Carton and blank for packaging ice cream or the like

• US 4,749,086 A
• Filed: 02/11/1987
• Issued: 06/07/1988
• Est. Priority Date: 02/11/1987
• Status: Expired due to Term

• Current Assignee: Rendoll Paper Corporation, Rock-Tenn Packaging And Paperboard, LLC
• Original Assignee: Rolph-Clark-Stone Packaging Corporation
• Inventors: Donohie, Paul J.
• Primary Examiner(s): Little, Willis
• Application Number:
  US07/013,685
• Time in Patent Office: 482 Days
• Field of Search: 206/611, 206/626, 206/629, 206/631, 206/624, 229/132, 229/172, 229/905, 229/44 R
• US Class Current: 229/227
• CPC Class Codes: B65D 2301/10 Blanks mutually positioned to minimise waste material upon cutting out the individual blank from a continuous or large sheet
• CPC Class Codes: B65D 5/5415 the lines of weakness being provided in one or more closure flaps and in the container body so as to form after rupture a lid hinged to a side edge of the container body
• CPC Class Codes: B65D 5/5435 and defining after rupture a lid hinged to the side edge of the container body
• CPC Class Codes: Y10S 229/905 Frozen food

Abstract

The present invention pertains to a design for a carton blank for significantly enhancing the seal of a carton for packaging semi-liquids such as ice cream or the like without compromising the adaptability of the carton blank to mechanical folding devices. The carton blank includes front, bottom rear, and cover panels. A closure flap is hingedly connected to a top edge of the cover panel. The closure flap includes a tear strip for enabling a consumer to readily gain access to the contents of the carton. An end flap extends from each edge of the cover, rear, bottom and front panels. A cover or glue tab extends from each edge of the closure flap. A membrane extends from each of the front panel end flaps and the front panel for forming a substantially continuous lip about a potion of the outer periphery of the carton. The front panel membrane includes notches or recess at each end for receiving the corresponding ends of the front panel end flap membranes.

Claims

1. A blank for forming a carton for packaging ice cream and the like, comprising:

(a) connected cover, front, bottom, and rear panels;

(b) said cover and bottom panels each having front, rear, left and right edges;

(c) said front and rear panels each having top, bottom, left and right edges;

(d) a closure flap hingedly connected to said front edge of said

3. A blank as in claim 1, wherein:

(a) said notch is substantially rectangular in shape.

4. A blank as in claim 1, wherein:

(a) said front edges of said left and right front panel end flap membranes, in the non-erected position, extend substantially parallel and substantially aligned with their respective hinge lines formed intermediate said left and right front panel end flaps and said front panel;

(b) said left and right sides of said front panel membrane are spaced from the corresponding front edges of said left and right front panel end flaps forming a notch therebetween; and

,

(c) said notches each extend along said hinge line formed between said front panel membrane and said front panel a distance substantially equal to the length of the corresponding front edges of said left and right front panel end flap membranes.

5. A blank as in claim 3, wherein:

(a) said notches are substantially rectangular in shape.

6. A blank as in claim 4, wherein:

(a) said closure flap includes top, bottom left and right edges; and

,

(b) said left and right edges of said closure flap each have a cover tab hingedly connected thereto.

7. A blank as in claim 5, wherein:

(a) said closure flap includes at least one weakness line formed therein for permitting detachment of the cover panel from the front panel when the blank is fully erected.

8. A blank as in claim 1, wherein:

(a) said front and rear edges of said left and right bottom panel end flaps each include a first portion that extends in the non-erected position substantially parallel to a hinge line formed between said bottom and rear panels; and

,

(b) said first portions, in the non-erected position, overlap the corresponding bottom edges of said left and right front panel end flaps and said left and right rear panel end flaps for preventing leakage of ice cream or the like from the corners of the carton when said blank is fully erected.

9. A blank as in claim 1, wherein:

(a) said front and rear edges of said left and right bottom panel end flaps include a first portion that extends in the non-erected position substantially parallel to the hinge line formed between said bottom and rear panels; and

,

(b) said first portions, in the non-erected position, overlap the corresponding bottome edges of said left and right front panel end flaps and said left and right rear panel end flaps for preventing leakage of ice cream or the like from the corners of the carton when the blank is fully erected.

11. A carton as in claim 9, wherein:

(a) said notch is substantially rectangular in shape.

12. A carton as in claim 9, wherein:

(a) said front edges of said left and right front panel end flap membranes extend, in the erected position, substantially parallel to said front panel and being positioned forward of said rear edge of said front panel membrane;

(b) said left and right sides of said front panel membrane are spaced from the corresponding left and right front panel end flaps forming notches therebetween and,

(c) said notches each extend along said hinge line formed between said front panel membrane and said front panel a distance substantially equal to the length of the corresponding front edges of said left and right front panel end flap membranes.

13. A carton as in claim 11, wherein:

(a) said notches are substantially rectangular in shape.

14. A carton as in claim 12, wherein:

(a) said front and rear edges of said left and right bottom panel end flaps include a first portion that extends in the erected position substantially perpendicular to said cover panel and extends outwardly from the corresponding corner of said carton formed by the hinge lines intermediate said front panel and said left and right front panel end flaps and said rear panel and said left and right rear panel end flaps.

16. A blank as in claim 14, wherein:

(a) said rear edge of said front panel end flap membrane corresponding to said rear panel end flap having said overlapping top edge includes first and second portions;

(b) said first portion extends substantially perpendicular to said top edge of said front panel end flap; and

,

(c) said second portion forms an angle with said first portion of less than 180°

for permitting easy assembly of the blank.

2. cover panel;

(e) said rear panel being hingedly connected at its top edge to said rear edge of said cover panel;

(f) said bottom panel being hingedly connected at its rear edge to said bottom edge of said rear panel;

(g) said front panel being hingedly connected at its bottom edge to said front edge of said bottom panel;

(h) said panels each having left and right end flaps connected to said left and right edges respectively forming hinge lines therebetween;

(i) said left end flaps having dimensions such that upon folding of said left end flaps inwardly, to form the left end of the carton, the left end is substantially sealed for preventing leakage therefrom;

(j) said right end flaps having dimensions such that upon folding of said right end flaps inward, to form the right end of the carton, the right end is substantially sealed for preventing leakage therefrom;

(k) a membrane flap extending from the top edge of said front panel;

(l) said end flaps each having top, bottom, front and rear edges;

(m) said left and right front panel end flaps each having a membrane flap extending from said top edges in a direction substantially similar to the direction said front panel membrane extends in the non-erected position;

(n) said left and right front panel end flap membranes each having front, rear, inner and outer edges;

(o) said front panel membrane having rear, front, left side and right side edges;

(p) said left and right front panel end flap membranes and said front panel membrane, when said blank is erected, forming a substantially continuous lip extending inwardly and along at least a portion of an outer periphery of the carton;

(q) at leat one of said front panel end flap membranes, in the non-erected position, having a front edge extending substantially parallel and substantially aligned with its respective hinge line formed intermediate said left and right front panel end flaps and said front panel;

(r) said front panel membrane having its side edge, adjacent said at least one of said front panel end flaps, spaced therefrom forming a notch therebetween; and

,

(s) said notch extending along said hinge line formed between said front panel membrane and said front panel a distance substantially equal to the length of said front edge of said at least one of said front panel end flap membranes.

10. A carton for packaging ice cream or the like, comprising:

(a) connected cover, front, bottom, and rear panels;

(b) said cover and bottom panels each having front, rear, left and right edges;

(c) said front and rear panels each having top, bottom, left and right edges;

(d) a closure flap hingedly connected to said front edge of said cover panel;

(e) said rear penel being hingedly connected at its top edge to said rear edge of said cover panel;

(f) said bottom panel being hingedly connected at its rear edge to said bottom edge of said rear panel;

(g) said front panel being hingedly connected at its bottom edge to said front edge of said bottom panel;

(h) said panels each having left and right end flaps connected to said left and right edges respectively forming hinge lines therebetween;

(i) said left end flaps having dimensions such that upon folding of said left end flaps inwardly, to form the left end of the carton, the left end is substantially sealed for preventing leakage therefrom;

(j) said right end flaps having dimensions such that upon folding of said right end flaps inward, to form the right end of the carton, the right end is substantially sealed for preventing leakage therefrom;

(k) a membrane flap extending from the top edge of said front panel;

(l) said end flaps each having top, bottom, front and rear edges;

(m) said left and right front panel end flaps each having a membrane flap extending from said top edges in a direction substantially similar to the direction said front panel membrane extends in the non-erected position;

(n) said left and right front panel end flap membranes each having front, rear, inner and outer edges;

(o) said front panel membrane having rear, front, left side and right side edges;

(p) said left and right front panel end flap membranes and said front panel membrane, when said blank is erected, forming a substantially continuous lip extending inwardly and along at least a portion of an outer periphery of the carton;

(q) at least one of said front panel end flap membranes having a front edge extending, in the erected position, substantially parallel to said front panel and being positioned forward of said rear edge of said front panel membrane;

(r) said front panel membrane having its side edge, adjacent said at least one of said front panel end flaps, spaced therefrom forming a notch therebetween;

(s) said notch extending along said hinge line formed between said front panel membrane and said front panel a distance substantially equal to the length of said front edge of said at least one of said front panel end flap membranes;

(t) said closure flap having at least one weakness line formed therein for permitting detachment of the cover panel from the front panel when said carton is fully erected;

(u) means for securing said closure flap to said cover panel;

(v) means for securing said left end flaps in a fully erected position for forming a substantially sealed carton end; and

(w) means for securing said right end flaps in a fully errected position for forming a substantially sealed carton end.

15. A blank for forming a carton for packaging ice cream or the like comprising:

(a) connected cover, front, bottom and rear panels;

(b) said cover and bottom panels each having front, rear, left and right edges;

(c) said front and rear panels each having top, bottom, left and right edges;

(d) a closure flap hingedly connected to said front edge of said cover panel;

(e) said rear panel being hingedly connected at its top edge to said rear edge of said cover panel;

(f) said bottom panel being hingedly connected at its rear edge to said bottom edge of said rear panel;

(g) said front panel being hingedly connected at its bottom edge of said front edge of said bottom panel;

(h) said panels each having left and right end flaps connected to said left and right edges respectively forming hinge lines therebetween;

(i) said left end flaps having dimensions such that upon folding of said left end flaps inwardly, to form the left end of the carton, the left end is substantially sealed for preventing leakage therefrom;

(j) said end flaps having dimensions such that upon folding of said right end flaps inward, to form the right end of the carton, the right end is substantially sealed for preventing leakage thereform;

(k) a membrane flap extending from the top edge of said front panel;

(l) said left and right front panel end flaps each having an upper portion including top front and rear edges;

(m) said left and right front panel end flaps each having a membrane flap extending from said respective top edges in a direction substantially similar to the direction said front panel membrane extends in the non-erected position;

(n) said left and right front panel end flap membranes each having front, rear, inner and outer edges;

(o) said front panel membrane having rear, front, left side and right side edges;

(p) said left and right front panel end flap membranes and said front panel membrane, when said blank is erected, forming a substantially continuous lip extending inwardly and along at least a portion of an outer periphery of the carton;

(q) at least one of said left panel end flap membrane, right panel end flap membrane and said front panel membrane having a notch formed therein adjacent one of said hinge lines intermediate said left and right front panel end flaps and said front panel;

(r) said left and right rear panel end flaps each having top and bottom edges;

(s) said top edges extending, in the non-erected position, substantially parallel and substantially aligned with said hinge line formed intermediate said cover panel and said rear panel;

(t) at least one of said top edges of said left and right rear panel end flaps overlies it corresponding front panel end flap when said blank is erected;

(u) said rear edge of said front panel end flap membrane, corresponding to said rear panel end flap having said overlapping top edge, being positioned inwardly from the rear edge of the upper portion of their respective front panel end flaps a distance substantially equal to the distance said at least one overlapping top edge overlaps its corresponding from panel end flap for permitting easy assembly of the blank.

17. A blank as in claim 15, wherein:

(a) said closure flap includes top, bottom, left and right edges; and

,

(b) said left and right edges of said closure flap each have a cover tab hingedly connected thereto.

19. A carton as in claim 17, wherein:

(a) said front edges of said left and right bottom panel end flaps include a first portion that extends, in the erected position, substantially perpendicular to said cover panel and outwardly from the corresponding corner of said carton formed by the hinge lines intermediate said front panel and said left and right front panel end flaps and said rear panel and said left and right rear panel end flaps.

21. A carton as in claim 17, wherein:

(a) said rear edge of said front panel end flap membrane corresponding to said rear panel end flap having said overlapping top edge includes first and second portions;

(b) said first portion extends substantially perpendicular to said top edge of said front panel end flap; and

,

(c) said second portion forming an angle with said first portion of less than 180°

for permitting easy assembly of the blank.

23. A blank as in claim 21, wherein:

(a) said front panel membrane having a notch formed therein adjacent the hinge line intermediate said left panel end flap and said front panel.

25. A blank as in claim 21, wherein:

(a) said front and rear edges of said left and right bottom panel end flaps include a first portion that extends in the non-erected position substantially parallel to the hinge line formed between said bottom and rear panels; and

,

(b) said first portions, in the non-erected position, overlap the corresponding bottom edges of said left and right front panel end flaps and said left and right rear panel end flaps for preventing leakage of ice cream or the like from the corners of the carton when said blank is fully erected.

27. A carton as in claim 25, wherein:

(a) said front panel membrane having a notch formed therein adjacent the hinge line intermediate said left panel end flap and said front panel.

29. A carton as in claim 25, wherein:

(a) said front and rear edges of said left and right bottom panel end flaps include a first portion that extends in the erected position, substantially perpendicular to said cover panel and extends outwardly from the corresponding corner of said carton formed by the hinge lines intermediate said front panel and said left and right front panel end flaps and said rear panel and said left and right rear panel end flaps.

18. A carton for packaging ice cream or the like, comprising:

(a) connected cover, front, bottom, and rear panels;

(b) said cover and bottom panels each having front, rear, left and right edges;

(c) said front and rear panels each having top, bottom, left and right edges;

(d) a closure flap hingedly connected to said front edge of said cover panel;

(e) said rear panel being hingedly connected at its top edge to said rear edge of said cover panel;

(f) said bottom being hingedly connected at its rear edge to said bottom edge of said rear panel;

(g) said front panel being hingedly connected at its bottom edge to said front edge of said bottom panel;

(h) said panels each having left and right end flaps connected to said left and right edges respectively forming hinge lines therebetween;

(i) said left end flaps having dimensions such that upon folding of said left end flaps inwardly, to form the left end of the carton, the left end is substantially sealed for preventing leakage therefrom;

(j) said right end flaps having dimensions such that upon folding of said right end flaps inward, to form the right end of the carton, the right end is substantially sealed for preventing leakage therefrom;

(k) a membrane flap extending from the top edge of said front panel;

(l) said left and right front panel end flaps each having an upper portion including top, front and rear edges;

(m) said left and right front panel end flaps each having a membrane flap extending from said top edges;

(n) said left and right front panel end flap membranes each having front rear, inner and outer edges;

(o) said front panel membrane having rear, front, left and right side edges;

(p) said left and right front panel end flap membranes and said front panel membrane forming a substantially continuous lip extending inwardly and along at least a portion of an outer periphery of said carton;

(q) at least one of said left panel end flap membrane, right panel end flap membrane and said front panel membrane having a notch formed therein adjacent one of said hinge lines intermediate said left and right front panel end flaps and said front panel in the non-erected position;

(r) said left and right rear panel end flaps each having top and bottom edges;

(s) at least one of said top edges of said left and right rear panel end flaps overlaps it corresponding front panel end flap;

(t) said rear edge of said front panel end flap membrane, corresponding to said rear panel end flap having said overlapping top edge, being positioned inwardly from the rear edge of said upper portion of the corresponding front panel end flap at least a distance substantially equal to the distance said at least one overlapping top edge. overlaps its corresponding front panel end flap for permitting easy assembly of the blank;

(u) said closure flap having at least one weakness line formed therein for permitting detachment of the cover panel from the front panel when said carton is fully erected;

(v) means for securing said closure flap to said cover panel;

(w) means for securing said left end flaps in a fully erected position for forming a substantially sealed carton end; and

(x) means for securing said right end flaps in a fully erected position for forming a substantially sealed carton end.

20. A carton as in claim 18, wherein:

(a) said rear edges of said left and right cover panel end flaps include a first portion that extends, in the erected position, substantially perpendicular to said cover panel and outwardly from the corresponding corner of said carton formed by the hinge lines intermediate said rear panel and said left and right rear panel end flaps.

22. A blank for forming a carton for packaging ice cream or the like, comprising:

(a) connected cover, front, bottom, and rear panels;

(b) said cover and bottom panels each having front, rear, left and right edges;

(c) said front and rear panels each having top, bottom, left and right edges;

(d) a closure flap hingedly connected to said front edge of said cover panel;

(e) said rear panel being hingedly connected at its top edge to said rear edge of said cover panel;

(f) said bottom panel being hingedly connected at its rear edge to said bottom edge of said rear panel;

(g) said front panel being hingedly connected at its bottom edge to said front edge of said bottom panel;

(h) said panels each having left and right end flaps connected to said left and right edges respectively forming hinge lines therebetween;

(i) said left end flaps having dimensions such that upon folding of said left end flaps inwardly, to form the left end of the carton, the left end is substantially sealed for preventing leakage therefrom;

(j) said right end flaps having dimensions such that upon folding of said right end flaps inwardly, to form the right end of the carton, the right end is substantially sealed for preventing leakage therefrom;

(k) a membrane flap extending from the top edge of said front panel;

(l) said end flaps each having top, bottom, front and rear edges;

(m) said left and right front panel end flaps each having a membrane flap extending from said top edges, in a direction substantially similar to the direction said front panel membrane extends in the non-erected position, and forming therebetween first and second hinge lines respectively;

(n) said left and right front panel end flap membranes each having front, rear, inner and outer edges;

(o) said front panel membrane having rear, front, left and right side edges;

(p) said left and right front panel end flap membranes and said front panel membrane, when said blank is erected, forming a substantially continuous lip extending inwardly and along at least a portion of an outer periphery of the carton;

(q) at least one of said left panel end flap membrane, right panel end flap membrane and said front panel membrane having a notch formed therein adjacent one of said hinge lines intermediate said left and right front panel end flaps and said front panel;

(r) one of said first and second hinge lines adjacent said notch intersects the corresponding hinge line formed intermediate said left and right end flaps and said front panel; and

,

(s) a radius formed in said notch adjacent said intersection for preventing leakage of the corner of the carton formed at said intersection.

24. A blank as in claim 22, wherein:

(a) said notch is substantially rectangular in shape.

26. A carton for packaging ice cream of the like, comprising:

(a) connected cover, front, bottom and rear panels;

(b) said cover and bottom panels each having front, rear, left and right edges;

(c) said front and rear panels each having top, bottom, left and right edges;

(d) a closure flap hingedly connected to said front edge of said cover panel;

(e) said rear panel being hingedly connected at its top edge of said rear edge of said cover panel;

(f) said bottom panel being hingedly connected at its rear edge to said bottom edge of said rear panel;

(g) said front panel being hingedly connected at its bottom edge to said front edge of said bottom panel;

(h) said panels each having left and right end flaps connected to said left and right edges respectively forming hinge lines therebetween;

(i) said left end flaps having dimensions such that upon folding of said left end flaps inwardly, to form the left end of the carton, the left end is substantially sealed for preventing leakage therefrom;

(j) said right end flaps having dimensions such that upon folding of said right end flaps inwardly, to form the right end of the carton, the right end is substantially sealed for preventing leakage thereform;

(k) a membrane flap extending from the top edge of said front panel;

(l) said end flaps each having top, bottom, front and rear edges;

(m) said left and right front panel end flaps each having a membrane flap extending inwardly from said top edges forming therebetween first and second hinge lines respectively;

(n) said left and right front panel end flap membranes each having front, rear, inner and outer edges;

(o) said front panel membrane having rear, front, left side and right side edges;

(p) said left and right front panel end flap membranes and said front panel membrane, when said blank is erected, forming a substantially continuous lip extending inwardly and along at least a portion of an outer periphery of the carton;

(q) at least one of said left panel end flap membrane, right panel end flap membrane and said front panel membrane having a notch formed therein adjacent one of said hinge lines intermediate said left and right front panels;

(r) said notch having a configuration for accommodating an adjacent membrane;

(s) one of said first and second hinge lines adjacent said notch intersecting the corresponding hinge line formed intermediate said left and right end flaps and said front panel;

(t) a radius formed in said notch adjacent said intersection for preventing leakage of the carton formed at said intersection;

(u) said closure flap having at least one weakness line formed therein for permitting detachment of the cover panel from the front panel when said carton is fully erected;

(v) means for securing said closure flap to said cover panel;

(w) means for securing said left end flaps in a fully erected position for forming a substantially sealed carton end; and

(x) means for securing said right end flaps in a fully erected position for forming a substantially sealed carton end.

28. A carton as in claim 26, wherein:

(a) said notch is substantially rectangular in shape.