed adjacent said intermediate panel, and a terminating panel formed adjacent said second panel, said terminating panel having a free end opposite said second panel, said terminating panel having an extension formed along the free edge thereof, the extension being of longitudinal dimension less than that of said terminating panel and coplanar therewith at all times, a fold line provided between said first panel and said flap, said first panel having a slot formed therein along said fold line, said extension having a length less than the length of said slot, the transverse dimension of said slot being greater than that of said extension, said second panel including a pair of side panels hingedly connected along opposite free edges thereof, a pair of intermediate panel support flaps formed respectively along one edge of each said side panels, said intermediate panel support flaps being hingedly connected to said side panels and being adapted to be assembled normal to said second panel in abutting relationship with said intermediate panel.
Claim 9
Dependent Claim
199 words
A carton blank comprising at least a first panel having a hingedly connected flap along one edge thereof, an intermediate panel formed along an edge opposite said one edge, a second panel formed adjacent said intermediate panel, and a terminating panel formed adjacent said second panel, said terminating panel having a free end opposite said second panel, said terminating panel having an extension formed along the free edge thereof, the extension being of longitudinal dimension less than that of said terminating panel and coplanar therewith at all times, a fold line provided between said first panel and said flap, said first panel having a slot formed therein along said fold line, said extension having a length less than the length of said slot, the transverse dimension of said slot being greater than that of said extension, said second panel including a pair of side panels hingedly connected along opposite free edges thereof, a pair of intermediate panel support flaps formed respectively along one edge of each said side panels, said intermediate panel support flaps being hingedly connected to said side panels and being adapted to be assembled normal to said second panel in abutting relationship with said intermediate panel.
References Cited (Backward Citations)
US2675160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |