US20040140312A1 - Can lid closure and method of joining a can lid closure to a can body - Google Patents
Can lid closure and method of joining a can lid closure to a can body Download PDFInfo
- Publication number
- US20040140312A1 US20040140312A1 US10/752,928 US75292804A US2004140312A1 US 20040140312 A1 US20040140312 A1 US 20040140312A1 US 75292804 A US75292804 A US 75292804A US 2004140312 A1 US2004140312 A1 US 2004140312A1
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- US
- United States
- Prior art keywords
- chuckwall
- lid
- arcuate
- radially outward
- radius
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- 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
- B65D17/06—Integral, or permanently secured, end or side closures
- B65D17/08—Closures secured by folding or rolling and pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/30—Folding the circumferential seam
- B21D51/32—Folding the circumferential seam by rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
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- 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
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
- B65D21/0217—Containers with a closure presenting stacking elements
- B65D21/0222—Containers with a closure presenting stacking elements the closure and the bottom presenting co-operating peripheral ribs and grooves
-
- 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
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
- B65D7/34—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls
- B65D7/36—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls formed by rolling, or by rolling and pressing
-
- 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
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00027—Stackable lids or covers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
- Closures For Containers (AREA)
- Cartons (AREA)
Abstract
A preferred embodiment of the disclosed can lid has a center panel having a central axis that is perpendicular to a diameter of the outer rim, or peripheral curl portion, of the can lid, an annular countersink surrounding the center panel, an arcuate chuckwall extending radially outward from the annular countersink, an arcuate step portion extending radially outward from the arcuate chuckwall, a transitional portion extending radially outward from the arcuate step portion, and a peripheral curl portion extending outwardly from the transitional portion.
Description
- The present invention relates generally to metal containers, and more particularly to metal cans.
- Aluminum cans are used primarily as containers for retail sale of beverages in individual portions. Annual sales of such cans are in the billions and consequently, over the years, their design has been refined to reduce cost and improve performance. Other refinements have been made for ecological purposes, to improve reclamation and promote recycling.
- Cost reductions may be realized in material savings, scrap reduction and improved production rates. Performance improvements may be functional in nature, such as better sealing and higher ultimate pressure capacity. Such improvements can allow the use of thinner sheet metal, which leads directly to material cost reductions. Performance improvements may also be ergonomic in nature, such as a can end configured to allow for easier pull tab access or better lip contact.
- Aluminum cans are usually formed from a precoated aluminum alloy, such as the aluminum alloy 5182. The cans, which are typically made from relatively thin sheet metal, must be capable of withstanding pressures approaching 100 psi., with 90 psi being an industry recognized requirement. The cans are usually formed from a can body to which is joined a can lid or closure. Each of these components has certain specifications and requirements. For instance, the upper surface of the can lids must be configured to nest with the lower surface of the can bottoms so that the cans can be easily stacked one on top of the other. It is also desirable to have the can lids themselves nest with each other in a stacked arrangement for handling and shipping purposes prior to attaching the can lid to the can body. The ability to satisfy these functional requirements with the use of ever less material continues to develop.
- A prior art disclosure, published under the Patent Cooperation Treaty in International Publication Number WO 96/37414, discloses can lid design for reduced metal usage and improved pressure capability. This can lid comprises a peripheral portion or “curl,” a frustroconical chuckwall depending from the interior of the peripheral curl, an outwardly concave annular reinforcing bead or “countersink” extending radially inwards from the chuckwall, and a center panel supported by the inner portion of the countersink. The frustroconical chuckwall is inclined at an angle of between 20° and 60° with respect to an axis perpendicular to the center panel. A double seam is formed between this can end and a can body by a process wherein the peripheral curl is centered on the can body flange by a frustroconical/cylindrical chuck designed to fit into the frustroconical chuckwall of the can lid. The overlap of the peripheral curl on the lid with the can body flange is described to be by a conventional amount. Rotation of the can lid/can body, first against a seaming roll and then a flattening roll completes a double seam between the two parts. During the flattening operation, the portion of the chuckwall adjacent to the peripheral curl is bent to a cylindrical shape and flattened against the cylindrical surface of the chuck. The lid of International Publication Number WO 96/37414 incorporates known dimensions for the peripheral curl portion which is seamed to the can.
- The can lid disclosed in International Publication Number WO 96/37414 requires a greater amount of metal than the can lid of the present invention, thereby increasing the manufacturing costs. The increased metal usage in this prior art stems from a higher, or deeper, countersink, a larger peripheral curl portion than is disclosed in the present invention and the use of a frustroconical chuckwall that is characterized by a single angle with respect to an axis perpendicular to the central panel. The can lid disclosed in WO 96/37414 is also susceptible to increased metal deformation during seaming and failure at lower pressures.
- The present invention contemplates improved aluminum can lids combining a slanted chuckwall with a reduced seam. A preferred embodiment of the disclosed can lid has a center panel having a central axis that is perpendicular to a diameter of the outer rim of the can lid, an annular countersink extending radially outward from the center panel, an arcuate chuckwall extending radially outward from the annular countersink, a step portion, a transitional portion extending radially outward from the chuckwall, and a peripheral curl extending outwardly from the transitional portion. The step portion improves the consistency and integrity of a double seam formed between the can lid and the can body while the arcuate chuckwall improves the strength of the can lid as compared to a simple frustroconical chuckwall. These features reduce metal usage in manufacturing and are expected to reduce filled can failures, and allow the use of thinner sheet metal for the can lid.
- The accompanying drawings are incorporated into and form a part of the specification to assist in explaining the present inventions. The drawings are intended for illustrative purposes only and are not intended as exact representations of the embodiments of the present inventions. The drawings further illustrate preferred examples of how the inventions can be made and used and are not to be construed as limiting the inventions to only those examples illustrated and described. The various advantages and features of the present inventions will be apparent from a consideration of the drawings in which:
- FIG. 1 shows an elevational cross-sectional view of a can lid constructed in accordance with the invention;
- FIG. 2 shows an elevational cross-sectional view of a can lid constructed in accordance with the invention;
- FIG. 3 shows an elevational cross-sectional view of a can lid constructed in accordance with the invention;
- FIG. 4 shows an elevational cross-sectional view of a can lid on a can body before forming of a double seam;
- FIG. 5 shows an elevational cross-sectional view of a can lid on a can body as it appears during the first step of forming a double seam;
- FIG. 6 shows an elevational cross-sectional view of a can lid on a can body as it appears during the final step of forming a double seam;
- FIG. 7 shows an elevational cross-sectional view of the manner of stacking can lids constructed in accordance with the invention; and
- FIG. 8 shows an elevational cross-sectional view of the manner of stacking filled cans of the present inventions.
- The present inventions are described in the following text by reference to drawings of examples of how the inventions can be made and used. The drawings are for illustrative purposes only and are not exact scale representations of the embodiments of the present inventions. In these drawings, the same reference characters are used throughout the views to indicate like or corresponding parts. FIG. 1 illustrates one preferred embodiment of can
lid 10. The embodiments shown and described herein are exemplary. Many details are well known in the art, and as such are neither shown nor described. It is not claimed that all of the details, parts, elements, or steps described and shown were invented herein. Even though numerous characteristics and advantages of the present inventions have been described in the drawings and accompanying text, the description is illustrative only, and changes may be made, especially in matters of arrangement, shape and size of the parts, within the principles of the invention to the full extent indicated by the broad general meaning of the terms used in the claims. The dimensions provided in the description are tooling dimensions and the actual dimensions of can lids manufactured in accordance with the present invention may vary. - FIG. 1 is a cross-section view of a
can lid 10, illustrative of a preferred embodiment of the present inventions. Canlid 10 is preferably made from aluminum sheet metal. Typically, an aluminum alloy is used, such as aluminum alloy 5182. The sheet metal typically has a thickness of from about 0.080 to about 0.100 inches, more preferably from about 0.082 to about 0.094 inches, and still more preferably from about 0.084 to about 0.088 inches. The sheet metal may be coated with a coating (not shown) on at least one side. This coating is usually provided on that side of the sheet metal that will form the interior of the can. Can lids are usually formed in a multi-step operation. Those skilled in the art will be well acquainted with such methods of forming can lids to provide the configuration and geometry of thecan lid 10 as described herein. - The
can lid 10 has acenter panel 12. Thecenter panel 12 is generally circular in shape but may be intentionally noncircular. Thecenter panel 12 may have a diameter d1 of from about 1.5 to about 2 inches, more preferably from about 1.6 to about 1.9 inches, and still more preferably from about 1.7 to about 1.8 inches. Although thecenter panel 12 is shown as being flat, it may also have a peaked or domed configuration as well, and is not necessarily limited to the flat or planar configuration. Thecenter panel 12 has acentral axis 14 that is perpendicular to a diameter d2 of the outer rim, orperipheral curl portion 38, ofcan lid 10. The diameter d1 ofcenter panel 12 is preferably less than 80% of the diameter d2 of the outer rim, orperipheral curl portion 38, ofcan lid 10. - Surrounding the center panel is an
annular countersink 16 that is formed from aninterior wall 20 and anexterior wall 28, which are spaced apart and joined together by acurved bottom portion 24. The inner andouter walls bottom portion 24 being curved. The inner andouter walls central axis 14 but either or both may diverge by an angle of about as much as 15°. Theannular counter sink 16 is joined to thecenter panel 12 along the upper edge of theinterior wall 20. Thecurved juncture 18 joininginterior wall 20 and edge of thecenter panel 12 has a radius of curvature r1, that is from about 0.013 to about 0.017 inches, more preferably from about 0.014 to about 0.016 inches, and still more preferably from about 0.1425 to about 0.01525 inches, though this radius of curvature r1 is not considered critical. The center-point of radius of curvature r1 is located below the profile ofcan lid 10.Interior wall 20 is joined tobottom portion 24 bycurved juncture 22 having a radius of curvature r2. Radius of curvature r2 is from about 0.006 to about 0.018 inches, more preferably from about 0.009 to about 0.015 inches, and still more preferably from about 0.011 to about 0.013 inches, though radius of curvature r2 is not considered critical. The center-point of radius of curvature r2 is located above the profile ofcan lid 10.Bottom portion 24 is joined toouter wall 28 bycurved juncture 26, having a radius of curvature r3 that is from about 0.010 to about 0.022 inches, more preferably from about 0.012 to about 0.020 inches, and still more preferably from about 0.014 to about 0.018 inches. Radius of curvature r3 has a center-point located above the profile ofcan lid 10 and is also not considered critical. Theannular countersink 16 has a height h1 of from about 0.03 to about 0.115 inches, more preferably from about 0.05 to about 0.095 inches, and still more preferably from about 0.06 to about 0.085 inches. - The
annular countersink 16 is joined to chuckwall 132 bycurved juncture 30 having a radius of curvature r4 of from about 0.03 to about 0.07 inches, more preferably from about 0.035 to about 0.06 inches, and still more preferably from about 0.0375 to about 0.05 inches, though not considered critical. The center-point of radius of curvature r4 is located below the profile ofcan lid 10.Chuckwall 132 is shown as an arcuate chuckwall having a radius of curvature r5 that is from about 0.4 to about 1 inch, more preferably from about 0.520 to about 0.845 inches, still more preferably from about 0.620 to about 0.745 inches, and most preferably from about 0.670 to about 0.695 inches. The center-point of radius of curvature r5 is located below the profile ofcan lid 10. Thearcuate chuckwall 132 is such that a line passing through the innermost end ofarcuate chuckwall 132, near the terminus ofcurved juncture 30, and the outermost end of thearcuate chuckwall 132, near the beginning ofstep portion 34, forms an acute angle with respect tocentral axis 14 of thecenter panel 12. This acute angle is from about 20° to about 80°, and more preferably from about 30° to about 60°, and still more preferably from about 40° to about 50°. - The
step portion 34 extends radially outward from thearcuate chuckwall 132.Step portion 34 is preferably curved with a radius of curvature r6 of from about 0.02 to about 0.06 inches, more preferably from about 0.025to about 0.055 inches, still more preferably from about 0.03 to about 0.05 inches, and most preferably from about 0.035 to about 0.045 inches. The radius of curvature r6 has a center-point located above the profile of thecan lid 10. -
Transitional portion 36 extends radially outward from-step portion 34.Transitional portion 36 has a radius of curvature r7 of from about 0.04 to about 0.09 inches, more preferably from about 0.05 to about 0.08 inches, and still more preferably from about 0.06 to about 0.07 inches. Radius of curvature r7 has a center-point located below the profile ofcan lid 10.Peripheral curl portion 38 extends radially outward fromtransitional portion 36.Peripheral curl portion 38 has a height h2 of from about 0.04 to about 0.09 inches, more preferably from about 0.0475 to about 0.0825 inches, still more preferably from about 0.055 to about 0.075 inches, and most preferably from about 0.06 to about 0.07 inches. - FIG. 2 shows the same embodiment of
can lid 10 as FIG. 1 with the exception ofchuckwall 132.Chuckwall 232 in FIG. 2 is not an arcuate chuckwall but is generally flat or planar from a cross-sectional view.Chuckwall 232 has no radius of curvature.Chuckwall 232 is inclined at an angle with respect tocentral axis 14 of from about 20° to about 80°, and more preferably of from about 30° to about 60°, and still more preferably from about 40° to about 50°. - FIG. 3 shows the same embodiment of
can lid 10 as FIG. 1 with the exception ofchuckwall 132 andstep portion 34.Chuckwall 332 in FIG. 3 is not an arcuate chuckwall but is generally flat or planar from a cross-sectional view.Chuckwall 332 has no radius of curvature.Chuckwall 332 is inclined at an angle with respect tocentral axis 14 of from about 20° to about 80°, and more preferably of from about 30° to about 60°, and still more preferably from about 40° to about 50°.Transitional portion 36 extends radially outward fromchuckwall 332 in FIG. 3, as opposed to extending radially outward fromstep portion 34 in FIG. 1.Chuckwall 332 is connected toperipheral curl portion 38 bytransitional portion 36. - FIG. 4 shows can
lid 10 resting oncan body 40, and particularly resting onflange 42 ofcan body 40. Canbody 40 is supported by a base plate 45 (not shown) which together withchuck 44 is mounted for rotation aboutaxis 14.Chuck 44 includes a drivingsurface 46 configured to match and engage with the surface ofchuckwall 132 and with radius of curvature r6.Chuck 44 includes a substantially cylindricalupper portion 48. As discussed below,upper portion 48 may be modified by a draft angle for production purposes. A limited clamping force betweenchuck 44 and base plate 45 (not shown) provides adequate friction betweenchuck 44 andchuckwall 132 for positive rotation ofcan lid 10 and canbody 40. - FIG. 5 shows the initial stage of double seam formation between
can lid 10 and canbody 40.Roller 50 bears againstperipheral curl portion 38 and the centering force exerted bychuck 44.Chuck 44 drives canlid 10 and canbody 40 to rotate, generating a rolling, swaging action that reformstransitional portion 36,peripheral curl portion 38, andflange 42 into an intermediateperipheral seam 52. Radius of curvature r6 bears againstchuck 44 to supporttransitional portion 36 andperipheral curl portion 38 leads the rolling deformation againstroller 50. Thus positive support and guidance work together to achieve consistent and reliable results in producing intermediateperipheral seam 52. - FIG. 6 shows the final stage of forming a double seam between
can lid 10 and canbody 40. Here,roller 60 bears against intermediateperipheral seam 52 as it is supported bychuck 44.Chuck 44 drives canlid 10 and canbody 40 to rotate, so that the pressure ofroller 60 flattens intermediateperipheral seam 52 againstupper portion 48 ofchuck 44, producingdouble seam 54.Upper portion 48 ofchuck 44 may be modified to include a draft angle for ease of separation of can lid l O after this operation. - FIG. 7 shows the manner in which a plurality of can lids10 stack for handling, packaging, and feeding a seaming machine. Annular countersink 16 a of
can lid 10 a bears down againstchuckwall 132 b nearcurved juncture 30 b ofadjacent can lid 10 b. Canlid 10 a is supported and separated fromcan lid 10 b by a height h3 sufficient to accommodate the thickness of a pull-tab (not shown). In this manner, can lids 10 are compactly and efficiently handled and are more readily positioned for magazine feeding of a mechanized seaming operation. - FIG. 8 shows the manner of stacking filled can64 a, closed and sealed according to the present invention on a like filled can 64 b. Stand
bead 66 a rests upondouble seam 54 b. - The following table indicates model test results on buckle pressures for a prior art can lid and an embodiment of the present invention. The buckle pressure is the pressure at which a sealed can experiences seam failure. The industry standard for minimum acceptable buckle pressure is around 90 psi. This table is based solely on model results and is included for illustrative purposes only. These model results indicate that implementation of an embodiment of the present invention will result in obtaining a buckle pressure no worse than a prior art can lid.
CAN LID BUCKLE PRESSURE (PSI) Prior Art Can Lid Basis With Mini Seam and Nonarcuate Chuckwall Can Lid of FIG. 1 4 psi above basis With Reduced Seam Peripheral Curl, Arcuate Chuckwall, and Step Portion - The embodiments shown and described above are exemplary. Many details are often found in the art and, therefore, many such details are neither shown nor described. It is not claimed that all of the details, parts, elements, or steps described and shown were invented herein. Even though numerous characteristics and advantages of the present inventions have been described in the drawings and accompanying text, the description is illustrative only, and changes may be made in the detail, especially in matters of shape, size, and arrangement of the parts within the principles of the inventions to the full extent indicated by the broad meaning of the terms of the attached claims.
- The restrictive description and drawings of the specific examples above do not point out what an infringement of this patent would be, but are to provide at least one explanation of how to use and make the inventions. The limits of the inventions and the bounds of the patent protection are measured by and defined in the following claims.
Claims (26)
1. A lid for a can body comprising:
a center panel having a central axis that is perpendicular to a diameter of the outer rim of said lid;
an annular countersink surrounding said center panel;
a chuckwall extending radially outward from said annular countersink, wherein a line passing through the ends of said chuckwall is at an angle with respect to said central axis of the center panel of from about 20° to about 80°; and
a peripheral curl portion having a height less than 0.091 inches extending radially outward from said chuckwall.
2. The can lid according to claim 1 wherein a line passing through the ends of said chuckwall is at an angle with respect to said central axis of the center panel of from about 30° to about 60°.
3. The can lid according to claim 1 wherein a line passing through the ends of said chuckwall is at an angle with respect to said central axis of the center panel of from about 40° to about 50°.
4. The can lid according to claim 1 wherein the height of said peripheral curl portion is from about 0.04 to about 0.09 inches.
5. The can lid according to claim 1 further comprising a transitional portion extending radially outward from said chuckwall, wherein the peripheral curl portion extends radially outward from said transitional portion.
6. The can lid according to claim 1 wherein said center panel is substantially flat or planar.
7. The can lid according to claim 1 wherein said center panel is arcuate.
8. The can lid according to claim 1 wherein said chuckwall is an arcuate chuckwall.
9. The can lid according to claim 8 wherein said arcuate chuckwall has a radius of curvature of from about 0.4 to about 1 inch, the center-point of said radius located below the profile of said lid.
10. The can lid according to claim 1 further comprising a step portion extending radially outward from said chuckwall.
11. The can lid according to claim 10 wherein said step portion is arcuate.
12. The can lid according to claim 1 I wherein said arcuate step portion has a radius of curvature of from about 0.02 to about 0.06 inches, the center-point of said radius being located above the profile of said lid.
13. The can lid according to claim 10 wherein said chuckwall is an arcuate chuckwall.
14. The can lid according to claim 13 wherein a line passing through the ends of said arcuate chuckwall is at an angle with respect to said central axis of the center panel of from about 30° to about 60°.
15. The can lid according to claim 13 wherein a line passing through the ends of said arcuate chuckwall is at an angle with respect to said central axis of the center panel of from about 40° to about 50°.
16. The can lid according to claim 13 wherein said arcuate chuckwall has a radius of curvature of from about 0.4 to about 1 inch, the center-point of said radius located below the profile of said lid.
17. The can lid according to claim 1 wherein said annular countersink has a height of from about 0.030 to about 0.115 inches.
18. The can lid of claim 17 wherein said chuckwall is an arcuate chuckwall having a radius of curvature of from about 0.4 to about 1 inch, the center-point of said radius being located below the profile of said lid.
19. The can lid of claim 17 further comprising a step portion extending radially outward from said chuckwall.
20. The can lid according to claim 19 wherein said chuckwall is an arcuate chuckwall.
21. A lid for a can body comprising:
a center panel having a central axis that is perpendicular to a diameter of the outer rim of said lid;
an annular countersink surrounding said center panel;
a chuckwall extending radially outward from said annular countersink, wherein a line passing through the ends of said chuckwall is at an angle with respect to said central axis of the center panel of from about 20° to about 80°;
a step portion extending radially outward from said chuckwall;
a transitional portion extending radially outward from said step portion; and
a peripheral curl portion having a height less than 0.091 inches extending radially outward from said transitional portion.
22. The can lid according to claim 21 wherein said chuckwall is an arcuate chuckwall.
23. The can lid according to claim 21 wherein said step portion is an arcuate step portion.
24. The can lid according to claim 21 wherein said chuckwall is an arcuate chuckwall and said step portion is an arcuate step portion.
25. A lid for a can body comprising:
a center panel having a central axis that is perpendicular to a diameter of the outer rim of said lid;
an annular countersink surrounding said center panel wherein said annular countersink has a height of from about 0.030 to about 0.115 inches;
an arcuate chuckwall extending radially outward from said annular countersink wherein said arcuate chuckwall has a radius of curvature of from about 0.4 to about 1 inch, the center-point of said radius being located below the profile of said lid, and wherein a line passing through the ends of said arcuate chuckwall is at an angle with respect to said central axis of the center panel of from about 20° to about 80°;
an arcuate step portion extending radially outward from said arcuate chuckwall wherein said arcuate step portion has a radius of curvature of from about 0.02 to about 0.06 inches, the center-point of said radius being located above the profile of said lid;
a transitional portion extending radially outward from said arcuate step portion; and
a peripheral curl portion extending radially outward from said transitional portion wherein said peripheral curl portion has a height less than 0.091 inches.
26. A method of forming a double seam joining a can body to a can lid, the can lid having a slanted chuckwall at an angle of from about 20° to about 80°, a step portion joining the chuckwall to a transitional portion, and a peripheral curl, and the can body having a can body flange, comprising the steps of:
supporting the can body on a base plate;
positioning the can lid on the can body with the transitional portion resting on the can body flange;
providing a chuck having a lower portion and a substantially cylindrical upper portion, the lower portion configured to closely conform to the chuckwall surface and the surface of the step portion when the chuck is in engagement with the can lid;
engaging the can lid with the chuck;
rolling the peripheral curl and can body flange together to form an intermediate interlocking peripheral seam; and
compressing the intermediate interlocking peripheral seam against the upper portion of the chuck to form a double seam.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/752,928 US20040140312A1 (en) | 1999-12-08 | 2004-01-07 | Can lid closure and method of joining a can lid closure to a can body |
US11/188,563 US8490825B2 (en) | 1999-12-08 | 2005-07-25 | Can lid closure and method of joining a can lid closure to a can body |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/456,345 US6499622B1 (en) | 1999-12-08 | 1999-12-08 | Can lid closure and method of joining a can lid closure to a can body |
US10/153,364 US6702142B2 (en) | 1999-12-08 | 2002-05-22 | Can lid closure and method of joining a can lid closure to a can body |
US10/752,928 US20040140312A1 (en) | 1999-12-08 | 2004-01-07 | Can lid closure and method of joining a can lid closure to a can body |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/153,364 Continuation US6702142B2 (en) | 1999-12-08 | 2002-05-22 | Can lid closure and method of joining a can lid closure to a can body |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/188,563 Continuation-In-Part US8490825B2 (en) | 1999-12-08 | 2005-07-25 | Can lid closure and method of joining a can lid closure to a can body |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040140312A1 true US20040140312A1 (en) | 2004-07-22 |
Family
ID=23812387
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/456,345 Expired - Lifetime US6499622B1 (en) | 1999-12-08 | 1999-12-08 | Can lid closure and method of joining a can lid closure to a can body |
US10/153,364 Expired - Lifetime US6702142B2 (en) | 1999-12-08 | 2002-05-22 | Can lid closure and method of joining a can lid closure to a can body |
US10/752,928 Abandoned US20040140312A1 (en) | 1999-12-08 | 2004-01-07 | Can lid closure and method of joining a can lid closure to a can body |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/456,345 Expired - Lifetime US6499622B1 (en) | 1999-12-08 | 1999-12-08 | Can lid closure and method of joining a can lid closure to a can body |
US10/153,364 Expired - Lifetime US6702142B2 (en) | 1999-12-08 | 2002-05-22 | Can lid closure and method of joining a can lid closure to a can body |
Country Status (13)
Country | Link |
---|---|
US (3) | US6499622B1 (en) |
EP (1) | EP1237666B1 (en) |
JP (1) | JP2003520135A (en) |
CN (2) | CN1244418C (en) |
AT (1) | ATE280643T1 (en) |
AU (1) | AU771993C (en) |
BR (1) | BR0016243A (en) |
CA (1) | CA2392994C (en) |
DE (1) | DE60015385T2 (en) |
ES (1) | ES2231308T3 (en) |
HK (2) | HK1056137A1 (en) |
MX (1) | MXPA02005671A (en) |
WO (1) | WO2001041948A2 (en) |
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US20030173367A1 (en) * | 1999-12-08 | 2003-09-18 | Nguyen Tuan A. | Metallic beverage can end with improved chuck wall and countersink |
US20060042344A1 (en) * | 2004-07-29 | 2006-03-02 | Bathurst Jess N | Method and apparatus for shaping a metallic container end closure |
US20070007294A1 (en) * | 2005-07-01 | 2007-01-11 | Jentzsch Kevin R | Method and apparatus for forming a reinforcing bead in a container end closure |
US20080257900A1 (en) * | 2007-04-20 | 2008-10-23 | Rexam Beverage Can Company | Can End With Negatively Angled Wall |
US20090039091A1 (en) * | 2007-08-10 | 2009-02-12 | Rexam Beverage Can Company | Can End With Countersink |
US7938290B2 (en) | 2004-09-27 | 2011-05-10 | Ball Corporation | Container end closure having improved chuck wall with strengthening bead and countersink |
US8313004B2 (en) | 2001-07-03 | 2012-11-20 | Ball Corporation | Can shell and double-seamed can end |
US8727169B2 (en) | 2010-11-18 | 2014-05-20 | Ball Corporation | Metallic beverage can end closure with offset countersink |
US8973780B2 (en) | 2007-08-10 | 2015-03-10 | Rexam Beverage Can Company | Can end with reinforcing bead |
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US6561004B1 (en) * | 1999-12-08 | 2003-05-13 | Metal Container Corporation | Can lid closure and method of joining a can lid closure to a can body |
US7380684B2 (en) * | 1999-12-08 | 2008-06-03 | Metal Container Corporation | Can lid closure |
US8490825B2 (en) | 1999-12-08 | 2013-07-23 | Metal Container Corporation | Can lid closure and method of joining a can lid closure to a can body |
US6499622B1 (en) * | 1999-12-08 | 2002-12-31 | Metal Container Corporation, Inc. | Can lid closure and method of joining a can lid closure to a can body |
WO2002057137A2 (en) * | 2001-01-19 | 2002-07-25 | Ball Corporation | Beverage can end with reduced countersink |
US6686883B2 (en) * | 2001-06-28 | 2004-02-03 | Micro Ft Co., Ltd. | Antenna |
US7819275B2 (en) * | 2001-07-03 | 2010-10-26 | Container Development, Ltd. | Can shell and double-seamed can end |
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US7341163B2 (en) * | 2001-07-03 | 2008-03-11 | Container Development, Ltd. | Can shell and double-seamed can end |
US6772900B2 (en) | 2001-08-16 | 2004-08-10 | Rexam Beverage Can Company | Can end |
US7556168B2 (en) * | 2001-08-16 | 2009-07-07 | Rexam Beverage Can Company | Can end with fold |
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US6748789B2 (en) | 2001-10-19 | 2004-06-15 | Rexam Beverage Can Company | Reformed can end for a container and method for producing same |
US6761280B2 (en) * | 2001-12-27 | 2004-07-13 | Alcon Inc. | Metal end shell and easy opening can end for beer and beverage cans |
US7591392B2 (en) | 2002-04-22 | 2009-09-22 | Crown Packaging Technology, Inc. | Can end |
US6736283B1 (en) | 2002-11-19 | 2004-05-18 | Alcoa Inc. | Can end, tooling for manufacture of the can end and seaming chuck adapted to affix a converted can end to a can body |
US6915553B2 (en) * | 2003-02-19 | 2005-07-12 | Rexam Beverage Can Company | Seaming apparatus and method for cans |
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US20090180999A1 (en) * | 2008-01-11 | 2009-07-16 | U.S. Nutraceuticals, Llc D/B/A Valensa International | Method of preventing, controlling and ameliorating urinary tract infections using cranberry derivative and d-mannose composition |
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US9566634B2 (en) | 2010-06-07 | 2017-02-14 | Rexam Beverage Can Company | Can end produced from downgauged blank |
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Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030173367A1 (en) * | 1999-12-08 | 2003-09-18 | Nguyen Tuan A. | Metallic beverage can end with improved chuck wall and countersink |
US8931660B2 (en) | 2001-07-03 | 2015-01-13 | Ball Corporation | Can shell and double-seamed can end |
US10843845B2 (en) | 2001-07-03 | 2020-11-24 | Ball Corporation | Can shell and double-seamed can end |
US10246217B2 (en) | 2001-07-03 | 2019-04-02 | Ball Corporation | Can shell and double-seamed can end |
US9371152B2 (en) | 2001-07-03 | 2016-06-21 | Ball Corporation | Can shell and double-seamed can end |
US8313004B2 (en) | 2001-07-03 | 2012-11-20 | Ball Corporation | Can shell and double-seamed can end |
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US7506779B2 (en) * | 2005-07-01 | 2009-03-24 | Ball Corporation | Method and apparatus for forming a reinforcing bead in a container end closure |
US7743635B2 (en) | 2005-07-01 | 2010-06-29 | Ball Corporation | Method and apparatus for forming a reinforcing bead in a container end closure |
US8205477B2 (en) | 2005-07-01 | 2012-06-26 | Ball Corporation | Container end closure |
US8875936B2 (en) | 2007-04-20 | 2014-11-04 | Rexam Beverage Can Company | Can end with negatively angled wall |
US20080257900A1 (en) * | 2007-04-20 | 2008-10-23 | Rexam Beverage Can Company | Can End With Negatively Angled Wall |
US8011527B2 (en) | 2007-08-10 | 2011-09-06 | Rexam Beverage Can Company | Can end with countersink |
US8973780B2 (en) | 2007-08-10 | 2015-03-10 | Rexam Beverage Can Company | Can end with reinforcing bead |
WO2009023555A1 (en) * | 2007-08-10 | 2009-02-19 | Rexam Beverage Can Company | Can end with countersink |
US9540137B2 (en) | 2007-08-10 | 2017-01-10 | Rexam Beverage Can Company | Can end with reinforcing bead |
US20090039091A1 (en) * | 2007-08-10 | 2009-02-12 | Rexam Beverage Can Company | Can End With Countersink |
US8727169B2 (en) | 2010-11-18 | 2014-05-20 | Ball Corporation | Metallic beverage can end closure with offset countersink |
Also Published As
Publication number | Publication date |
---|---|
US6702142B2 (en) | 2004-03-09 |
DE60015385D1 (en) | 2004-12-02 |
AU771993C (en) | 2005-06-30 |
CA2392994C (en) | 2006-10-24 |
WO2001041948A3 (en) | 2002-02-14 |
CA2392994A1 (en) | 2001-06-14 |
EP1237666A2 (en) | 2002-09-11 |
HK1093938A1 (en) | 2007-03-16 |
CN100364688C (en) | 2008-01-30 |
ATE280643T1 (en) | 2004-11-15 |
DE60015385T2 (en) | 2005-11-10 |
AU771993B2 (en) | 2004-04-08 |
CN1799723A (en) | 2006-07-12 |
BR0016243A (en) | 2002-08-27 |
WO2001041948A2 (en) | 2001-06-14 |
AU4516601A (en) | 2001-06-18 |
MXPA02005671A (en) | 2004-09-10 |
CN1244418C (en) | 2006-03-08 |
US6499622B1 (en) | 2002-12-31 |
JP2003520135A (en) | 2003-07-02 |
HK1056137A1 (en) | 2004-02-06 |
US20020190071A1 (en) | 2002-12-19 |
ES2231308T3 (en) | 2005-05-16 |
EP1237666B1 (en) | 2004-10-27 |
CN1433344A (en) | 2003-07-30 |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |