WO2023067508A1 - Food and beverage can tab - Google Patents
Food and beverage can tab Download PDFInfo
- Publication number
- WO2023067508A1 WO2023067508A1 PCT/IB2022/060014 IB2022060014W WO2023067508A1 WO 2023067508 A1 WO2023067508 A1 WO 2023067508A1 IB 2022060014 W IB2022060014 W IB 2022060014W WO 2023067508 A1 WO2023067508 A1 WO 2023067508A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tab
- edge
- handle
- container
- curl
- Prior art date
Links
- 235000013361 beverage Nutrition 0.000 title abstract description 20
- 238000000034 method Methods 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 11
- 230000007704 transition Effects 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 239000000969 carrier Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 10
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/34—Arrangement or construction of pull or lift tabs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/02—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions of curved cross-section, e.g. cans of circular or elliptical cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
- B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/001—Action for opening container
- B65D2517/0016—Action for opening container pivot tab, push-down and pull-out tear panel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/0058—Other details of container end panel
- B65D2517/0059—General cross-sectional shape of container end panel
- B65D2517/0061—U-shaped
- B65D2517/0062—U-shaped and provided with an additional U-shaped peripheral channel
Definitions
- the present technology relates to tabs for opening beverage and food cans. More specifically, the present technology relates to tab designs that facilitate safer and easier opening of beverage and food cans.
- Food and beverage cans often include graspable tabs that enable users to quickly and easily open the cans without the need for a can opener or other tool.
- Conventional tabs include a handle or other graspable feature that is formed by bending exposed edges of a metallic material toward one another to provide a smooth upper and peripheral surface. The exposed edges are positioned on a lower surface of the tab, with a gap formed between opposing edges of the handle. These edges may be sharp and may pose a risk of cuts or other injuries as a user positions his or her finger underneath the handle and applies an upward and/or rearward force to puncture the can and/or remove the lid from the can. Therefore, improvements in tabs for food and beverage cans are desired.
- the tabs include a tab body having a nose, a handle, at least one tab carrier, and a medial portion that extends between and couples the nose and the handle.
- the at least one tab carrier is positioned flush with or inset relative to a main body of the handle.
- the handle may define a central opening.
- the handle may include an outer curl having a first edge that is folded along a bottom surface of the tab body and that is directed toward the medial portion.
- the handle may include an inner curl extending from the central opening.
- the inner curl may include a second edge that is folded along the bottom surface of the tab body and that is directed away from the medial portion.
- a distance between the first edge and the second edge may be less than 0.5 mm, e.g., less than 0.4 mm, less than 0.3 mm, less than 0.2 mm, or less than 0.1 mm. In terms of ranges, the distance between the first edge and the second edge may range from 0.01 mm to 0.5 mm, e.g., from 0.1 to 0.4 mm, from 0.1 to 0.3 mm or from 0.1 to 0.2 mm.
- the first edge may contact the second edge.
- the second edge may overlap the first edge, or the first edge may overlap the second edge.
- At least a portion of one or both of the first edge and the second edge may be pressed against a bottom surface of a main portion of the handle.
- the tab body may include a longitudinal axis. A portion of one or both of the first edge and the second edge may be pressed against a bottom surface of a main portion of the handle such that an inner region of the handle proximate the longitudinal axis is thinner than an outer region of the handle outward of the inner region relative to the longitudinal axis.
- Some embodiments of the present technology may encompass tabs for a food or beverage can.
- the tabs may include a tab body comprising a nose, a handle, and a medial portion that extends between and couples the nose and the handle.
- the handle may define a central opening.
- the handle may include an outer curl having a first edge that is folded along a bottom surface of the tab body and that is directed toward the medial portion.
- the handle may include an inner curl extending from the central opening.
- the inner curl may include a second edge that is folded along the bottom surface of the tab body and that is directed away from the medial portion. The second edge may overlap the second edge.
- first edge and the second edge may be pressed against a bottom surface of a main portion of the handle.
- the tab body may include a longitudinal axis. A portion of one or both of the first edge and the second edge may be pressed against a bottom surface of a main portion of the handle such that an inner region of the handle proximate the longitudinal axis is thinner than an outer region of the handle outward of the inner region relative to the longitudinal axis.
- the tab may not include any portion of a tab carrier.
- the cans may include a can body.
- the cans may include a lid coupled with the can body.
- the cans may include a tab coupled with the lid.
- the tab may be configured to open the lid.
- the tab may include a tab body having a nose, a handle, and a medial portion that extends between and couples the nose and the handle.
- the handle may define a central opening.
- the handle may include an outer curl having a first edge that is folded along a bottom surface of the tab body and that is directed toward the medial portion.
- the handle may include an inner curl extending from the central opening.
- the inner curl may include a second edge that is folded along the bottom surface of the tab body and that is directed away from the medial portion.
- a distance between the first edge and the second edge may be less than about 0.5 mm.
- the lid may include a center panel.
- the lid may include a peripheral curl coupled with a rim of the can.
- the lid may include a chuck wall disposed between the center panel and the peripheral curl.
- the chuck wall may include a substantially horizontal portion.
- the substantially horizontal portion may be positioned less than 4 mm, e.g., less than 3 mm, less than 2 mm or less than 1 mm, below a top surface of the peripheral curl.
- the substantially horizontal portion may be oriented within 30 degrees, e.g., within 20 degrees, or within 10 degrees, relative to the center panel.
- the chuck wall may include a substantially vertical portion that is disposed above the substantially horizontal portion. A transition between the substantially vertical portion and the substantially horizontal portion may have a radius of between 0.75 mm and 1.25 mm, e.g., between 0.85 and 1.15 mm.
- Some embodiments of the present technology may encompass methods of forming a tab for a container.
- the methods may include punching a tab body into a sheet of metal material.
- the tab body may include a nose, a handle, and a medial portion that extends between and couples the nose and the handle.
- the handle may define a central opening.
- the methods may include forming an outer curl about the handle.
- the outer curl may have a first edge that is folded along a bottom surface of the tab body and that is directed toward the medial portion.
- the methods may include forming an inner curl about the handle.
- the inner curl may extend from the central opening and may include a second edge that is folded along the bottom surface of the tab body and that is directed away from the medial portion.
- the methods may include pressing the first edge and the second edge together such that the first edge and the second edge are separated by a distance of less than 0.5 mm.
- the methods may include moving at least one tab carrier inward such that the at least one tab carrier is flush with or inset relative to a main body of the handle.
- the methods may include removing at least a portion of at least one tab carrier from the handle.
- the removing the at least a portion of the at least one tab carrier may include one or more selected from the group consisting of trimming the at least a portion of the at least one tab carrier, filing the at least a portion of the at least one tab carrier, and sanding the at least a portion of the at least one tab carrier.
- FIG. 1A illustrates a schematic bottom plan view of a tab for a food or beverage can according to embodiments of the present invention.
- FIG. IB illustrates a bottom plan view of a tab for a food or beverage can according to embodiments of the present invention.
- FIG. 2 illustrates a partial cross-sectional side elevation view of a lid for sealing a food or beverage can according to embodiments of the present invention.
- FIG. 3 illustrates an isometric view of a food or beverage can according to embodiments of the present invention.
- FIG. 4 illustrates a partial bottom isometric view of prior art tab.
- FIG. 5 illustrates a partial bottom isometric view of a tab according to embodiments of the present invention.
- Embodiments of the present invention are directed to tabs for opening containers such as food and beverage cans.
- the tabs may include handles that pose little to no injury risk, as exposed edges of the metallic material in at least an inner region of the handle of the tab are pressed close together, touching, and/or overlapping to reduce the ability of a user’s finger being cut on an exposed edge of the tab.
- Embodiments may include tabs for beverage cans in which a user lifts the handle of the tab to push on a region of a lid having a perforation and/or weakened perimeter to push the region into the inner region of the can to create an opening in the lid through which the beverage may be poured or drank.
- Embodiments may also be utilized in food and/or beverage cans, such as “easy open” (EZO) cans in which the tab is used to puncture the lid near a rim of the can, with the user then pulling the tab backwards to partially or fully remove the lid from the can.
- EZO easy open
- cans in which the tab is used to puncture the lid near a rim of the can, with the user then pulling the tab backwards to partially or fully remove the lid from the can.
- tab 100 includes a body that is formed of a metallic material, such as aluminum, tin, steel, and/or other metal.
- the body of tab 100 includes a nose 102 and a handle 104, with a medial portion 106 that extends between and couples the nose 102 and the handle 104.
- the body of tab 100 includes a longitudinal axis L that extends through the nose 102, handle 104, and medial portion 106.
- nose 102 includes an optional apex 108 that is used to puncture and/or otherwise open a lid of a can on which the tab 100 is mounted.
- Nose 102 may further define an opening 110 that may receive a rivet and/or other fastening mechanism that is used to secure the tab 100 to the lid of a container.
- the nose 102 and apex 108 may be at a proximal end of tab 100 and handle 108 may be at a distal end of tab 100.
- Handle 104 and/or medial portion 106 may define a central opening 112, which may help a user better grasp the handle 104.
- Central opening 112 may have a generally circular shape as shown here, or may have any other shape, such as an oval, oblong, or other shape.
- the central opening 112 may be sufficiently large that a user may position his or her finger through the central opening 112 to make it easier to apply sufficient force to remove the lid from the can.
- Some or all of the edge of the material used to form the tab 100 may be bent, folded, and/or otherwise curved onto itself such that some or all of the outer periphery of the central opening 112 may have a rounded edge.
- the central opening 112 may be formed using a punch or other machining device that forms a hole in a sheet of metallic material. Edges defining the hole may be bent to an underside of the tab 100 to form an inner curl 114 that includes rounded edges defining central opening 112, while safely positioning the cut edges 116 folded along a bottom surface of the tab 100. A portion of the cut edges 116 proximate the distal end of tab 100 may be directed away from the medial portion 106 and generally toward the distal end of tab 100.
- tab 100 also includes one or more outer curls 118, which may extend about all or part of the outer periphery of the body of tab 100. As illustrated, outer curl 118 extends about an entirety of the outer periphery of tab 100 except where tab carriers 120 (which secure the tab 100 to a sheet of metal material during the manufacturing process) are formed. Outer curl 118 may include bent, folded, and/or otherwise curved outer edges that define the outer periphery of all or part of tab 100, including handle 104. A portion of outer curl 118 that includes the handle 104 (such as between tab carriers 120) may include an cut edge 122 that is directed generally toward the medial portion 106.
- a distance between the cut edges 116 and 122 may be reduced, particularly in the region of the distal end of the tab 100.
- a distance between cut edges 116 and 122 in the region of the distal end of tab 100 may be less than or 0.5 mm, less than or 0.4 mm, less than or 0.3 mm, less than or about 0.2 mm, less than or 0.1 mm, less than or 0.05 mm, less than or 0.025 mm, less than or 0.01 mm, less than or 0.005 mm, or less.
- the distance between cut edges 116 and 112 may range from 0.01 mm to 0.5 mm, e.g., from 0.1 to 0.4 mm, from 0.1 to 0.3 mm or from 0.1 to 0.2 mm.
- cut edges 116 and 122 proximate the distal end of tab 100 may contact one another so as to completely eliminate any gap between cut edges 116 and 122 in that region of handle 104.
- cut edge 116 may overlap cut edge 122 in the region proximate handle 104, which may prevent cut edge 122 from being in contact with a user’s finger and may help reduce or eliminate the risk of being cut.
- the reduced distance between cut edges 116 and 122 may extend about all, or substantially all of handle 104 in some embodiments. In other embodiments, only the region proximate the distal end of tab 100 may have a reduced distance between cut edges 116 and 122.
- handle 104 may include an inner region 124 proximate longitudinal axis L (which may extend through inner region 124) and an outer region 126 that is outward of inner region 124 relative to longitudinal axis L. Inner region 124 may include the reduced distance between cut edges 116 and 122. Inner region 124 may extend between tab carriers 120 in some embodiments, while in other embodiments inner region 124 may include only a portion of handle 104 that is between tab carriers 120.
- inner region 124 may include a central 30%, 40%, 50%, 60%, 70%, 80%, 90%, etc. of the region between tab carriers 120. In terms of ranges, inner region 124 may include between 30% and 90% of the centermost portion of the region between tab carriers 120, e.g., e.g., from 40% to 80%, from 50% to 70%, or 55% to 65%. Inner region 124 may include the reduced distance between cut edges 116 and 122, while outer region 126 may have greater distances between cut edges 116 and 122 than inner region 124.
- the portions of cut edges 116 and 122 within inner region 124 may be flattened and/or otherwise pressed against a main portion 128 of handle 104, which may reduce the thickness of inner region 124 and may prevent cut edges 116 and 122 from being raised sufficiently relative to main portion 128 of handle 104 to pose a significant risk of cutting an individual.
- Inner region 124 may be thinner than outer region 126.
- inner region 124 may be formed by crimping, pressing, and/or otherwise flattening cut edges 116 and 122 against a bottom surface of main portion 128 of handle 104, which may not only reduce the thickness of inner region 124 but may also reduce the distance between cut edges 116 and 122 within inner region 124.
- Tab 100 may be formed by punching, die cutting, machining and/or otherwise forming the body of tab into a sheet of metal material. This may be performed over several different steps. For example, a general tab shaped periphery may be stamped or punched to the sheet of metal material, opening 110 and/or center opening 112 may be cut into the body, and/or other features may be formed in one or more steps. Outer curl 118 may be formed about handle 104 by bending, folding, and/or otherwise curving cut edge 122 to be positioned below a bottom surface of main portion 128 of handle 104.
- Inner curl 114 may be formed about handle 104 by bending, folding, and/or otherwise curving cut edge 116 to be positioned below a bottom surface of main portion 128 of handle 104.
- the cut edges 116 and 122 may be pressed together such that the edges 116 and 122 are separated by the reduced distance of less than 0.5 mm as described above. Pressing cut edges 116 and 122 together may include applying compressive force between the rounded edges of inner curl 114 and outer curl 118 within inner region 124 and/or between a top surface of handle 104 and a bottom surface of handle 104 within inner region 124.
- a conventional tab 400 includes one more tab carriers 420 that are used to secure tab 400 to a sheet of metal material during the manufacturing process. Once tab 400 is removed from the sheet of metal material, such as by trimming tab carrier 420, a portion of tab carrier 420 may remain attached to tab 400. As illustrated tab carrier 420 protrudes upward from the main surface of tab 400, such as a surface of a handle 404 of tab 400. Exposed edges 440 of the raised portion of tab carrier 420 may present a cutting hazard to users who grasp handle 404 to open a can or other container.
- FIG. 5 illustrates a tab 500, which may be similar to tab 100 described above and may be understood to include any feature of tab 100 as described herein.
- Tab 500 may include a number of tab carriers 520.
- tab carriers 520 may be bent, curled, and/or otherwise moved inward relative to a main body 550 of a handle 504 of tab 500. For example, tab carriers 520 may be moved to a position in which each tab carrier 520 is flush with main body 550 and/or inset relative to main body 550.
- tab carrier 520 may be positioned such that edges of tab carrier 520 are not in contact with a user’s finger as the user opens a can or other container and may improve the safety of tab 500.
- all or a portion of tab carriers 520 may be removed.
- each tab carrier 520 may be trimmed, filed, and/or otherwise removed. In some embodiments, only a portion of each tab carrier 520 is removed, such that a portion of tab carrier 520 remains.
- tab carrier 520 may be between 10% and 75% of tab carrier 520, between 20% and 50%, or between 25% and 40%. Oftentimes, the remaining portion of tab carrier 520 may then be bent, curled, and/or otherwise moved inward to be flush with and/or inset relative to main body 550. In other embodiments, each tab carrier 520 may be removed proximate a base 521 of the respective tab carrier 520. For example tab carrier 520 may be trimmed, filed, and/or otherwise removed such that less than 10%, less than 5%, less than 3%, less than 1%, and/or no portion of tab carrier 520 remains.
- tab carrier 520 may then be bent, curled, and/or otherwise moved inward to be flush with and/or inset relative to main body 550.
- an edge of the remaining portion (or exposed edge that remains after removing all of tab carrier 520) may be filed, sanded, and/or otherwise smoothed to further reduce the risk of injury to users.
- a user may have trouble opening a can using a tab, such as tab 100 and may instead try to open the can using a can opener.
- lids of cans such as EZO cans
- FIG. 2 illustrates a partial cross-sectional view of a lid 200 that may enable a can opener to open the lid.
- Lid 200 may be affixed to a can or other container, such as an EZO can, and may in some embodiments include a tab, such as tab 100 or 500.
- Lid 200 may include a center panel 202 that is generally flat and is designed to cover a substantial amount of an opening of a can (not shown). Lid 200 may also include a peripheral curl 204 that is designed to be coupled with a rim of the can to secure lid 200 and can together. Disposed between center panel 202 and peripheral curl 204 may be a chuck wall 206. As used in herein, “chuck wall” is understood to refer to a portion of lid 200 located between a countersink region 216 and peripheral curl 204 and which is contacted by or engaged with a chuck during a seaming operation of a manufacturing process. Chuck wall 206 may include a substantially vertical portion 208 and a substantially horizontal portion 210.
- Substantially vertical portion 208 may be within 15 degrees of vertical (such as relative to an angle that is generally orthogonal to the center panel 202), within 10 degrees of vertical, within 5 degrees of vertical, or less. In terms of ranges, the angle of substantially vertical portion 208 may range from 0 degrees and 15 degrees of vertical, e.g., from 1 degree to 12 degrees or from 5 degrees to 8 degrees. Substantially vertical portion 208 may be linear and/or may have a contour. Substantially horizontal portion 210 may have an angle 0 within 30 degrees of horizontal (such as relative to the center panel 202), within 25 degrees of horizontal, within 20 degrees of horizontal, within 15 degrees of horizontal, within 10 degrees of horizontal, within 5 degrees of horizontal, or less.
- Substantially horizontal portion 210 may be linear and/or may have a contour.
- Substantially vertical portion 208 may be coupled with peripheral curl 204, such as via a first transition radius 212.
- First transition radius 212 may be between about 0.75 mm and 1.25 mm, e.g., from 0.85 mm to 1.15 mm, or from 0.95 mm to 1.05 mm.
- Chuck wall 206 may have a transition radius 214 between substantially vertical portion 208 and substantially horizontal portion 210. In some embodiments, transition radius 214 may be between about 0.75 mm and 1.25 mm.
- a vertical distance between substantially horizontal portion 210 and a top surface of peripheral curl 204 may be less than 4 mm, less than 3.75 mm, less than 3.5 mm, less than about 3.25 mm, less than 3 mm, less than 2.75 mm, or less. In terms of ranges, the vertical distance between substantially horizontal portion 210 and a top surface of peripheral curl 204 may range from 2.5 mm to 4 mm, e.g., from 2.75 mm to 3.75 mm, or from 3 mm to 3.5 mm. Such a vertical distance may be sufficiently small so as to enable a blade of a can opener to pierce substantially horizontal portion 210 to open the can.
- substantially horizontal portion 210 of chuck wall 206 may transition to a countersink region 216.
- a transition 218 between substantially horizontal portion 210 and countersink region 216 may have a radius 224 of between 0.65 mm and 1.15 mm, e.g., from 0.75 mm to 1.05 mm, or from 0.85 mm to 0.95 mm.
- Countersink region 216 may have a radius 226 of between 0.4 mm and 0.7 mm, e.g., from 0.45 mm to 0.65 mm, or from 0.5 mm to 0.6 mm.
- Countersink region 216 may include a transition 220 that extends to center panel 202.
- FIG. 3 illustrates a can 300 according to some embodiments of the present invention.
- can 300 includes a can body 302, which includes a cylindrical sidewall and a base.
- Can 300 includes an open interior, which may be used to store food, beverages, and/or other objects.
- a lid 304 may be positioned over the open interior to seal the contents of can 300.
- Lid 304 may be similar to lid 200 described above, or may be any other lid.
- Lid 304 includes a tab 306, which may be used to open the can 300.
- Tab 306 may any tab, such as tab 100 or 500 in some embodiments.
- a user may grasp a handle of tab 306 and pull the handle upward relative to lid 304 to puncture and/or otherwise push a portion of lid 304 downward.
- the user may lift the handle of the tab to push on a region of a lid having a perforation and/or weakened perimeter to push the region into the inner region of the can to create an opening in the lid through which the beverage may be poured or drank.
- the upward movement of the handle of tab 306 may fully open a drinking/pouring opening of lid 304.
- the user may need to pull tab 306 away from can body 302 to peel all or a portion of lid 304 off of can body 302 to access the contents of can 300.
- a list of “at least one of A, B, and C” includes any of the combinations A or B or C or AB or AC or BC and/or ABC (i.e., A and B and C).
- a list of “at least one of A, B, and C” may also include AA, AAB, AAA, BB, etc.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CA3235803A CA3235803A1 (en) | 2021-10-20 | 2022-10-18 | Food and beverage can tab |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US202163257931P | 2021-10-20 | 2021-10-20 | |
US63/257,931 | 2021-10-20 |
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WO2023067508A1 true WO2023067508A1 (en) | 2023-04-27 |
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PCT/IB2022/060014 WO2023067508A1 (en) | 2021-10-20 | 2022-10-18 | Food and beverage can tab |
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CA (1) | CA3235803A1 (en) |
WO (1) | WO2023067508A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3366270A (en) * | 1966-05-27 | 1968-01-30 | Continental Can Co | Pull tab for easy opening can end |
WO2003059764A1 (en) * | 1999-12-08 | 2003-07-24 | Nguyen Tuan A | Metallic beverage can end with improved chuck wall and countersink |
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2022
- 2022-10-18 WO PCT/IB2022/060014 patent/WO2023067508A1/en active Application Filing
- 2022-10-18 CA CA3235803A patent/CA3235803A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US3366270A (en) * | 1966-05-27 | 1968-01-30 | Continental Can Co | Pull tab for easy opening can end |
WO2003059764A1 (en) * | 1999-12-08 | 2003-07-24 | Nguyen Tuan A | Metallic beverage can end with improved chuck wall and countersink |
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