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US4712728A Expired / Lapsed US ⏱️ 0.0 years remaining

Carton with improved handle

Assignee: Graphic Packaging International LLC
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Filing: 1987-04-02
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Granted: 1987-12-15
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Expires: 2007-04-02
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Abstract

Abstract A carton contains a flap on the outer top panel and a flap on the inner top panel, the free edge of the outer top panel flap overlying the inner top panel flap. When a user presses down on the outer top panel flap, it pivots out of the way to allow the user's fingers to fold the inner top panel flap under the top panel structure to provide a handle for lifting the carton. When the fingers are withdrawn, the outer top panel flap is biased upwardly by its arcuate foldable connection to close the handle opening. If the inner top panel flap is contacted by the outer top panel flap as it pivots upwardly, the outer top panel flap pushes the inner top panel flap up to a substantially closed position. Score lines extending from the ends of the foldable connections of the inner and outer top panel flaps to the corners of the carton distribute the lifting stresses to the side panels of the carton.

Inventors

  • 👤 Richard L. Schuster

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 06:17
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/42; B65D5/44; B65D5/46; B65D5/46072; B65D5/4608; Y; Y10; Y10S; Y10S229/00; Y10S229/92

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 246 words
In a paperboard carton, an upper panel structure comprising: an inner top panel; an outer top panel overlapping a portion of the inner top panel; the inner top panel containing a flap having an outer surface and an interior surface, and also having a free edge and an opposite edge foldably connected to the inner top panel in the overlapped portion thereof to form a foldable connection; the outer top panel containing a flap covering a handle opening, the outer top panel flap having a free edge and an opposite edge foldably connected to the outer top panel to form a foldable connection, the foldable connections of the inner and outer top panel flaps being farther apart than the free edges of the flaps; the free edge of the outer top panel flap overlying the outer surface of the inner top panel flap so that when fingers of a user press down on the outer top panel flap, the free edge of the outer top panel flap pivots downwardly about the foldable connection of the outer top panel flap and the inner top panel flap pivots downwardly about the foldable connection of the inner top panel flap, the inner top panel flap adapted to be folded under by the fingers and the outer top panel flap adapted to be pivoted downwardly by the backs of the fingers; and means causing the outer top panel flap to pivot upwardly upon removal of the fingers of a user.
Claim 2
Dependent Claim 246 words
In a paperboard carton, an upper panel structure comprising: an inner top panel; an outer top panel overlapping a portion of the inner top panel; the inner top panel containing a flap having an outer surface and an interior surface, and also having a free edge and an opposite edge foldably connected to the inner top panel in the overlapped portion thereof to form a foldable connection; the outer top panel containing a flap covering a handle opening, the outer top panel flap having a free edge and an opposite edge foldably connected to the outer top panel to form a foldable connection, the foldable connections of the inner and outer top panel flaps being farther apart than the free edges of the flaps; the free edge of the outer top panel flap overlying the outer surface of the inner top panel flap so that when fingers of a user press down on the outer top panel flap, the free edge of the outer top panel flap pivots downwardly about the foldable connection of the outer top panel flap and the inner top panel flap pivots downwardly about the foldable connection of the inner top panel flap, the inner top panel flap adapted to be folded under by the fingers and the outer top panel flap adapted to be pivoted downwardly by the backs of the fingers; and means causing the outer top panel flap to pivot upwardly upon removal of the fingers of a user.
Claim 3
Dependent Claim 61 words
A paperboard carton according to claim 1, wherein the outer top panel flap engages the interior surface of the inner top panel flap when the fingers of a user have been withdrawn and the inner top panel flap has returned to its approximately original position, the outer top panel flap biasing the inner top panel flap upwardly toward its closed position.
Claim 4
Dependent Claim 40 words
A paperboard carton according to claim 1, wherein the outer top panel flap returns to its approximately original position when the fingers of a user have been withdrawn and the inner top flap has not returned to its original position.
Claim 5
Dependent Claim 44 words
A paperboard carton according to claim 1, wherein the means for causing the outer top panel flap to pivot upwardly upon removal of the fingers of a user comprises a nonlinear foldable connection between the upper top panel flap and the upper top panel.
Claim 6
Dependent Claim 57 words
A paperboard carton according to claim 4, wherein the nonlinear foldable connection is arcuate, the distance from the ends of the arcuate foldable connection to the free edge of the outer top panel flap being less than the distance from intermediate portions of the arcuate foldable connection to the free edge of the outer top panel flap.
Claim 7
Dependent Claim 24 words
A paperboard carton according to claim 1, wherein the upper panel structure further comprises dust flaps lying beneath the inner and outer top panels.
Claim 8
Dependent Claim 60 words
A paperboard carton according to claim 6, wherein the dust flaps have ends facing each other, the ends of the dust flaps being spaced from each other in the vicinity of the inner top panel flap a distance greater than the length of the inner top panel flap to allow the inner top panel flap to be pivoted downwardly therebetween.
Claim 9
Dependent Claim 47 words
A paperboard carton according to claim 7, wherein the dust flaps further contain edges extending substantially parallel to and adjacent the foldable connection of the inner top panel flap, whereby the inner top panel flap can be folded underneath said edges by the fingers of a user.
Claim 10
Dependent Claim 34 words
A paperboard carton according to claim 1, wherein the inner top panel has a free edge and wherein the inner top panel flap is recessed from the free edge of the inner top panel.
Claim 11
Dependent Claim 34 words
A paperboard carton according to claim 1, wherein the outer top panel has a free edge and wherein the outer top panel flap is spaced from the free edge of the outer top panel.
Claim 12
Dependent Claim 32 words
A paperboard carton according to claim 10, wherein a strip of paperboard extends between the free edge of the outer top panel flap and the free edge of the outer top panel.
Claim 13
Dependent Claim 190 words
A paperboard carton according to claim 1, wherein the foldable connection of the inner top panel flap has two ends between which the foldable connection of the inner top panel flap extends, and the foldable connection of the outer top panel flap has two ends between which the foldable connection of the outer top panel flap extends, and wherein the inner top panel is connected to the carton along a fold line extending between two corners of the carton and the outer top panel is connected to the carton along a fold line extending between two opposite corners of the carton, the inner top panel containing a score line extending from each end of the foldable connection of the inner top panel flap to the nearest corners of the carton, and the outer top panel flap containing a score line extending from each end of the foldable connection of the outer top panel flap to the nearest corners of the carton, whereby when a user lifts the carton, the upper panel structure bows smoothly upwardly, the score lines assisting to distribute the lifting stresses to the corners of the carton.
Claim 14
Dependent Claim 92 words
A paperboard carton according to claim 12, wherein the outer top panel has a free edge, wherein the free edge of the outer top panel flap terminates at two ends thereof, and wherein a strip of paperboard extends between the free edge of the outer top panel flap and the free edge of the outer top panel, the strip containing score lines extending from the ends of the free edge of the outer top panel flap so as to form a continuation of the score lines in the underlying inner top panel.
Claim 15
Dependent Claim 26 words
A paperboard carton according to claim 1, wherein the foldable connection of the inner top panel flap is substantially centrally located in the upper panel structure.
Claim 16
Dependent Claim 242 words
In a paperboard carton, an upper panel structure comprising: an inner top panel; an outer top panel overlapping a portion of the inner top panel; the inner top panel containing a flap having a free edge and an opposite edge foldably connected to the inner top panel in the overlapped portion thereof to form a foldable connection; the outer top panel containing a flap covering a handle opening, the flap having a free edge and an opposite edge foldably connected to the outer top panel to form a foldable connection, the distance between the foldable connections of the inner and outer top panel flaps being greater than the distance between the free edges of the flaps; the free edge of the outer top panel flap overlying the inner top panel flap; the inner top panel being connected to the carton along a fold line extending between two corners of the carton; the outer top panel being connected to the carton along a fold line extending between two opposite corners of the carton; score lines extending from the foldable connection of the inner top panel flap toward the nearest corners of the carton; and score lines extending from the foldable connection of the outer top panel flap toward the nearest corners of the carton, whereby when a user lifts the carton, the upper panel structure bows smoothly upwardly, the score lines assisting to distribute the lifting stresses toward the corners of the carton.
Claim 17
Dependent Claim 242 words
In a paperboard carton, an upper panel structure comprising: an inner top panel; an outer top panel overlapping a portion of the inner top panel; the inner top panel containing a flap having a free edge and an opposite edge foldably connected to the inner top panel in the overlapped portion thereof to form a foldable connection; the outer top panel containing a flap covering a handle opening, the flap having a free edge and an opposite edge foldably connected to the outer top panel to form a foldable connection, the distance between the foldable connections of the inner and outer top panel flaps being greater than the distance between the free edges of the flaps; the free edge of the outer top panel flap overlying the inner top panel flap; the inner top panel being connected to the carton along a fold line extending between two corners of the carton; the outer top panel being connected to the carton along a fold line extending between two opposite corners of the carton; score lines extending from the foldable connection of the inner top panel flap toward the nearest corners of the carton; and score lines extending from the foldable connection of the outer top panel flap toward the nearest corners of the carton, whereby when a user lifts the carton, the upper panel structure bows smoothly upwardly, the score lines assisting to distribute the lifting stresses toward the corners of the carton.
Claim 18
Dependent Claim 60 words
A paperboard carton according to claim 15, wherein the outer top panel has a free edge and wherein a strip of paperboard extends between the free edge of the outer top panel flap and the free edge of the outer top panel, the strip containing score lines forming a continuation of the score lines in the underlying inner top panel.
Claim 19
Dependent Claim 26 words
A paperboard carton according to claim 16, wherein the foldable connection of the inner top panel flap is substantially centrally located in the upper panel structure.
Claim 20
Dependent Claim 36 words
A paperboard carton according to claim 15, wherein the outer top panel flap is connected to the outer top panel by a nonlinear foldable connection which biases the outer top panel flap in an upward direction.
Claim 21
Dependent Claim 72 words
A paperboard carton according to claim 18, wherein the nonlinear foldable connection has two ends between which the foldable connection extends and wherein the nonlinear foldable connection is arcuate, the distance from the ends of the arcuate foldable connection to the free edge of the outer top panel flap being less than the distance from intermediate portions of the arcuate foldable connection to the free edge of the outer top panel flap.
Claim 22
Dependent Claim 139 words
In a paperboard carton, an upper panel structure comprising: an inner top panel; an outer top panel overlapping a portion of the inner top panel; the outer top panel containing a flap covering a handle opening, the flap having a free edge and an opposite edge foldably connected to the outer top panel; the free edge of the flap being located generally centrally of the upper panel structure; the inner top panel having an edge beneath and adjacent to the free edge of the flap, so that when fingers of a user press down on the flap the free edge of the flap pivots downwardly about the foldable connection of the flap to allow the fingers to grip said inner top panel edge; and means causing the outer top panel flap to pivot upwardly upon removal of the fingers.
Claim 23
Dependent Claim 139 words
In a paperboard carton, an upper panel structure comprising: an inner top panel; an outer top panel overlapping a portion of the inner top panel; the outer top panel containing a flap covering a handle opening, the flap having a free edge and an opposite edge foldably connected to the outer top panel; the free edge of the flap being located generally centrally of the upper panel structure; the inner top panel having an edge beneath and adjacent to the free edge of the flap, so that when fingers of a user press down on the flap the free edge of the flap pivots downwardly about the foldable connection of the flap to allow the fingers to grip said inner top panel edge; and means causing the outer top panel flap to pivot upwardly upon removal of the fingers.

References Cited (Backward Citations)

CA740309A Cited
CA877792A Cited
US3904036A Cited
CH601064A5 Cited
US4478334A Cited
US4588084A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-12-14 1991-06-15 1991-12-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-12-14 1995-06-15 1995-12-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-12-14 1999-06-15 1999-12-15 $7700.00 Window Closed / Lapsed

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