# US 2019/0300256 A1 · Carton and blank therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0300256 A1 - Document ID: US20190300256A1 - Status: Published application - Kind: A1 - Application number: 16/302,319 - Filed: 2018-05-26 - Published: 2019-10-03 - Earliest claimed: 2016-06-01 - Applicants: WestRock Packaging Systems, LLC - Inventors: Caleb S. Loftin - Web page: https://patentgrep.com/patent/US20190300256A1 ## CPC - B65D 71/36: {having a tubular shape, e.g. tubular wrappers, with} end walls - B31B 50/26: Folding sheets, blanks or webs - B65D 5/6605: {the lid being formed by two mating halves joined to opposite edges of the container body} - B31B 50/624: {Applying glue on blanks} - B31B 50/68: by stitching, stapling or riveting - B31B 50/86: Forming integral handles; Attaching separate handles - B31B 2100/0022: {made from tubular webs or blanks, including by tube or bottom forming operations} - B31B 2120/302: {collapsible into a flat condition} - B65D 2571/00141: glued - B65D 2571/00172: by tabs cut within one end and facing towards the other end when blank is unfolded, and co-operting with openings at the other end - B65D 2571/00444: for fingers - B65D 2571/0066: formed from one single sheet - B65D 2571/00728: the end walls being closed by gluing - B65D 2571/00753: the end walls being closed by interlocking - B65D 2571/00783: the end walls forming the bottom or upper wall - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B) ## Abstract A carton includes a tubular structure having a plurality of outer walls defining an interior volume for receiving one or more articles. The carton includes a major end closure flap hinged to a first outer wall and a minor end closure flap hinged to a second outer wall. The minor end closure flap at least partially overlies the major end closure flap. The carton has an automatically erecting article-retaining structure hingedly connected to the major and minor end closure flaps. ## Claims ### Claim 1 A carton for packaging one or more articles comprising: a tubular structure having a plurality of outer walls defining an interior volume for receiving one or more articles, the plurality of outer walls including first and second outer walls; and a plurality of end closure flaps for at least partially closing an open end of the tubular structure, the plurality of end closure flaps including first major and first minor end closure flaps, wherein the first major end closure flap is hinged to the first outer wall so as to be hingedly movable between an opened position where the first major end closure flap lies generally in a plane of the first outer wall and a closed position where the first major end closure flap at least partially closes the open end, wherein the first minor end closure flap is hinged to the second outer wall so as to be hingedly movable between an opened position where the first minor end closure flap lies generally in a plane of the second outer wall and a closed position where the first minor end closure flap at least partially closes the open end, the second outer wall being disposed adjacent to the first outer wall, wherein the first minor end closure flap is coupled to the first major end closure flap such that the first minor end closure flap moves from the opened position thereof toward the closed position thereof in response to movement of the first major end closure flap from the opened position thereof to the closed position thereof, wherein the first minor end closure flap at least partially overlies the first major end closure flap when the first major end closure flap is in the closed position thereof, and wherein the first major end closure flap is greater in a length dimension than the first minor end closure flap, the length dimension of the first major and first minor end closure flaps being defined by the maximum distance between a free end of a respective one of the first major and first minor end closure flaps and a hinged connection between said respective one of the first major and first minor end closure flaps and the respective one of the plurality of outer walls to which said respective one of the first major and first minor end closure flaps is hinged such that a portion of the first major end closure flap extends proud of the first minor end closure flap when the first major and the first minor end closure flap are each in the opened position. ### Claim 2 (depends on 1) A carton according to claim 1 wherein the plurality of outer walls further includes a third outer wall, wherein the plurality of end closure flaps further includes a second major end closure flap hinged to the third outer wall so as to be hingedly movable between an opened position where the second major end closure flap lies generally in a plane of the third outer wall and a closed position where the second major end closure flap at least partially closes the open end, the third outer wall being disposed adjacent to the second outer wall, the second major end closure flap overlying the first major and first minor end closure flaps when the first major, first minor and second major end closure flaps are in the closed positions respectively, such that the first minor end closure flap is disposed between the first and second major end closure flaps. ### Claim 3 (depends on 2) A carton according to claim 2 wherein the plurality of outer walls further includes a fourth outer wall, wherein the plurality of end closure flaps further includes a second minor end closure flap hinged to the fourth outer wall so as to be hingedly movable between an opened position where the second minor end closure flap lies generally in a plane of the fourth outer wall and a closed position where the second minor end closure flap at least partially closes the open end, the fourth outer wall being disposed adjacent to the first and third outer walls, wherein the second minor end closure flap is coupled to the first major end closure flap such that the second minor end closure flap moves from the opened position thereof toward the closed position thereof in response to movement of the first major end closure flap from the opened position thereof to the closed position thereof, and wherein the second minor end closure flap at least partially overlies the first major end closure flap when the first major end closure flap is in the closed position thereof and wherein second major end closure flap overlies the second minor end closure flap when the second major and second minor end closure flaps are in the closed positions respectively, such that the second minor end closure flap is disposed between the first and second major end closure flaps. ### Claim 4 (depends on 1) A carton according to claim 1 wherein the first major end closure flap comprises a first portion proximate a hinged connection between the first major end closure flap and the first outer wall and a second portion distal from the hinged connection, wherein the first portion comprises a first width dimension and the second portion comprises a second width dimension, the first width dimension being substantially equal to a width dimension of the first outer wall, and wherein the second width dimension is less than the width dimension of the first outer wall. ### Claim 5 (depends on 1) A carton according to claim 1 wherein the first minor end closure flap is coupled to the first major end closure flap by a first web panel. ### Claim 6 (depends on 3) A carton according to claim 3 wherein the second minor end closure flap is coupled to the first major end closure flap by a second web panel. ### Claim 7 (depends on 5) A carton according to claim 5 wherein a first web panel is hingedly connected to the first minor end closure flap and is hingedly connected to a first portion of the first major end closure flap, the first portion being proximate a hinged connection between the first major end closure flap and the first outer wall. ### Claim 8 (depends on 6) A carton according to claim 6 wherein second web panel is hingedly connected to the second minor end closure flap and is hingedly connected to a first portion of the first major end closure flap, the first portion being proximate a hinged connection between the first major end closure flap and the first outer wall. ### Claim 9 (depends on 5) A carton according to claim 5 wherein the first minor end closure flap comprises a first cutaway defining a chamfered edge thereof, and wherein the first cutaway is provided at a first end of the first minor end closure flap, the first end opposing a second end of the first minor end closure flap to which the first web panel is hinged. ### Claim 10 (depends on 6) A carton according to claim 6 wherein the second minor end closure flap comprises a second cutaway defining a chamfered edge thereof, and wherein the second cutaway is provided at a first end of the second minor end closure flap, the first end opposing a second end of the second minor end closure flap to which the second web panel is hinged. ### Claim 11 A blank for forming a carton, the blank comprising: a plurality of panels for providing outer walls of a tubular structure, the plurality of panels including first and second panels; and a plurality of end closure flaps for at least partially closing an open end of the tubular structure, the plurality of end closure flaps including first major and first minor end closure flaps, wherein the first major end closure flap is hinged to the first panel such that when the tubular structure is set up, the first major end closure flap is hingedly movable between an opened position where the first major end closure flap lies generally in a plane of the first panel and a closed position where the first major end closure flap at least partially closes the open end, wherein the first minor end closure flap is hinged to the second panel such that when the tubular structure is set up, the first minor end closure flap is hingedly movable between an opened position where the first minor end closure flap lies generally in a plane of the second panel and a closed position where the first minor end closure flap at least partially closes the open end, the second panel being disposed adjacent to the first panel, wherein the first minor end closure flap is coupled to the first major end closure flap such that the first minor end closure flap moves from the opened position thereof toward the closed position thereof in response to movement of the first major end closure flap from the opened position thereof to the closed position thereof, wherein the first minor end closure flap at least partially overlies the first major end closure flap when the first major end closure flap is in the closed position, and wherein the first major end closure flap comprises a first length dimension, the first length dimension being defined by the maximum distance between a free end of the first major end closure flap and a hinged connection between the first major end closure flap and the first panel and wherein the first minor end closure flap comprises a second length dimension, the second length dimension being defined by the maximum distance between a free end of the first minor end closure flap and a hinged connection between the first minor end closure flap and the second panel, the first length dimension being greater than the second length dimension such that a portion of the first major end closure flap extends proud from the first minor end closure flap. ### Claim 12 A method of forming a carton, the carton comprising: a tubular structure having a plurality of outer walls defining an interior volume for receiving one or more articles, the plurality of outer walls including first and second outer walls; and a plurality of end closure flaps for at least partially closing an open end of the tubular structure, the plurality of end closure flaps including first major and first minor end closure flaps, wherein the first major end closure flap is hinged to the first outer wall so as to be hingedly movable between an opened position where the first major end closure flap lies generally in a plane of the first outer wall and a closed position where the first major end closure flap at least partially closes the open end, wherein the first minor end closure flap is hinged to the second outer wall so as to be hingedly movable between an opened position where the first minor end closure flap lies generally in a plane of the second outer wall and a closed position where the first minor end closure flap at least partially closes the open end, the second outer wall being disposed adjacent to the first outer wall, wherein the first minor end closure flap is coupled to the first major end closure flap, and wherein the first major end closure flap comprises a first length dimension, the first length dimension being defined by the maximum distance between a free end of the first major end closure flap and a hinged connection between the first major end closure flap and the first panel and wherein the first minor end closure flap comprises a second length dimension, the second length dimension being defined by the maximum distance between a free end of the first minor end closure flap and a hinged connection between the first minor end closure flap and the second panel, the first length dimension being greater than the second length dimension such that a portion of the first major end closure flap extends proud from the first minor end closure flap, the method comprising the steps of: engaging the portion of the first major end closure flap that extends proud from the first minor end closure flap, moving the first major end closure flap from the opened position thereof toward the closed position thereof; automatically moving the first minor end closure flap from the opened position thereof toward the closed position thereof in response to the moving step of the first major end closure flap such that the first minor end closure flap at least partially overlies the first major end closure flap when the first major end closure flap is moved to the closed position thereof. ### Claim 13 (depends on 12) A method according to claim 12, wherein the plurality of outer walls further includes a third outer wall, wherein the plurality of end closure flaps further includes a second major end closure flap hinged to the third outer wall so as to be hingedly movable between an opened position where the second major end closure flap lies generally in a plane of the third outer wall and a closed position where the second major end closure flap at least partially closes the open end, the third outer wall being disposed adjacent to the second outer wall, the method further comprising the step of hingedly moving the second major end closure flap from the opened position thereof to the closed position thereof such that second major end closure flap overlies the first major and first minor end closure flaps and such that the first minor end closure flap is disposed between the first and second major end closure flaps. ### Claim 14 A carton for packaging one or more articles comprising: a tubular structure having a plurality of outer walls defining an interior volume for receiving one or more articles, the plurality of outer walls including first, second and third outer walls; and a plurality of end closure flaps for at least partially closing an open end of the tubular structure, the plurality of end closure flaps including a first major, a second major and a first minor end closure flaps, wherein the first major end closure flap is hinged to the first outer wall so as to be hingedly movable between an opened position where the first major end closure flap lies generally in a plane of the first outer wall and a closed position where the first major end closure flap at least partially closes the open end, wherein the first minor end closure flap is hinged to the second outer wall so as to be hingedly movable between an opened position where the first minor end closure flap lies generally in a plane of the second outer wall and a closed position where the first minor end closure flap at least partially closes the open end, the second outer wall being disposed adjacent to the first outer wall, wherein the second major end closure flap is hinged to the third outer wall so as to be hingedly movable between an opened position where the second major end closure flap lies generally in a plane of the third outer wall and a closed position where the third major end closure flap at least partially closes the open end, wherein the first minor end closure flap is coupled to the first major end closure flap such that the first minor end closure flap moves from the opened position thereof toward the closed position thereof in response to movement of the first major end closure flap from the opened position thereof to the closed position thereof, wherein the first minor end closure flap at least partially overlies the first major end closure flap when the first major end closure flap is in the closed position thereof, and wherein the first minor end closure flap partially overlies the first major end closure flap and the second major end closure flap overlies at least a portion of both the first major and first minor end closure flaps such that the second major end closure flap is secured directly to each of the first major and first minor end closure flaps.