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US4334644A Expired / Lapsed US ⏱️ 0.0 years remaining

Dispenser carton

Assignee: CW Zumbiel Co
•
Filing: 1980-05-19
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Granted: 1982-06-15
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Expires: 2000-05-19
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Abstract

Abstract A dispenser carton for dispensing sheet material, e.g., household wrap type sheet material. A unique cutting edge structure for the carton permits tearing off a length of sheet material withdrawn from a supply roll inside the carton, while simultaneously braking the sheet material remaining on the roll during the tearing step to prevent inadvertent withdrawal of additional sheet material. In preferred form, the cutting edge structure is comprised of an abrasive applied to the free edge of the carton's closure flap, the abrasive being on the inside face of that closure flap. After the desired sheet material length is withdrawn from the roll within the carton, the carton's cover is closed and the closure flap is manually pressured against the carton's front wall. In this attitude, the abrasive and the closure flap's leading edge cooperate to provide a cutting edge by which the free length of sheet material can be torn off the supply roll from one edge to the other. Also in this use attitude, the abrasive on the closure flap's inside face cooperates with the carton's front wall to aid in preventing inadvertent withdrawal of additional sheet material from the carton as the free length is torn off the supply roll.

Inventors

  • 👤 Donald P. Hauser

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 22:09
CPC Classifications
B; B65; B65H; B65H35/00; B65H35/0006; B65H35/002; B65D; B65D83/00; B65D83/08; B65D83/0847; B65D83/0852; B65D83/0882; Y; Y10; Y10T; Y10T225/00; Y10T225/20; Y10T225/238; Y10T225/243; Y10T225/248; Y10T225/249; Y10T225/287; Y10T225/29; Y10T225/297

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 120 words
A carton comprising: a panel having structure that defines a cutting edge, a finger flap formed out of said panel, adjacent said cutting edge, said finger flap being connected on a fold line interiorly of said panel, and said finger flap being configured to preclude significant contact of said finger flap with sheet material being torn through use of said cutting edge during the tearing step, structure defining a notch in the cutting edge of said panel, said finger flap being positioned within said notch, and a backing strip which partially defines said cutting edge, said backing strip being connected to said panel at least in the area of said notch for maintaining a continuous cutting edge across said notch.
Claim 2
Dependent Claim 120 words
A carton comprising: a panel having structure that defines a cutting edge, a finger flap formed out of said panel, adjacent said cutting edge, said finger flap being connected on a fold line interiorly of said panel, and said finger flap being configured to preclude significant contact of said finger flap with sheet material being torn through use of said cutting edge during the tearing step, structure defining a notch in the cutting edge of said panel, said finger flap being positioned within said notch, and a backing strip which partially defines said cutting edge, said backing strip being connected to said panel at least in the area of said notch for maintaining a continuous cutting edge across said notch.
Claim 3
Dependent Claim 39 words
A carton as set forth in claim 1, said carton comprising abrasive material applied to said backing strip and to a free edge of said panel, said abrasive material and said free edge cooperating to define said cutting edge.

References Cited (Backward Citations)

US1961511A Cited
US2000867A Cited
US2314849A Cited
US2331651A Cited
US2633985A Cited
US2713939A Cited
US2888181A Cited
US2893616A Cited
US2936936A Cited
US3028060A Cited
US4005809A Cited
US3933288A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-06-14 1985-12-14 1986-06-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-06-14 1989-12-14 1990-06-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-06-14 1993-12-14 1994-06-15 $7700.00 Window Closed / Lapsed

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