US4417678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton opening device
Assignee: WestRock Minnesota Corp
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Filing: 1981-09-08
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Granted: 1983-11-29
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Expires: 2001-09-08
Abstract
Abstract A one-piece carton blank is erected into a carton containing a sheet of material rolled on a spool, the carton having a liftable top panel which is connected to a hood panel. The hood panel has a cutting edge, for example, a metal serrated strip protruding from its free edge, to tear the selected length of the sheet material. When the carton is closed the hood panel lies against the front panel of the carton. The carton is opened by the user inserting a finger through one, or preferably two, orifices in the hood panel and pushing against the front panel to break adhered areas and thereby free the hood from the front panel. The hood may have one or more liftable strips formed by parallel breakable score lines, the strips terminating at the orifice.
Inventors
- 👤 Harry I. Roccaforte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:32
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/08; B65D83/0847; B65D83/0852; B65D83/0882; B65H; B65H35/00; B65H35/0006; B65D85/00; B65D85/67; B65D85/671; B65D85/672; B65H2701/00; B65H2701/10; B65H2701/17; B65H2701/175; B65H2701/1752; Y; Y10; Y10T; Y10T225/00; Y10T225/20; Y10T225/238; Y10T225/243; Y10T225/248; Y10T225/251
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
176 words
A paperboard carton adapted to enclose material rolled upon a spool within the carton, said carton comprising: a series of panels formed from a one-piece carton blank and connected along articulated lines, said panels forming front and opposite back panels, two opposed end panels, a bottom panel and a top panel hinged to the back panel; a hood panel connected to said top panel and lying flat against said front panel when the carton is closed; a cutting edge strip attached to a free edge of said hood panel and projecting beyond said free edge so that the material may be torn against the cutting edge strip after the carton is opened; and a plurality of adhesive areas joining the hood panel and the front panel and at least one orifice in said hood panel of sufficient size to permit finger entry and located adjacent said adhesive areas so that finger pressure through said orifice against said front panel will break the jointure of said adhesive areas and separate the hood panel from the front panel.
Claim 2
Dependent Claim
176 words
A paperboard carton adapted to enclose material rolled upon a spool within the carton, said carton comprising: a series of panels formed from a one-piece carton blank and connected along articulated lines, said panels forming front and opposite back panels, two opposed end panels, a bottom panel and a top panel hinged to the back panel; a hood panel connected to said top panel and lying flat against said front panel when the carton is closed; a cutting edge strip attached to a free edge of said hood panel and projecting beyond said free edge so that the material may be torn against the cutting edge strip after the carton is opened; and a plurality of adhesive areas joining the hood panel and the front panel and at least one orifice in said hood panel of sufficient size to permit finger entry and located adjacent said adhesive areas so that finger pressure through said orifice against said front panel will break the jointure of said adhesive areas and separate the hood panel from the front panel.
Claim 3
Dependent Claim
23 words
The carton of claim 1 wherein there are at least two orifices in said hood panel of sufficient size to permit finger entry.
Claim 4
Dependent Claim
19 words
The carton of claim 1 and further comprising a flap cut from said hood panel and within said orifice.
Claim 5
Dependent Claim
10 words
The carton of claim 1 wherein said orifice is round.
Claim 6
Dependent Claim
136 words
A paperboard carton adapted to enclose material within the carton, said carton comprising: a series of panels formed from a one-piece carton blank and connected along articulated lines, said panels forming front and opposite back panels, two opposed end panels, a bottom panel and a top panel hinged to the back panel; a hood panel connected to said top panel and lying flat against said front panel when the carton is closed; and a plurality of adhesive areas joining the hood panel and the front panel and at least one orifice in said hood panel of sufficient size to permit finger entry and located adjacent said adhesive areas so that finger pressure through said orifice against said front panel will break the jointure of said adhesive areas and separate the hood panel from the front panel.
Claim 7
Dependent Claim
136 words
A paperboard carton adapted to enclose material within the carton, said carton comprising: a series of panels formed from a one-piece carton blank and connected along articulated lines, said panels forming front and opposite back panels, two opposed end panels, a bottom panel and a top panel hinged to the back panel; a hood panel connected to said top panel and lying flat against said front panel when the carton is closed; and a plurality of adhesive areas joining the hood panel and the front panel and at least one orifice in said hood panel of sufficient size to permit finger entry and located adjacent said adhesive areas so that finger pressure through said orifice against said front panel will break the jointure of said adhesive areas and separate the hood panel from the front panel.
Claim 8
Dependent Claim
23 words
The carton of claim 5 wherein there are at least two orifices in said hood panel of sufficient size to permit finger entry.
Claim 9
Dependent Claim
19 words
The carton of claim 5 and further comprising a flap cut from said hood panel and within said orifice.
Claim 10
Dependent Claim
195 words
A one-piece integral paperboard carton blank adapted to be erected into a carton to enclose material rolled upon a spool within the carton, said carton blank comprising: a series of panels forming said one-piece carton blank and connected along articulated lines, said panels being, in order, a front panel, a bottom panel, a back panel and a top panel, and flaps connected to said panels to form opposite ends of said carton; a hood panel connected to said top panel, which hood panel lies flat against said front panel when the carton is erected and closed; a cutting edge strip attached to the free edge of said hood panel and projecting beyond it so that the material may be torn against the cutting edge after the carton is opened; and a plurality of adhesive areas to join the hood panel and the front panel and at least one orifice in said hood panel of sufficient size to permit finger entry so that, after the carton is erected and closed, finger pressure through said orifice against said front panel will break the jointure of said adhesive areas and separate the hood panel from the front panel.
Claim 11
Dependent Claim
195 words
A one-piece integral paperboard carton blank adapted to be erected into a carton to enclose material rolled upon a spool within the carton, said carton blank comprising: a series of panels forming said one-piece carton blank and connected along articulated lines, said panels being, in order, a front panel, a bottom panel, a back panel and a top panel, and flaps connected to said panels to form opposite ends of said carton; a hood panel connected to said top panel, which hood panel lies flat against said front panel when the carton is erected and closed; a cutting edge strip attached to the free edge of said hood panel and projecting beyond it so that the material may be torn against the cutting edge after the carton is opened; and a plurality of adhesive areas to join the hood panel and the front panel and at least one orifice in said hood panel of sufficient size to permit finger entry so that, after the carton is erected and closed, finger pressure through said orifice against said front panel will break the jointure of said adhesive areas and separate the hood panel from the front panel.
Claim 12
Dependent Claim
26 words
A paperboard carton blank as in claim 8 wherein there are at least two orifices in said hood panel of sufficient size to permit finger entry.
Claim 13
Dependent Claim
22 words
A paperboard carton blank as in claim 8 and further comprising a flap cut from said hood panel and within said orifice.
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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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |