US20080116212A1 - Metal Can Body - Google Patents
Metal Can Body Download PDFInfo
- Publication number
- US20080116212A1 US20080116212A1 US11/577,243 US57724305A US2008116212A1 US 20080116212 A1 US20080116212 A1 US 20080116212A1 US 57724305 A US57724305 A US 57724305A US 2008116212 A1 US2008116212 A1 US 2008116212A1
- Authority
- US
- United States
- Prior art keywords
- wall
- beads
- thickness
- annular portion
- wall thickness
- 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
-
- 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
- B65D1/40—Details of walls
- B65D1/42—Reinforcing or strengthening parts or members
Definitions
- the invention relates to a can body comprising a beaded, essentially round cylindrical circumferential metal wall.
- Such a can body is known from e.g. EP0780314 disclosing a can-wall with beads wherein various parameters defining the bead geometry are disclosed.
- EP0780314 it is proposed to vary the bead length depending on local susceptibility to collapsing.
- Axial load is to be understood as a load on the can wall caused by forcing the top towards the bottom of the can.
- Paneling is to be understood as a phenomenon caused by forces acting on the can wall where the forces are essentially not parallel to the wall, such as forces exerted on the can wall if the assembled en closed can is put in a pressurised vessel.
- the wall comprises purposively selected thick and thin walled annular sections and the wall is at least partly provided with beads.
- a can body comprises a thicker annular wall portion in combination with beads according to a suitable beading profile
- DWI drawing and wall ironing
- the beads may be horizontal beads, i.e. beads that form an “endless groove”, the extreme of the “valley” lying in a plane perpendicular to the centre line of the can body, one or more spiral beads, or vertical beads.
- the can body according to the invention is one wherein the metal can wall is wall ironed, such as in a DWI can.
- the metal can wall is wall ironed, such as in a DWI can.
- the can body is provided with at least an annular portion of a relatively small wall thickness provided with relatively shallow beads and an annular portion of a relatively large wall thickness provided with relatively deep beads so as to increase the ratio mechanical performance/metal consumption.
- Metal consumption should be understood as a term that may be expressed in the form of a volume, thickness or weight of the sheet metal used for the making the can body in question and/or of the material forming part of the resulting can body.
- each annular portion of a can wall with locally optimised combinations of wall thickness and bead depth, it is possible to achieve a lower packaging metal consumption for a certain “mechanical” performance, or conversely better performance for the same metal consumption. This renders direct advantages of smaller material consumption, and further advantages regarding logistical and environmental aspects, e.g. in the form of reduction of weight to be transported and recycled in the distribution chain.
- the annular portion of relatively large wall thickness is positioned in the middle region of the wall.
- the middle region of the wall will generally be most susceptible to paneling.
- Providing the annular portion of relatively large wall thickness in the middle region of the wall enables provision of (heavier) beading to the extent required with a view to optimising axial load strength and paneling strength locally.
- annular portion of relatively small wall thickness on either side of the annular portion of relatively large wall thickness.
- the top and bottom region of the wall situated on either side of the middle region are supported by the lid and the bottom of the closed can respectively.
- the top and bottom region are additionally supported by the annular portion of relatively large wall thickness positioned in the middle region of the wall.
- FIG. 1 a schematic representation of the wall thickness at various locations of a known can body in unbeaded condition
- FIG. 2 a schematic representation of the wall thickness at various location of a can body according to the invention in unbeaded condition
- FIG. 3 a known can bead profile and a can wall thickness profile
- FIG. 4 a can bead profile and a can wall thickness profile according to the invention.
- DWI wall ironed
- All cans were made from T57CA standard tinplate, using conventional can-making processes including drawing and wall ironing (DWI) and beading.
- DWI drawing and wall ironing
- the can body according to the invention was drawn and wall ironed according to EP1294622 using a stepped punch to realise a “drawn and wall ironed vary wall thickness can”.
- the wall of the can body was subsequently provided with beads in a standard beading machine.
- the beading tools were built up using assemblies of individual beading rings, allowing variation of the bead profile and bead groupings.
- the closed can should be able to withstand a certain prescribed minimum pressure difference over the can wall (external pressure less internal pressure) of e.g. 1.00, as well as axial load strength: the closed can should be able to withstand a minimum axial load as defined hereinabove of e.g. 1500 N, by combining a “vary wall thickness” and a “wall bead concept”.
- a certain prescribed minimum pressure difference over the can wall exital pressure less internal pressure
- axial load strength the closed can should be able to withstand a minimum axial load as defined hereinabove of e.g. 1500 N, by combining a “vary wall thickness” and a “wall bead concept”.
- Vary 7 6 1 F represents a can body according to the state of the art that is manufactured in an industrial can-making plant 2 G is a copy of F with vary wall thickness, manufactured using lab can-making equipment
- Each beading group had a specific bead depth, e.g. for test run B the top and bottom group (6 beads) 0.28 mm and 0.26 mm respectively, and the middle group (7 beads) 0.37 mm, see FIG. 4
- test run H The axial load and paneling strength properties of the can body manufactured from down gauged packaging steel (test run H), viz. axial load 2.22 kN and paneling strength 1.34 bar, easily meet even the strictest requirements. Results were fully reproducible and consistent throughout the whole production in the trial run.
- Test runs B, D and E produced satisfactory results and showed that a marked increase in axial and paneling performance is achieved in a vary wall thickness and vary bead depth food can according to the invention.
- FIG. 1 in particular schematically shows the left half of a known can body in unbeaded condition in longitudinal section.
- FIG. 2 in particular schematically shows the left half of a can body according to the invention in unbeaded condition in longitudinal section.
- the wavy line (black) most remote from the horizontal axis mentioning h represents the outer contour of a can body according to test run F.
- the horizontal axis represents h (in mm) as shown in FIG. 1 .
- the vertical axis represents the local can radius: An area above the wavy line lies outside the can body.
- the other line represents the thickness profile.
- the horizontal axis represents h (in mm) as shown in FIG. 1 .
- the vertical axis represents the local material thickness.
- FIG. 4 the lines represent the same aspects as in FIG. 3 , but now for a typical can body according to the invention, e.g. a can body according to test run E.
- the can body according to the invention has in combination a stepped wall thickness (“vary wall thickness”) and bead groups.
- the respective annular thinner and thicker wall portions coincide with bead groups having beads with a smaller or larger bead depth.
- bead depth may be in the order of e.g. 0.25 mm, and for those located in the middle region where h is from 38 to 68 mm, bead depth may be in the order of e.g. 0.40 mm.
- variable thickness and “vary bead profile” (such as in particular “vary bead depth”) may be optimised on a case by case basis to find the ideal balance for product performance and manufacturing effort in view of the specific packaging material to be used, e.g. packaging steel (tinplate) or aluminium sheet, polymer coated steel or aluminium sheet, the specific packaging variety, e.g. a two-piece DWI packaging, and the purpose e.g. to realise a heat treatable packaging for preserved foods.
- packaging steel titanium
- aluminium sheet polymer coated steel or aluminium sheet
- specific packaging variety e.g. a two-piece DWI packaging
- purpose e.g. to realise a heat treatable packaging for preserved foods.
Abstract
Description
- The invention relates to a can body comprising a beaded, essentially round cylindrical circumferential metal wall.
- Such a can body is known from e.g. EP0780314 disclosing a can-wall with beads wherein various parameters defining the bead geometry are disclosed. In particular in EP0780314 it is proposed to vary the bead length depending on local susceptibility to collapsing.
- According to the present invention it is an objective to improve can performance by improving axial load and paneling properties and to thereby create opportunities to reduce consumption of packaging material.
- Axial load is to be understood as a load on the can wall caused by forcing the top towards the bottom of the can.
- Paneling is to be understood as a phenomenon caused by forces acting on the can wall where the forces are essentially not parallel to the wall, such as forces exerted on the can wall if the assembled en closed can is put in a pressurised vessel.
- Although it is generally possible to increase either paneling strength or axial load strength, in the known can to a certain extent the one goes at the expense of the other.
- According to the invention it is now possible to produce a can body in which a suitable combination of axial load strength and local paneling strength can be achieved if the wall comprises purposively selected thick and thin walled annular sections and the wall is at least partly provided with beads.
- Until now, the extent to which one could use the effect of providing beads to increase the can wall's strength in one aspect was limited by the fact that the beads reduce the strength of the wall in another aspect. The inventors have realised that increasing the thickness of the material in the region where beading would be desirable could (more than) compensate for the relevant strength reduction.
- It was found that surprisingly, if a can body comprises a thicker annular wall portion in combination with beads according to a suitable beading profile, technically feasible and improved combinations of axial and paneling strength as required in certain packaging cans such as food cans, e.g. made by drawing and wall ironing (DWI), can be achieved, and consequently better can performance and new down-gauging possibilities come into reach.
- It should be noted that depending on the dimensions and properties of the packaging in question, the beads may be horizontal beads, i.e. beads that form an “endless groove”, the extreme of the “valley” lying in a plane perpendicular to the centre line of the can body, one or more spiral beads, or vertical beads.
- As the bead profile in particular also the orientation of the beads, will influence the increase and/or reduction of the local axial strength and paneling strength respectively, the effects of beading and “vary-thickness” can be varied and optimised taking also this factor of “shape and orientation of beading” into account.
- It is remarked that providing thick and thin walled annular sections in a can wall of a drawn and wall ironed can body is known e.g. from EP1294622 and U.S. Pat. No. 3,951,296. These publications concern cans with walls having at least one integrated reinforcing rib to achieve increased resistance against buckling of the wall and improved resistance against vacuum.
- In a preferred embodiment the can body according to the invention is one wherein the metal can wall is wall ironed, such as in a DWI can. As it is well established to mass produce wall ironed cans and as it is possible to perform wall ironing in such a way that a thicker annular wall portion is realised and considering that beading is a well established method step in can-making, such a can body according to the invention represents a very cost effective and reliable new packaging product.
- In a preferred embodiment of the invention the can body is provided with at least an annular portion of a relatively small wall thickness provided with relatively shallow beads and an annular portion of a relatively large wall thickness provided with relatively deep beads so as to increase the ratio mechanical performance/metal consumption.
- Mechanical performance should be understood as a combination of both adequate axial load strength and adequate paneling strength meeting the applicable requirements. Metal consumption should be understood as a term that may be expressed in the form of a volume, thickness or weight of the sheet metal used for the making the can body in question and/or of the material forming part of the resulting can body.
- By providing each annular portion of a can wall with locally optimised combinations of wall thickness and bead depth, it is possible to achieve a lower packaging metal consumption for a certain “mechanical” performance, or conversely better performance for the same metal consumption. This renders direct advantages of smaller material consumption, and further advantages regarding logistical and environmental aspects, e.g. in the form of reduction of weight to be transported and recycled in the distribution chain.
- In an embodiment the annular portion of relatively large wall thickness is positioned in the middle region of the wall. In essentially symmetrical packagings, e.g. food cans, the middle region of the wall will generally be most susceptible to paneling. Providing the annular portion of relatively large wall thickness in the middle region of the wall, enables provision of (heavier) beading to the extent required with a view to optimising axial load strength and paneling strength locally.
- In an embodiment there is an annular portion of relatively small wall thickness on either side of the annular portion of relatively large wall thickness. In a usual packaging, e.g. a known food can, the top and bottom region of the wall situated on either side of the middle region are supported by the lid and the bottom of the closed can respectively. In this embodiment, according to the invention, the top and bottom region are additionally supported by the annular portion of relatively large wall thickness positioned in the middle region of the wall. As a consequence the top and bottom region become less critical regions for the can performance aspects discussed here, and a smaller wall thickness can be realised there.
- The invention will now be explained in more detail in non-limitative examples describing experiments that were conducted and results that were obtained.
- Reference will be made also to the drawings showing in
-
FIG. 1 a schematic representation of the wall thickness at various locations of a known can body in unbeaded condition; -
FIG. 2 a schematic representation of the wall thickness at various location of a can body according to the invention in unbeaded condition; -
FIG. 3 a known can bead profile and a can wall thickness profile; -
FIG. 4 a can bead profile and a can wall thickness profile according to the invention. - In order to establish the effects of the invention, two types of drawn and wall ironed cans were used in a set of trials.
- One can type is a known standard Ø 73 mm 2 piece h0=110 mm drawn and wall ironed (DWI) beaded food can and the other can type is a can that is very similar to the standard can in appearance and dimensions, but has the features of the invention.
- All cans were made from T57CA standard tinplate, using conventional can-making processes including drawing and wall ironing (DWI) and beading.
- The can body according to the invention was drawn and wall ironed according to EP1294622 using a stepped punch to realise a “drawn and wall ironed vary wall thickness can”. The wall of the can body was subsequently provided with beads in a standard beading machine.
- In order to carry out investigations regarding different bead profiles, the beading tools were built up using assemblies of individual beading rings, allowing variation of the bead profile and bead groupings.
- The key issue was to seek improved can concepts in view of standard food can requirements, namely regarding paneling: the closed can should be able to withstand a certain prescribed minimum pressure difference over the can wall (external pressure less internal pressure) of e.g. 1.00, as well as axial load strength: the closed can should be able to withstand a minimum axial load as defined hereinabove of e.g. 1500 N, by combining a “vary wall thickness” and a “wall bead concept”. The following research programme of test runs was carried out:
-
TABLE 1 Test runs Thickness Bead profile Test Blank Thickness Nr beads Nr beads top run (mm) Can wall middle group bottom groups A 0.27 Vary 9 5 B 0.27 Vary 7 6 C 0.27 Vary 5 7 D 0.27 Vary 7 6 E 0.27 Vary 7 6 F1 0.27 Uniform 19 G2 0.27 Vary 19 H 0.26 Vary 7 6 1F represents a can body according to the state of the art that is manufactured in an industrial can-making plant 2G is a copy of F with vary wall thickness, manufactured using lab can-making equipment - In the cans according to the invention, the thicker annular portion of the wall produced coincided with the middle bead group, the beads running along the can wall being divided into 3 groups located in the top, middle and bottom region of the can wall respectively, see e.g.
FIG. 4 . - Each beading group had a specific bead depth, e.g. for test run B the top and bottom group (6 beads) 0.28 mm and 0.26 mm respectively, and the middle group (7 beads) 0.37 mm, see
FIG. 4 - The resulting paneling and axial load properties follow from table 2 below.
-
TABLE 2 Results Axial load Panelling Bead groups Test average Average (Nr. of beads) av. depth (mm) run (kN) (bar) Top-middle-bottom A 1.96 1.25 (5) 0.24 (9) 0.37 (5) 0.25 B 2.04 1.21 (6) 0.28 (7) 0.37 (6) 0.26 C 2.08 1.16 (7) 0.20 (5) 0.35 (7) 0.24 D 1.99 1.23 (6) 0.24 (7) 0.40 (6) 0.24 E 2.21 1.22 (6) 0.22 (7) 0.37 (6) 0.22 F 1.83 1.41 (19) 0.45 G 1.60 1.32 (19) 0.42 H 2.22 1.34 (6) 0.16 (7) 0.42 (6) 0.25 - Large series of more than 10000 units were produced during trial runs. The results proved that the new and inventive can bodies allow a packaging steel gauge reduction from 0.27 mm to 0.26 mm, the resulting can body according to the invention still complying with the applicable can strength requirements, this representing an impressive improvement.
- The axial load and paneling strength properties of the can body manufactured from down gauged packaging steel (test run H), viz. axial load 2.22 kN and paneling strength 1.34 bar, easily meet even the strictest requirements. Results were fully reproducible and consistent throughout the whole production in the trial run.
- Test runs B, D and E produced satisfactory results and showed that a marked increase in axial and paneling performance is achieved in a vary wall thickness and vary bead depth food can according to the invention.
- Thanks to this, further down gauging of the packaging steel in question to as thin as e.g. 0.255 mm and even thinner now becomes possible.
-
FIG. 1 in particular schematically shows the left half of a known can body in unbeaded condition in longitudinal section. For the average can body according to test run F, the wall at location h=1 mm had a thickness of 159 μm, at h=5 mm a thickness of 160 μm, near the middle of the wall at h=50 mm the material had a thickness of 122 μm, the bottom of the can being located at h0=110 mm. -
FIG. 2 in particular schematically shows the left half of a can body according to the invention in unbeaded condition in longitudinal section. The average can body according to test runs A, B, C, D, E, G, at h=1 mm had a thickness of 140 μm, in the top region at h1=28 mm a thickness of 113 μm, in the middle region at h2=54 mm a thickness of 138 μm, in the bottom region at h3=76 mm a thickness of 106 μm, the bottom of the can being located at h0=110 mm. - In
FIG. 3 the wavy line (black) most remote from the horizontal axis mentioning h, represents the outer contour of a can body according to test run F. The horizontal axis represents h (in mm) as shown inFIG. 1 . The vertical axis (dimension and scale not shown) represents the local can radius: An area above the wavy line lies outside the can body. - In
FIG. 3 the other line (grey) represents the thickness profile. Again the horizontal axis represents h (in mm) as shown inFIG. 1 . Here, the vertical axis (dimension and scale not shown) represents the local material thickness. - As is shown graphically in
FIG. 3 , the known beaded can has a constant material thickness over most of its can wall height, and a constant bead profile over its beaded region, running from h=approx. 18 mm to h=approx. 87 mm. - In
FIG. 4 the lines represent the same aspects as inFIG. 3 , but now for a typical can body according to the invention, e.g. a can body according to test run E. - As can be seen in
FIG. 4 , in a preferred embodiment the can body according to the invention has in combination a stepped wall thickness (“vary wall thickness”) and bead groups. The wall thickness e.g. is in the order of 110 μm from h=15 mm to h=35 mm, in the order of 140 μm from h=45 mm to h=60 mm, and in the order of 110 μm from h=70 mm to h<110 mm. The respective annular thinner and thicker wall portions coincide with bead groups having beads with a smaller or larger bead depth. - For the beads located in the top and bottom regions where h is from 18 mm to 38 mm and where h is from 68 mm to 88 mm, bead depth may be in the order of e.g. 0.25 mm, and for those located in the middle region where h is from 38 to 68 mm, bead depth may be in the order of e.g. 0.40 mm.
- As a result of the invention, it is possible to increase paneling strength where this is most desired, namely in the kind of cans under consideration in the mid-height region, but without unacceptably impairing the axial strength, because additional axial strength is provided by greater local material thickness.
- It will be understood that for different can configurations with regard to bottom construction, manufacturing process and lid attachment different thickness and bead profiles may apply and that the resulting effect of the combination of “vary thickness” and “vary bead profile” (such as in particular “vary bead depth”) may be optimised on a case by case basis to find the ideal balance for product performance and manufacturing effort in view of the specific packaging material to be used, e.g. packaging steel (tinplate) or aluminium sheet, polymer coated steel or aluminium sheet, the specific packaging variety, e.g. a two-piece DWI packaging, and the purpose e.g. to realise a heat treatable packaging for preserved foods.
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04077847 | 2004-10-15 | ||
EP04077847.4 | 2004-10-15 | ||
PCT/EP2005/010899 WO2006040116A2 (en) | 2004-10-15 | 2005-10-07 | Metal can body |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080116212A1 true US20080116212A1 (en) | 2008-05-22 |
Family
ID=34928573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/577,243 Abandoned US20080116212A1 (en) | 2004-10-15 | 2005-10-07 | Metal Can Body |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080116212A1 (en) |
EP (1) | EP1812184A2 (en) |
JP (1) | JP2008516854A (en) |
BR (1) | BRPI0516505A (en) |
CA (1) | CA2584196A1 (en) |
WO (1) | WO2006040116A2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070295051A1 (en) * | 2006-06-26 | 2007-12-27 | Myers Gary L | Expanding die and method of shaping containers |
US20100199741A1 (en) * | 2006-05-16 | 2010-08-12 | Alcoa Inc. | Manufacturing process to produce a necked container |
US20130299507A1 (en) * | 2012-05-08 | 2013-11-14 | Nestec S.A. | Containers having improved load-bearing capacity |
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 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011005540A (en) * | 2009-06-29 | 2011-01-13 | Nippon Steel Corp | Deep drawn box-shaped can and method of correcting wall canning of deep drawn box-shaped can |
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US919345A (en) * | 1906-11-21 | 1909-04-27 | Pressed Steel Tank Company | Metal barrel or cask. |
US1340675A (en) * | 1919-06-30 | 1920-05-18 | Harry B Rose | Annealing-box |
US1839272A (en) * | 1929-12-13 | 1932-01-05 | Sinko John | Process of making metallic containers |
US2329970A (en) * | 1942-02-11 | 1943-09-21 | Universal Oil Prod Co | Reaction vessel |
US3027044A (en) * | 1959-03-24 | 1962-03-27 | Hedwin Corp | Container or drum liner |
US3951296A (en) * | 1971-09-02 | 1976-04-20 | National Steel Corporation | Reinforced wall-ironed container |
US4681237A (en) * | 1983-03-28 | 1987-07-21 | Hoogovens Groep B.V. | Method for the manufacture of metal packaging cans, and a semi-product in the manufacture of such cans |
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DE2937001A1 (en) * | 1979-09-13 | 1981-04-02 | Schmalbach-Lubeca Gmbh, 3300 Braunschweig | METAL OPEN CONTAINER |
NL1001974C2 (en) * | 1995-12-22 | 1997-06-24 | Thomassen & Drijver | Bus wall with creases and bus. |
WO2001096209A1 (en) * | 2000-06-16 | 2001-12-20 | Corus Staal Bv | Metal can being a pressure tight metal packaging |
-
2005
- 2005-10-07 BR BRPI0516505-9A patent/BRPI0516505A/en not_active Application Discontinuation
- 2005-10-07 US US11/577,243 patent/US20080116212A1/en not_active Abandoned
- 2005-10-07 EP EP05797351A patent/EP1812184A2/en not_active Withdrawn
- 2005-10-07 WO PCT/EP2005/010899 patent/WO2006040116A2/en not_active Application Discontinuation
- 2005-10-07 JP JP2007536067A patent/JP2008516854A/en not_active Withdrawn
- 2005-10-07 CA CA002584196A patent/CA2584196A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US919345A (en) * | 1906-11-21 | 1909-04-27 | Pressed Steel Tank Company | Metal barrel or cask. |
US1340675A (en) * | 1919-06-30 | 1920-05-18 | Harry B Rose | Annealing-box |
US1839272A (en) * | 1929-12-13 | 1932-01-05 | Sinko John | Process of making metallic containers |
US2329970A (en) * | 1942-02-11 | 1943-09-21 | Universal Oil Prod Co | Reaction vessel |
US3027044A (en) * | 1959-03-24 | 1962-03-27 | Hedwin Corp | Container or drum liner |
US3951296A (en) * | 1971-09-02 | 1976-04-20 | National Steel Corporation | Reinforced wall-ironed container |
US4681237A (en) * | 1983-03-28 | 1987-07-21 | Hoogovens Groep B.V. | Method for the manufacture of metal packaging cans, and a semi-product in the manufacture of such cans |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100199741A1 (en) * | 2006-05-16 | 2010-08-12 | Alcoa Inc. | Manufacturing process to produce a necked container |
US8322183B2 (en) | 2006-05-16 | 2012-12-04 | Alcoa Inc. | Manufacturing process to produce a necked container |
US20070295051A1 (en) * | 2006-06-26 | 2007-12-27 | Myers Gary L | Expanding die and method of shaping containers |
US20080022746A1 (en) * | 2006-06-26 | 2008-01-31 | Myers Gary L | Method of Manufacturing Containers |
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 |
US20110167889A1 (en) * | 2006-06-26 | 2011-07-14 | Alcoa Inc. | Expanding die and method of shaping 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 |
US20130299507A1 (en) * | 2012-05-08 | 2013-11-14 | Nestec S.A. | Containers having improved load-bearing capacity |
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 |
Also Published As
Publication number | Publication date |
---|---|
WO2006040116A2 (en) | 2006-04-20 |
JP2008516854A (en) | 2008-05-22 |
BRPI0516505A (en) | 2008-09-16 |
EP1812184A2 (en) | 2007-08-01 |
WO2006040116A3 (en) | 2006-06-22 |
CA2584196A1 (en) | 2006-04-20 |
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