US3815809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton with integral reinforced handle
Assignee: Interstate Folding Box Co
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Filing: 1972-06-21
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Granted: 1974-06-11
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Expires: 1992-06-21
Abstract
Abstract A one-piece paperboard carton structure having a reinforced carrying handle, the carton structure being particularly suited for packaging relatively large consumer sales units of bulk materials and having enclosing body walls and a multiple thickness carrying handle integrally connected to one of the body walls, with a plurality of the end closure flaps adjoining the handle acting to reinforce and strengthen the structure so as to resist peeling and tearing forces encountered when the filled carton is carried by its handle.
Inventors
- 👤 C Walters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:03
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/46; B65D5/46072; B65D5/46088
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
322 words
In a one-piece paperboard carton structure having four enclosing body walls, end closures at the opposite ends of said body walls, and an integral carrying handle extending along one side edge only of said top closure, said top closure having an opposing pair of full-width outermost closure flaps hingedly connected to an opposing pair of said enclosing body walls, said outermost closure flaps overlying the upper end of the carton body and being adhesively secured together in face-to-face relation, a third closure flap underlying and secured to said outermost closure flaps and integrally connected to one of the remaining carton body walls, a fourth closure flap integrally connected to the other of the remaining carton body walls and also secured to said outermost closure flaps, a first handle forming part integrally connected to said third closure flap, and a mating handle part integrally connected to said first handle part, said handle parts being folded and adhered together in face-to-face relation to form a multiple thickness handle, said handle being positioned to project outwardly beyond the uppermost edge of one of said remaining carton walls with its innermost end coinciding with the uppermost edge of said last named remaining carton body wall, said handle being reinforced and supported throughout its full length by the said third closure flap and by each of the said overlying pair of full-width outermost closure flaps, whereby when the filled carton is lifted by its said handle, the carton body will pivot about said handle to an inclined position with the weight load substantially equally distributed on opposite sides of the handle and the lifting forces exerted by the handle effectively transmitted to each of the carton body walls through the juxtaposed and sealed top closure flaps, said opposing pair of full-width outermost closure flaps effectively resisting peeling and tearing forces exerted on the handle by the weight of the filled carton when carried by its said handle.
Claim 2
Dependent Claim
322 words
In a one-piece paperboard carton structure having four enclosing body walls, end closures at the opposite ends of said body walls, and an integral carrying handle extending along one side edge only of said top closure, said top closure having an opposing pair of full-width outermost closure flaps hingedly connected to an opposing pair of said enclosing body walls, said outermost closure flaps overlying the upper end of the carton body and being adhesively secured together in face-to-face relation, a third closure flap underlying and secured to said outermost closure flaps and integrally connected to one of the remaining carton body walls, a fourth closure flap integrally connected to the other of the remaining carton body walls and also secured to said outermost closure flaps, a first handle forming part integrally connected to said third closure flap, and a mating handle part integrally connected to said first handle part, said handle parts being folded and adhered together in face-to-face relation to form a multiple thickness handle, said handle being positioned to project outwardly beyond the uppermost edge of one of said remaining carton walls with its innermost end coinciding with the uppermost edge of said last named remaining carton body wall, said handle being reinforced and supported throughout its full length by the said third closure flap and by each of the said overlying pair of full-width outermost closure flaps, whereby when the filled carton is lifted by its said handle, the carton body will pivot about said handle to an inclined position with the weight load substantially equally distributed on opposite sides of the handle and the lifting forces exerted by the handle effectively transmitted to each of the carton body walls through the juxtaposed and sealed top closure flaps, said opposing pair of full-width outermost closure flaps effectively resisting peeling and tearing forces exerted on the handle by the weight of the filled carton when carried by its said handle.
Claim 3
Dependent Claim
38 words
The carton structure claimed in claim 1 wherein said third closure flap is a full-width closure flap hingedly connected to the remaining carton body wall opposite the body wall with which the innermost end of the handle coincides.
Claim 4
Dependent Claim
24 words
The carton structure claimed in claim 2 wherein said mating handle part is integrally connected to an end edge of said first handle part.
Claim 5
Dependent Claim
51 words
The carton structure claimed in claim 1 wherein said first handle part is integrally connected to the uppermost edge of the carton body wall with which the innermost end of said handle coincides, and wherein said mating handle part in hingedly connected to the top edge of said first handle part.
Claim 6
Dependent Claim
24 words
The carton structure claimed in claim 4 wherein said third closure flap is hingedly connected to the opposite edge of said mating handle part.
Claim 7
Dependent Claim
173 words
In a blank for forming a one-piece paperboard carton structure having a single integral carrying handle extending along one side edge only of the carton top closure, the blank consisting essentially of a series of four body wall panels in side-by-side articulation, with end closure flaps at the bottom ends of said body wall panels, a pair of full-width top closure flaps hingedly connected to the upper edges of the first and third of said body wall panels, a third flap hingedly connected to the upper edge of the second of said body wall panels, said last named flap being cut and scored to define a pair of integral mating handle forming parts adapted to be folded relative to each other and juxtaposed to provide a single handle of double thickness, together with an integral closure portion adapted to extend at least partially across the upper End of the carton when the carton is erected, and a fourth end closure flap hingedly connected to the upper edge of said fourth carton body wall.
Claim 8
Dependent Claim
173 words
In a blank for forming a one-piece paperboard carton structure having a single integral carrying handle extending along one side edge only of the carton top closure, the blank consisting essentially of a series of four body wall panels in side-by-side articulation, with end closure flaps at the bottom ends of said body wall panels, a pair of full-width top closure flaps hingedly connected to the upper edges of the first and third of said body wall panels, a third flap hingedly connected to the upper edge of the second of said body wall panels, said last named flap being cut and scored to define a pair of integral mating handle forming parts adapted to be folded relative to each other and juxtaposed to provide a single handle of double thickness, together with an integral closure portion adapted to extend at least partially across the upper End of the carton when the carton is erected, and a fourth end closure flap hingedly connected to the upper edge of said fourth carton body wall.
Claim 9
Dependent Claim
57 words
The carton blank claimed in claim 6 wherein the closure portion of said third flap comprises a full-width closure flap hingedly connected directly to the upper edge of said second body wall panel, and wherein one of said handle forming parts is hingedly connected to the outermost edge of the full-width closure portion of said third flap.
Claim 10
Dependent Claim
42 words
The carton blank claimed in claim 7 wherein the other of said handle forming parts is hingedly connected to an end edge of said first named handle part and lies beyond the outermost edge of one of the adjoining full-width closure flaps.
Claim 11
Dependent Claim
41 words
The carton blank claimed in claim 6 wherein said handle forming parts are defined in said third flap immediately adjoining said second body wall panel, and wherein the closure portion of said third flap lies outwardly beyond said handle forming parts.
Claim 12
Dependent Claim
22 words
The carton blank claimed in claim 9 wherein the closure portion of said third flap is a less than full-width closure flap.
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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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |