Patent US3812641A successfully refreshed from Google Patents.
US3812641A
Expired / Lapsed
US
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Method of forming, filling and closing cartons, and specific cartons therefor
Assignee: Individual
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Filing: 1973-04-03
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Granted: 1974-05-28
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Expires: 1993-04-03
Abstract
Abstract This disclosure is directed to a novel method of forming, filling, covering and sealing a carton which includes a bottom panel, four upstanding side panels, and a minor flange joined to each of the side panels, a product is packaged within the carton body, and a cover which preferably is post-scored but may be prescored is applied thereto and includes four major flanges, one overlying each of the minor flanges of the carton body, the method including the steps of deflecting the minor and major flanges relative to each other to provide an area for the receipt of a hot-melt adhesive, thereafter applying pressure to unite the flanges, and subsequently securing the adhered flanges to the carton side panels. The covers may be individually fed from a stack of blanks, severed from a web drawn from an appropriate roll or as another alternate the carton body and cover would be of an integral one-piece construction. From a carton standpoint both the carton and cover are preferably coated on each side with an over-all barrier coating of moisture impervious material and minor-flange to major-flange adhesion as well as adhesion of the latter flanges to the side panels is preferably though not exclusively achieved by the use of in-line applied hot-melt adhesives, although adhesive precoating may be employed along with other adhesives or equivalents.
Inventors
- 👤 R Bemiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:26
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/28; B65B7/2842; B65B7/2871; B65B7/2807; B65D; B65D5/00; B65D5/42; B65D5/62
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
98 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel, four upstanding side panels and a flange carried by at least one of said side panels, packaging a product within the carton body, spanning the carton body including the flange thereof with a cover with a flange of the latter atop the body flange, folding the flanges into external side-by-side relationship with an associated side panel, securing the flanges in the latter folded position, and post-forming a weakening line in the cover flange prior to the performance of the last-mentioned securing step.
Claim 2
Dependent Claim
98 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel, four upstanding side panels and a flange carried by at least one of said side panels, packaging a product within the carton body, spanning the carton body including the flange thereof with a cover with a flange of the latter atop the body flange, folding the flanges into external side-by-side relationship with an associated side panel, securing the flanges in the latter folded position, and post-forming a weakening line in the cover flange prior to the performance of the last-mentioned securing step.
Claim 3
Dependent Claim
123 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel, four upstanding side panels and a flange carried by at least one of said side panels, packaging a product within the carton body, spanning the carton body including the flange thereof with a cover with a flange of the latter atop the body flange, securing the flanges to each other, folding the thus secured flanges into external side-by-side relationship with an associated side panel, securing the flanges in in the latter folded postion post-forming contiguous common fold lines in said carton body and cover, and said common fold lines are of a concave configuration as viewed in transverse cross-section opening in a direction toward said bottom panel.
Claim 4
Dependent Claim
123 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel, four upstanding side panels and a flange carried by at least one of said side panels, packaging a product within the carton body, spanning the carton body including the flange thereof with a cover with a flange of the latter atop the body flange, securing the flanges to each other, folding the thus secured flanges into external side-by-side relationship with an associated side panel, securing the flanges in in the latter folded postion post-forming contiguous common fold lines in said carton body and cover, and said common fold lines are of a concave configuration as viewed in transverse cross-section opening in a direction toward said bottom panel.
Claim 5
Dependent Claim
21 words
The packaging method as defined in claim 1 wherein the step of post-scoring is performed by rotatable score and counterscore rolls.
Claim 6
Dependent Claim
19 words
The packaging method as defined in claim 3 wherein one of said rolls includes a resilient peripheral friction surface.
Claim 7
Dependent Claim
30 words
The packaging method as defined in claim 3 wherein a peripheral surface of at least one of said rolls tapers generally frusto-conically converging in a direction toward the carton interior.
Claim 8
Dependent Claim
144 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel, four upstanding side panels, and a flange carried by at least two opposite ones of said side panels, packaging a product within the carton body, spanning the carton body including the flanges thereof with a cover having cover flanges overlying said carton body flanges, conveying said carton body and cover in a direction parallel to said two opposite side panels, simultaneously securing each cover flange to its underlying carton body flange, folding the thus secured flanges simultaneously into external side-by-side relationship with the adjacent one of said two opposite side panels, securing the flanges in the latter folded positions, and simultaneously post-scoring common fold lines in at least the cover flanges in parallel relationship to each other with each fold line being immediately adjacent its associated side panel.
Claim 9
Dependent Claim
144 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel, four upstanding side panels, and a flange carried by at least two opposite ones of said side panels, packaging a product within the carton body, spanning the carton body including the flanges thereof with a cover having cover flanges overlying said carton body flanges, conveying said carton body and cover in a direction parallel to said two opposite side panels, simultaneously securing each cover flange to its underlying carton body flange, folding the thus secured flanges simultaneously into external side-by-side relationship with the adjacent one of said two opposite side panels, securing the flanges in the latter folded positions, and simultaneously post-scoring common fold lines in at least the cover flanges in parallel relationship to each other with each fold line being immediately adjacent its associated side panel.
Claim 10
Dependent Claim
63 words
The packaging method as defined in claim 6 including the further step of rotating the secured carton and cover to bring the remaining two side panels parallel to the direction of travel, and repeating the first-mentioned securing step, the folding step, and the second-securing step to at least one additional flange of the cover and an additional underlying flange of the carton body.
Claim 11
Dependent Claim
29 words
The packaging method as defined in claim 7 including the step of printing the exterior of the carton body bottom panel during the movement thereof in said predetermined direction.
Claim 12
Dependent Claim
128 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel and four upstanding side panels collectively defining a carton interior and a flange carried by at least one of the side panels, packaging a product within the carton body, spanning the carton body including the flange thereof with a cover with a flange of the latter atop the body flange, disposing flowable adhesive between the cover flange and the body flange, applying peripherally inwardly decreasing pressure between said cover and body flanges to extrude the flowable adhesive in a direction toward fold lines of said flanges and toward the carton interior, folding the flanges into external side-by-side relationship with an associated side panel, and securing the flanges in the latter folded position.
Claim 13
Dependent Claim
128 words
A packaging method comprising the steps of providing a carton body defined by a bottom panel and four upstanding side panels collectively defining a carton interior and a flange carried by at least one of the side panels, packaging a product within the carton body, spanning the carton body including the flange thereof with a cover with a flange of the latter atop the body flange, disposing flowable adhesive between the cover flange and the body flange, applying peripherally inwardly decreasing pressure between said cover and body flanges to extrude the flowable adhesive in a direction toward fold lines of said flanges and toward the carton interior, folding the flanges into external side-by-side relationship with an associated side panel, and securing the flanges in the latter folded position.
Claim 14
Dependent Claim
28 words
The packaging method as defined in claim 9 including the step of post-forming a weakening line in the cover flange prior to the performance of the folding step.
Claim 15
Dependent Claim
40 words
The packaging method as defined in claim 9 including the step of post-forming a weakening line in the cover flange prior to the performance of the step of applying the peripherally inwardly decreasing pressure to the cover and body flanges.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |