US4607786A — Double insert lock carton and blank therefor

Claim 1

Independent Claim 360 words

A paperboard blank for forming a double lock carton, said blank comprising: rectangular first side panel, rectangular rear panel, rectangular second side panel and rectangular front panel consecutively articulated to one another along parallel fold lines, said front panel including a top edge extending generally perpendicular to the fold line between said second side panel and said front panel, at least one locking cut line extending through said front panel and an aperture disposed in said front panel intermediate said cut line and said top edge; bottom flaps articulated respectively to said first side panel, rear panel, second side panel and front panel along fold lines; rectangular top panel being articulated to said rear panel along a fold line extending substantially parallel to the foldable connection between said rear panel and its respective bottom flap; front flap articulated to said top panel along a fold line extending substantially parallel to the foldable connection of said top and rear panels; a locking flap connected to said front flap, said locking flap including at least one locking edge spaced from said top panel a distance substantially equal to the distance between the top edge and the locking cut line in said front panel, said front flap including a locking tab defined by at least one cut line extending convexly toward said top panel, and being disposed such that the distance between said locking tab and said top panel is less than the distance between the top edge of said front panel and the aperture therein; first and second pairs of generally triangular corner connecting panels foldably connected to said top panel and said first and second side panels respectively, the triangular corner connecting panels in each said pair being articulated to one another along fold lines which intersect the foldable connections of said rear panel to said top panel and each including a locking protrusion extending from the portion of said first and second corner connecting panels adjacent the first and second side panels respectively; and a pair of locking cut lines extending toward one another from the opposed ends of the foldable connection between said top panel and said front flap.

Claim 2

Dependent Claim 360 words

A paperboard blank for forming a double lock carton, said blank comprising: rectangular first side panel, rectangular rear panel, rectangular second side panel and rectangular front panel consecutively articulated to one another along parallel fold lines, said front panel including a top edge extending generally perpendicular to the fold line between said second side panel and said front panel, at least one locking cut line extending through said front panel and an aperture disposed in said front panel intermediate said cut line and said top edge; bottom flaps articulated respectively to said first side panel, rear panel, second side panel and front panel along fold lines; rectangular top panel being articulated to said rear panel along a fold line extending substantially parallel to the foldable connection between said rear panel and its respective bottom flap; front flap articulated to said top panel along a fold line extending substantially parallel to the foldable connection of said top and rear panels; a locking flap connected to said front flap, said locking flap including at least one locking edge spaced from said top panel a distance substantially equal to the distance between the top edge and the locking cut line in said front panel, said front flap including a locking tab defined by at least one cut line extending convexly toward said top panel, and being disposed such that the distance between said locking tab and said top panel is less than the distance between the top edge of said front panel and the aperture therein; first and second pairs of generally triangular corner connecting panels foldably connected to said top panel and said first and second side panels respectively, the triangular corner connecting panels in each said pair being articulated to one another along fold lines which intersect the foldable connections of said rear panel to said top panel and each including a locking protrusion extending from the portion of said first and second corner connecting panels adjacent the first and second side panels respectively; and a pair of locking cut lines extending toward one another from the opposed ends of the foldable connection between said top panel and said front flap.

Claim 3

Dependent Claim 270 words

A paperboard blank for forming a double lock carton, said blank comprising: rectangular first side panel, rectangular rear panel, rectangular second side panel and rectangular front panel consecutively articulated to one another along parallel fold lines, said front panel including a top edge extending generally perpendicular to the fold line between said second side panel and said front panel, at least one locking cut line extending through said front panel and an aperture disposed in said front panel intermediate said cut line and said top edge; bottom flaps articulated respectively to said first side panel, rear panel, second side panel and front panel along fold lines; rectangular top panel being articulated to said rear panel along a fold line extending substantially parallel to the foldable connection between said rear panel and its respective bottom flap; front flap articulated to said top panel along a fold line extending substantially parallel to the foldable connection of said top and rear panels; and a locking flap connected to said front flap, said locking flap including at least one locking edge formed by a cut line parallel to the locking cut line in said front panel and spaced from said top panel a distance substantially equal to the distance between the top edge and the locking cut line in said front panel, said front flap including a locking tab defined by at least one cut line extending convexly toward said top panel, and being disposed such that the distance between said locking tab and said top panel is less than the distance between the top edge of said front panel and the aperture therein.

Claim 4

Dependent Claim 270 words

A paperboard blank for forming a double lock carton, said blank comprising: rectangular first side panel, rectangular rear panel, rectangular second side panel and rectangular front panel consecutively articulated to one another along parallel fold lines, said front panel including a top edge extending generally perpendicular to the fold line between said second side panel and said front panel, at least one locking cut line extending through said front panel and an aperture disposed in said front panel intermediate said cut line and said top edge; bottom flaps articulated respectively to said first side panel, rear panel, second side panel and front panel along fold lines; rectangular top panel being articulated to said rear panel along a fold line extending substantially parallel to the foldable connection between said rear panel and its respective bottom flap; front flap articulated to said top panel along a fold line extending substantially parallel to the foldable connection of said top and rear panels; and a locking flap connected to said front flap, said locking flap including at least one locking edge formed by a cut line parallel to the locking cut line in said front panel and spaced from said top panel a distance substantially equal to the distance between the top edge and the locking cut line in said front panel, said front flap including a locking tab defined by at least one cut line extending convexly toward said top panel, and being disposed such that the distance between said locking tab and said top panel is less than the distance between the top edge of said front panel and the aperture therein.

Claim 5

Dependent Claim 23 words

A blank as in claim 2 wherein the locking cut line in said front panel is substantially parallel to the top edge thereof.

Claim 6

Dependent Claim 36 words

A blank as in claim 3 wherein the aperture in said front panel is generally rectangular, with a portion of the locking cut line in said front panel defining an edge of the rectangular aperture therein.

Claim 7

Dependent Claim 24 words

A blank as in claim 2 further including a connecting flap articulated to both said front flap and said locking flap and extending therebetween.

Claim 8

Dependent Claim 26 words

A blank as in claim 5 wherein the articulation between said front flap and said connecting flap defines a line of alternating cut and score lines.

Claim 9

Dependent Claim 61 words

A blank as in claim 2 including first and second pairs of generally triangular corner connecting panels foldably connected to said top panel and said first and second side panels respectively, the triangular corner connecting panels in each said pair being articulated to one another along fold lines which intersect the foldable connections of said rear panel to said top panel.

Claim 10

Dependent Claim 46 words

A blank as in claim 7 wherein the triangular corner connecting panels articulated respectively to said first and second side panels each includes a locking protrusion extending from the portion of said first and second corner connecting panels adjacent the first and second side panels respectively.

Claim 11

Dependent Claim 27 words

A blank as in claim 6 including a pair of locking edges extending collinearly from opposed ends of the foldable connection between the locking and connecting flaps.

Claim 12

Dependent Claim 47 words

A blank as in claim 4 wherein the distance between the locking cut line in said front panel and the edge of said aperture opposite the locking cut line is substantially equal to the distance between the locking tab and the locking edge of said locking flap.

Claim 13

Dependent Claim 230 words

A double locked carton formed from a single sheet of paperboard material, said carton comprising: first and second generally rectangular side walls disposed in spaced parallel relationship; generally rectangular front and rear walls foldably connected to and extending between said first and second side walls respectively; generally rectangular top and bottom walls disposed in spaced parallel relationship and extending between said side walls and said front and rear walls, said top wall being articulated to said rear wall; said front wall being characterized by a locking cut line and an aperture formed intermediate said locking cut line and said top wall; a front flap articulated to said top wall and disposed in face-to-face contact with at least a portion of the front wall extending between said top wall and the locking cut line in said front wall, said front flap including a locking tab extending through the aperture in said front wall such that at least a portion of said locking tab is disposed in said carton and adjacent the portion of said front wall intermediate the aperture therein and the top wall of the carton; and a locking flap connected to said front flap, said locking flap being disposed within said carton adjacent the locking cut line in said front wall and having a locking edge substantially parallel to and engaging the locking cut line in said front wall.

Claim 14

Dependent Claim 230 words

A double locked carton formed from a single sheet of paperboard material, said carton comprising: first and second generally rectangular side walls disposed in spaced parallel relationship; generally rectangular front and rear walls foldably connected to and extending between said first and second side walls respectively; generally rectangular top and bottom walls disposed in spaced parallel relationship and extending between said side walls and said front and rear walls, said top wall being articulated to said rear wall; said front wall being characterized by a locking cut line and an aperture formed intermediate said locking cut line and said top wall; a front flap articulated to said top wall and disposed in face-to-face contact with at least a portion of the front wall extending between said top wall and the locking cut line in said front wall, said front flap including a locking tab extending through the aperture in said front wall such that at least a portion of said locking tab is disposed in said carton and adjacent the portion of said front wall intermediate the aperture therein and the top wall of the carton; and a locking flap connected to said front flap, said locking flap being disposed within said carton adjacent the locking cut line in said front wall and having a locking edge substantially parallel to and engaging the locking cut line in said front wall.

Claim 15

Dependent Claim 21 words

A carton as in claim 11 wherein the aperture in said front wall is disposed adjacent the locking cut line therein.

Claim 16

Dependent Claim 28 words

A carton as in claim 11 wherein the locking cut line in said front wall is disposed substantially parallel to the top and bottom walls of the carton.

Claim 17

Dependent Claim 16 words

A carton as in claim 11 wherein the aperture in said front wall is generally rectangular.

Claim 18

Dependent Claim 53 words

A carton as in claim 11 wherein said locking cut line in said front wall comprises a pair of colinear locking cut line segments extending in opposite directions from said aperture and wherein said locking edge on said locking flap includes a pair of colinear locking edge segments engaging the locking cut lines.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-08-25	1990-02-24	1990-08-26	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-08-25	1994-02-24	1994-08-26	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-08-25	1998-02-24	1998-08-26	$7700.00	Window Closed / Lapsed

Double insert lock carton and blank therefor

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