EP0492861A1 - Can bodies - Google Patents

Can bodies Download PDF

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Publication number
EP0492861A1
EP0492861A1 EP91311334A EP91311334A EP0492861A1 EP 0492861 A1 EP0492861 A1 EP 0492861A1 EP 91311334 A EP91311334 A EP 91311334A EP 91311334 A EP91311334 A EP 91311334A EP 0492861 A1 EP0492861 A1 EP 0492861A1
Authority
EP
European Patent Office
Prior art keywords
central portion
wall
wall thickness
panels
metal
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.)
Granted
Application number
EP91311334A
Other languages
German (de)
French (fr)
Other versions
EP0492861B1 (en
Inventor
Paul Charles Claydon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Packaging UK Ltd
Original Assignee
CMB Foodcan PLC
CarnaudMetalbox PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10687472&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0492861(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by CMB Foodcan PLC, CarnaudMetalbox PLC filed Critical CMB Foodcan PLC
Publication of EP0492861A1 publication Critical patent/EP0492861A1/en
Application granted granted Critical
Publication of EP0492861B1 publication Critical patent/EP0492861B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • 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
    • B21D51/2646—Of particular non cylindrical shape, e.g. conical, rectangular, polygonal, bulged
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/12—Cans, casks, barrels, or drums
    • B65D1/14—Cans, casks, barrels, or drums characterised by shape
    • B65D1/16—Cans, casks, barrels, or drums characterised by shape of curved cross-section, e.g. cylindrical
    • B65D1/165—Cylindrical cans

Definitions

  • the invention relates to metal can bodies for beverage cans.
  • Such can bodies are adapted to be closed by a can end seamed to the open end of the can body to form a closed can.
  • Known can bodies for beverage cans comprise a bottom end wall and a generally cylindrical side wall; the side wall comprising a bottom portion connected to the bottom wall, a central portion extending upwardly from the bottom portion , and a top portion extending upwardly from the central portion and terminating in an open end; wherein the top portion and bottom portion are of greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower annular zones of reducing wall thickness.
  • dents may be made in the cylindrical wall and these dents provide localised points of weakness which can lead to creasing during necking and flanging of the neck of the can body, and filling double seaming of the can end onto the can body during which the can body is subjected to an axial load. It has been found that the provision of a plurality of parallel longitudinally extending outwardly convex ribs in the central portion of the can body will reduce or eliminate the effect of such dents and give axial strength to the can. It has also been found that the optimum performance of the can body is achieved when the ribs terminate in the zones of reducing wall thickness and thus connect the portions of greater wall thickness together.
  • a metal can body for a beverage can comprising a bottom end wall and a generally cylindrical side wall; the side wall comprising a bottom portion connected to the bottom wall, a central portion extending upwardly from the bottom portion, and a top portion extending upwardly from the central portion and terminating in an open end; wherein the top portion and bottom portion are of greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower annular zones of reducing wall thickness; and wherein the side wall is provided with a plurality of parallel externally convex longitudinal ribs equally spaced around the circumference and terminating within the zones of reducing wall thickness.
  • the can body 1 comprises a bottom end wall 2, which in this case is domed, and a side wall 3.
  • the side wall 3 comprises a bottom portion 4 connected to the bottom end wall, a central portion 5 and a top portion 6 terminating in an open end.
  • the top portion 6 and bottom portion 4 are of greater wall thickness than the central portion 5 and are respectively connected to the central portion 5 through upper and lower annular zones 7,8 which have a wall thickness which reduces towards the central portion 5.
  • the wall thickness of the top portion will be about 0.15mm (.0060 inches), central portion about 0.1mm (.0040 inches), and bottom portion about 0.3mm (.0120 inches).
  • the can body of Figure 1 is formed by blanking a disc from sheet metal, drawing a cup from the disc to form a bottom end wall and a side wall, and wall ironing the side wall.
  • Figure 2 shows the can body after the provision of a plurality of parallel longitudinally extending convex ribs 10 equally spaced around the circumference.
  • the ribs 10 terminate in the zones 7, 8.
  • Adjacent ribs define elongate panels 11 therebeteween. Each panel 11 has semi-elliptical shaped end areas formed within the zones 7,8.
  • the ribs and panels extend into the zones 7,8 to optimize the can body performance by providing strengthening columns connecting the upper and lower portions 4, 6 of relatively great wall thickness.
  • Figure 3 shows the can body after necking and flanging of the top portion 6 in readiness for receiving a can end to be seamed to the flange 12 in known manner.
  • Figure 4 shows the thickness profile of the side wall as it varies through the height of the can body.
  • Figures 1-4 show a can body provided with only 24 ribs 10 and panels 11. It is believed that can bodies having from about 24 to about 45 ribs are useful for beverage cans. If the number of ribs is less than about 24 there is a significant reduction in the volume of the finished can.
  • Figures 5 and 6 show a can body having 30 ribs 10 and panels 11.
  • Each rib is outwardly convex having a radius P and lies on a circle of radius R where R is the radius of the can body in the middle of the central portion prior to formation of the ribs.
  • the panels 11 are outwardly concave and have a radius U.
  • the concavity of the panels 11 has been exaggerated in Figures 5 and 6.
  • the ratio of U:P is preferably at least 20:1.
  • the rib radius P will be about 1mm.
  • the panels are substantially flat.
  • the ribs 10 will lie on a circle whose radius is very slightly greater than the radius R prior to formation of the ribs and panels.
  • the top and bottom portions 6 and 4 have a slightly greater radius than the central portion and the radius of the central portion of the can body after formation of the ribs will be no greater than the radius of the top and bottom portions. This is important in handling since the can body must roll truly.
  • Figures 9 and 10 show a mandrel 20 used in formation of the ribs and panels.
  • the can body is located over the mandrel which is then rolled along an external forming rail (not shown).
  • the ribs are formed prior to necking of the can body but nevertheless the mandrel must be of smaller radius than the can body so that it can be extracted from the can body. To this end it is formed with less ribs than the can body.
  • the mandrel 20 has 29 ribs 21 for forming a can body with 30 ribs. Between the ribs 21 on the mandrel are panels 22 which are outwardly concave. The profiles of the panels 22 will determine the profiles of the panels 11 in the can body.
  • FIG. 9 and 10 is for forming the can body of Figs. 7 and 8 having substantially flat panels 11.
  • the side wall of the central portion of the can body is locally deformed to the profile of the mandrel 20 but due to the natural resilience of the material the panels of the can body will subsequently spring back to a substantially flat profile.
  • the panels 22 of the mandrel 20 are formed more deeply concave. The depth of the panel must, however, be relatively shallow to avoid excessive loss of volume and to prevent the panels from reversing when subjected to internal pressure as would be experienced when the can is filled with a carbonated drink.
  • the improved performance of can bodies as a result of the panelling may be used to increase the axial load strength, or to allow a reduction of the wall thickness of the central portion 5 without loss of axial strength. Comparative tests have shown that the performance of panelled can bodies having a wall thickness in the central portion of 40x10 ⁇ 4 inches is comparable to that of unpanelled can bodies of wall thickness 43x10 ⁇ 4 inches. Considering the large number of can bodies made, this represents a very significant saving.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Medicinal Preparation (AREA)
  • Materials For Medical Uses (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Tea And Coffee (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Table Devices Or Equipment (AREA)
  • Stackable Containers (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Basic Packing Technique (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

A metal can body for a beverage can comprises a bottom end wall 2 and a generally cylindrical side wall 3; the side wall comprising a bottom portion 4 connected to the bottom wall, a central portion 5 extending upwardly from the bottom portion, and a top portion 6 extending upwardly from the central portion and terminating in an open end. The top portion 6 and bottom portion 4 are of greater wall thickness than the central portion 5 and are respectively connected to the central portion through upper and lower annular zones 7, 8 of reducing wall thickness. The side wall is provided with a plurality of parallel externally convex longitudinal ribs 10 equally spaced around the circumference and terminating within the zones 7, 8 of reducing wall thickness.

Description

  • The invention relates to metal can bodies for beverage cans. Such can bodies are adapted to be closed by a can end seamed to the open end of the can body to form a closed can.
  • Known can bodies for beverage cans comprise a bottom end wall and a generally cylindrical side wall; the side wall comprising a bottom portion connected to the bottom wall, a central portion extending upwardly from the bottom portion , and a top portion extending upwardly from the central portion and terminating in an open end; wherein the top portion and bottom portion are of greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower annular zones of reducing wall thickness.
  • During handling of can bodies small dents may be made in the cylindrical wall and these dents provide localised points of weakness which can lead to creasing during necking and flanging of the neck of the can body, and filling double seaming of the can end onto the can body during which the can body is subjected to an axial load. It has been found that the provision of a plurality of parallel longitudinally extending outwardly convex ribs in the central portion of the can body will reduce or eliminate the effect of such dents and give axial strength to the can. It has also been found that the optimum performance of the can body is achieved when the ribs terminate in the zones of reducing wall thickness and thus connect the portions of greater wall thickness together.
  • Accordingly the invention provides a metal can body for a beverage can comprising a bottom end wall and a generally cylindrical side wall; the side wall comprising a bottom portion connected to the bottom wall, a central portion extending upwardly from the bottom portion, and a top portion extending upwardly from the central portion and terminating in an open end; wherein the top portion and bottom portion are of greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower annular zones of reducing wall thickness; and wherein the side wall is provided with a plurality of parallel externally convex longitudinal ribs equally spaced around the circumference and terminating within the zones of reducing wall thickness.
  • Embodiments of the invention are described below with reference to the accompanying drawings in which:-
    • Figure 1 shows a partial section of a can body prior to provision of the longitudinal ribs;
    • Figure 2 shows a partial section of a can body after provision of the longitudinal ribs;
    • Figure 3 shows a side view of a can body, partially in section after provision of the ribs and after necking and flanging;
    • Figure 4 is a graph representing the wall thickness of the can body of Figure 3 against height;
    • Figure 5 is a side view of a can body;
    • Figure 6 is a horizontal section of the can body of Figure 5 taken on lines VI-VI;
    • Figures 7 and 8 are similar views to those of Figures 5 and 6 of an alternative embodiment of can body;
    • Figure 9 is a radial cross section through a mandrel for forming ribs in a can body; and
    • Figure 10 is an axial section through a mandrel for forming a can body.
  • Referring to Figures 1-4 it will be seen that the can body 1 comprises a bottom end wall 2, which in this case is domed, and a side wall 3. The side wall 3 comprises a bottom portion 4 connected to the bottom end wall, a central portion 5 and a top portion 6 terminating in an open end. The top portion 6 and bottom portion 4 are of greater wall thickness than the central portion 5 and are respectively connected to the central portion 5 through upper and lower annular zones 7,8 which have a wall thickness which reduces towards the central portion 5. Typically the wall thickness of the top portion will be about 0.15mm (.0060 inches), central portion about 0.1mm (.0040 inches), and bottom portion about 0.3mm (.0120 inches). The can body of Figure 1 is formed by blanking a disc from sheet metal, drawing a cup from the disc to form a bottom end wall and a side wall, and wall ironing the side wall. Figure 2 shows the can body after the provision of a plurality of parallel longitudinally extending convex ribs 10 equally spaced around the circumference. The ribs 10 terminate in the zones 7, 8. Adjacent ribs define elongate panels 11 therebeteween. Each panel 11 has semi-elliptical shaped end areas formed within the zones 7,8. The ribs and panels extend into the zones 7,8 to optimize the can body performance by providing strengthening columns connecting the upper and lower portions 4, 6 of relatively great wall thickness.
  • Figure 3 shows the can body after necking and flanging of the top portion 6 in readiness for receiving a can end to be seamed to the flange 12 in known manner.
  • Figure 4 shows the thickness profile of the side wall as it varies through the height of the can body.
  • Figures 1-4 show a can body provided with only 24 ribs 10 and panels 11. It is believed that can bodies having from about 24 to about 45 ribs are useful for beverage cans. If the number of ribs is less than about 24 there is a significant reduction in the volume of the finished can.
  • Figures 5 and 6 show a can body having 30 ribs 10 and panels 11. Each rib is outwardly convex having a radius P and lies on a circle of radius R where R is the radius of the can body in the middle of the central portion prior to formation of the ribs. The panels 11 are outwardly concave and have a radius U. The concavity of the panels 11 has been exaggerated in Figures 5 and 6. The ratio of U:P is preferably at least 20:1. Typically the rib radius P will be about 1mm. The perimeter of the can body in the central portion after forming of the ribs is the same as it was beforehand and the radii R, P and U are related by the equation R=U+2P. In this manner, stretching of the can wall during form of the ribs is avoided.
  • In a further embodiment shown also in Figures 7 and 8, also having 30 ribs 10, the panels are substantially flat. In this case the ribs 10 will lie on a circle whose radius is very slightly greater than the radius R prior to formation of the ribs and panels. As a result of the wall ironing process for forming the can body, however, the top and bottom portions 6 and 4 have a slightly greater radius than the central portion and the radius of the central portion of the can body after formation of the ribs will be no greater than the radius of the top and bottom portions. This is important in handling since the can body must roll truly.
  • Figures 9 and 10 show a mandrel 20 used in formation of the ribs and panels. The can body is located over the mandrel which is then rolled along an external forming rail (not shown). The ribs are formed prior to necking of the can body but nevertheless the mandrel must be of smaller radius than the can body so that it can be extracted from the can body. To this end it is formed with less ribs than the can body. In the example shown the mandrel 20 has 29 ribs 21 for forming a can body with 30 ribs. Between the ribs 21 on the mandrel are panels 22 which are outwardly concave. The profiles of the panels 22 will determine the profiles of the panels 11 in the can body. The mandrel shown in Figs. 9 and 10 is for forming the can body of Figs. 7 and 8 having substantially flat panels 11. During formation, the side wall of the central portion of the can body is locally deformed to the profile of the mandrel 20 but due to the natural resilience of the material the panels of the can body will subsequently spring back to a substantially flat profile. If a can body as shown in Figs. 5 and 6 is required, the panels 22 of the mandrel 20 are formed more deeply concave. The depth of the panel must, however, be relatively shallow to avoid excessive loss of volume and to prevent the panels from reversing when subjected to internal pressure as would be experienced when the can is filled with a carbonated drink.
  • The improved performance of can bodies as a result of the panelling may be used to increase the axial load strength, or to allow a reduction of the wall thickness of the central portion 5 without loss of axial strength. Comparative tests have shown that the performance of panelled can bodies having a wall thickness in the central portion of 40x10⁻⁴ inches is comparable to that of unpanelled can bodies of wall thickness 43x10⁻⁴ inches. Considering the large number of can bodies made, this represents a very significant saving.

Claims (6)

  1. A metal can body for a beverage can comprising a bottom end wall and a generally cylindrical side wall; the side wall comprising a bottom portion connected to the bottom wall, a central portion extending upwardly from the bottom portion, and a top portion extending upwardly from the central portion and terminating in an open end;
    wherein the top portion and bottom portion are of greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower annular zones of reducing wall thickness;
    and wherein the side wall is provided with a plurality of parallel externally convex longitudinal ribs equally spaced around the circumference and terminating within the zones of reducing wall thickness.
  2. A metal can body as claimed in claim 1 wherein adjacent ribs define elongate panels therebetween, each panel having semi-elliptical shaped end areas formed within the zones of reducing wall thickness.
  3. A metal can body as claimed in claim 2 wherein the panels are outwardly concave.
  4. A metal can body as claimed in claim 2 wherein the panels are substantially flat.
  5. A metal can body as claimed in any preceding claim wherein the number of panels is from 24 to 45.
  6. A metal can body as claimed in claim 5 wherein the number of panel is about 30.
EP91311334A 1990-12-21 1991-12-05 Can bodies Revoked EP0492861B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9027851 1990-12-21
GB9027851A GB2250972B (en) 1990-12-21 1990-12-21 Can bodies

Publications (2)

Publication Number Publication Date
EP0492861A1 true EP0492861A1 (en) 1992-07-01
EP0492861B1 EP0492861B1 (en) 1994-08-03

Family

ID=10687472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91311334A Revoked EP0492861B1 (en) 1990-12-21 1991-12-05 Can bodies

Country Status (16)

Country Link
EP (1) EP0492861B1 (en)
JP (1) JPH04311445A (en)
KR (1) KR0141910B1 (en)
AT (1) ATE109419T1 (en)
AU (1) AU655440B2 (en)
BR (1) BR9105559A (en)
CA (1) CA2057755C (en)
DE (1) DE69103254T2 (en)
DK (1) DK0492861T3 (en)
ES (1) ES2059064T3 (en)
GB (1) GB2250972B (en)
MX (1) MX9102668A (en)
MY (1) MY107646A (en)
NZ (1) NZ240877A (en)
PL (1) PL166562B1 (en)
ZA (1) ZA919369B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547636A1 (en) * 1991-12-18 1993-06-23 Ball Corporation Improved drawn and ironed container and apparatus and method for forming same
WO1996040457A2 (en) * 1995-06-07 1996-12-19 American National Can Company Reshaped container and method and apparatus for reshaping a container
US5704244A (en) * 1995-06-07 1998-01-06 American National Can Company Apparatus for reshaping a container
US5727414A (en) * 1995-06-07 1998-03-17 American National Can Company Method for reshaping a container
EP0852972A2 (en) * 1996-10-21 1998-07-15 Daiwa Can Company Process for manufacturing a deformed metal can having a reshaped can body wall
US7934410B2 (en) 2006-06-26 2011-05-03 Alcoa Inc. Expanding die and method of shaping containers
US8322183B2 (en) 2006-05-16 2012-12-04 Alcoa Inc. Manufacturing process to produce a necked container
US9327338B2 (en) 2012-12-20 2016-05-03 Alcoa Inc. Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container
US9707615B2 (en) 2010-08-20 2017-07-18 Alcoa Usa Corp. Shaped metal container and method for making same
PL426328A1 (en) * 2018-03-20 2019-09-23 Can-Pack Spółka Akcyjna Metal can

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9324910D0 (en) * 1993-12-04 1994-01-26 Metal Box Plc Containers
US5593056A (en) * 1995-05-08 1997-01-14 Pepsico., Inc. Rib for plastic container
JP6406033B2 (en) * 2015-01-28 2018-10-17 工機ホールディングス株式会社 Centrifuge and swing rotor for centrifuge

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US1378442A (en) * 1917-11-16 1921-05-17 Lanston Monotype Machine Co Process of corrugating cylindrical bodies
US4169537A (en) * 1978-03-22 1979-10-02 Centennial Plastics Co., Inc. Storage drum
FR2505688A1 (en) * 1981-05-12 1982-11-19 Cantec Inc METHOD OF DEFORMING BODIES OF METAL BOXES AND DEVICE FOR IMPLEMENTING THE SAME
US4578976A (en) * 1984-04-09 1986-04-01 National Can Corporation Container processing apparatus

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FR584867A (en) * 1924-08-05 1925-02-17
GB243947A (en) * 1925-02-27 1925-12-10 Arthur Charles Giles Improvements in the production of sheet metal cylinders, drums and like containers and in apparatus used therein
GB703836A (en) * 1948-12-11 1954-02-10 Sava Byron Franghia Improvements in or relating to cartons or containers
US3335902A (en) * 1964-12-28 1967-08-15 Continental Can Co Superimposed axial-circumferential beading of cans
GB1120576A (en) * 1966-07-07 1968-07-17 Plastic Can Corp Improvements in and relating to drawing articles from a blank of ductile metal
DE3216660A1 (en) * 1981-05-12 1982-12-16 Cantec, Inc., Fort Worth, Tex. Can made of thin-walled material and method of its manufacture
CH656366A5 (en) * 1981-05-12 1986-06-30 Cantec Inc THIN WALL PAN.
GB8923909D0 (en) * 1989-10-24 1989-12-13 Metal Box Plc Containers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1378442A (en) * 1917-11-16 1921-05-17 Lanston Monotype Machine Co Process of corrugating cylindrical bodies
US4169537A (en) * 1978-03-22 1979-10-02 Centennial Plastics Co., Inc. Storage drum
FR2505688A1 (en) * 1981-05-12 1982-11-19 Cantec Inc METHOD OF DEFORMING BODIES OF METAL BOXES AND DEVICE FOR IMPLEMENTING THE SAME
US4578976A (en) * 1984-04-09 1986-04-01 National Can Corporation Container processing apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0547636A1 (en) * 1991-12-18 1993-06-23 Ball Corporation Improved drawn and ironed container and apparatus and method for forming same
WO1996040457A2 (en) * 1995-06-07 1996-12-19 American National Can Company Reshaped container and method and apparatus for reshaping a container
WO1996040457A3 (en) * 1995-06-07 1997-02-20 American National Can Co Reshaped container and method and apparatus for reshaping a container
US5704244A (en) * 1995-06-07 1998-01-06 American National Can Company Apparatus for reshaping a container
US5727414A (en) * 1995-06-07 1998-03-17 American National Can Company Method for reshaping a container
EP0852972A3 (en) * 1996-10-21 1999-02-03 Daiwa Can Company Process for manufacturing a deformed metal can having a reshaped can body wall
EP0852972A2 (en) * 1996-10-21 1998-07-15 Daiwa Can Company Process for manufacturing a deformed metal can having a reshaped can body wall
US8322183B2 (en) 2006-05-16 2012-12-04 Alcoa Inc. Manufacturing process to produce a necked container
US7934410B2 (en) 2006-06-26 2011-05-03 Alcoa Inc. Expanding die and method of shaping containers
US7954354B2 (en) 2006-06-26 2011-06-07 Alcoa Inc. Method of manufacturing containers
US8555692B2 (en) 2006-06-26 2013-10-15 Alcoa Inc. Expanding die and method of shaping containers
US9707615B2 (en) 2010-08-20 2017-07-18 Alcoa Usa Corp. Shaped metal container and method for making same
US10464707B2 (en) 2010-08-20 2019-11-05 Alcoa Usa Corp. Shaped metal container and method for making same
US9327338B2 (en) 2012-12-20 2016-05-03 Alcoa Inc. Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container
PL426328A1 (en) * 2018-03-20 2019-09-23 Can-Pack Spółka Akcyjna Metal can

Also Published As

Publication number Publication date
CA2057755A1 (en) 1992-06-22
AU8839391A (en) 1992-06-25
JPH04311445A (en) 1992-11-04
DK0492861T3 (en) 1994-11-07
NZ240877A (en) 1993-07-27
CA2057755C (en) 1996-01-09
BR9105559A (en) 1992-09-01
DE69103254T2 (en) 1994-11-24
DE69103254D1 (en) 1994-09-08
MX9102668A (en) 1992-06-01
ATE109419T1 (en) 1994-08-15
GB2250972B (en) 1994-05-04
KR920011874A (en) 1992-07-25
GB2250972A (en) 1992-06-24
EP0492861B1 (en) 1994-08-03
KR0141910B1 (en) 1998-07-15
MY107646A (en) 1996-05-30
PL292871A1 (en) 1992-06-26
PL166562B1 (en) 1995-06-30
ES2059064T3 (en) 1994-11-01
ZA919369B (en) 1993-05-27
AU655440B2 (en) 1994-12-22
GB9027851D0 (en) 1991-02-13

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