CA2057755C - Can bodies - Google Patents
Can bodiesInfo
- Publication number
- CA2057755C CA2057755C CA002057755A CA2057755A CA2057755C CA 2057755 C CA2057755 C CA 2057755C CA 002057755 A CA002057755 A CA 002057755A CA 2057755 A CA2057755 A CA 2057755A CA 2057755 C CA2057755 C CA 2057755C
- Authority
- CA
- Canada
- Prior art keywords
- panels
- central portion
- wall
- wall thickness
- 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.)
- Expired - Fee Related
Links
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
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
2~77~
CAN BODIES
Backqround of the Invention Field of the Invention 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.
Description of the Prior Art 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.
SummarY of the Invention 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 in one aspect provides a metal can body for a beverage can made by drawing and ironing sheet metal to comprise a bottom end wall and a generally cylindrical side wall, the side wall comprising a bottom portion of circular cross section connected to the bottom wall, a central portion of constant wall thickness extending above the bottom portion and a top portion of circular cross-section extending above the central portion and terminating in an open end. 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 cylindrical zones of reducing wall thickness. The side wall is provided with a plurality of parallel sided panels each joined to the next by an externally convex longitudinal rib, the ribs and panels being equally spaced around the circumference of the can body and the ribs and panels terminate at either end within the zones of reducing wall thickness.
Brief DescriPtion of the Drawinqs Figure 1 shows a partial section of a can body prior to provision of the longitudinal ribs;
20~775~
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 lO is an axial section through a mandrel for forming a can body.
Description of the Preferred Embodiments Referring to Figures 1-4 it will be seen that the can body l 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 _ - 4 -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 O.lmm (.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 2~775~
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 lO
and panels ll. 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 ll are outwardly concave and have a radius U. The concavity of the panels ll 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 lmm. 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 lO, the panels are substantially flat. In this case the ribs lO 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 20~i77~
_ - 6 -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 20577~5 _ -- 7 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 40xlO 4 inches is comparable to that of unpanelled can bodies of wall thickness 43xlO 4 inches.
Considering the large number of can bodies made, this represents a very significant saving.
CAN BODIES
Backqround of the Invention Field of the Invention 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.
Description of the Prior Art 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.
SummarY of the Invention 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 in one aspect provides a metal can body for a beverage can made by drawing and ironing sheet metal to comprise a bottom end wall and a generally cylindrical side wall, the side wall comprising a bottom portion of circular cross section connected to the bottom wall, a central portion of constant wall thickness extending above the bottom portion and a top portion of circular cross-section extending above the central portion and terminating in an open end. 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 cylindrical zones of reducing wall thickness. The side wall is provided with a plurality of parallel sided panels each joined to the next by an externally convex longitudinal rib, the ribs and panels being equally spaced around the circumference of the can body and the ribs and panels terminate at either end within the zones of reducing wall thickness.
Brief DescriPtion of the Drawinqs Figure 1 shows a partial section of a can body prior to provision of the longitudinal ribs;
20~775~
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 lO is an axial section through a mandrel for forming a can body.
Description of the Preferred Embodiments Referring to Figures 1-4 it will be seen that the can body l 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 _ - 4 -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 O.lmm (.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 2~775~
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 lO
and panels ll. 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 ll are outwardly concave and have a radius U. The concavity of the panels ll 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 lmm. 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 lO, the panels are substantially flat. In this case the ribs lO 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 20~i77~
_ - 6 -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 20577~5 _ -- 7 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 40xlO 4 inches is comparable to that of unpanelled can bodies of wall thickness 43xlO 4 inches.
Considering the large number of can bodies made, this represents a very significant saving.
Claims (12)
1. A metal can body for a beverage can made by drawing and ironing sheet metal to comprise a bottom end wall and a generally cylindrical side wall, the side wall comprising a bottom portion of circular cross section connected to the bottom wall, a central portion of constant wall thickness extending above the bottom portion and a top portion of circular cross-section extending above 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 cylindrical zones of reducing wall thickness, characterized in that the side wall is provided with a plurality of parallel sided panels each joined to the next by an externally convex longitudinal rib, said ribs and panels being equally spaced around the circumference of the can body and in that the ribs and panels terminate at either end within the zones of reducing wall thickness.
2. A metal can body as claimed in claim 1 wherein each panel has 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 claim 1 wherein the number of panels is from 24 to 45.
6. A metal can body as claimed in claim 5 wherein the number of panels is about 30.
7. A method of forming a can body for a beverage can according to claim 1 comprising the steps of:
a) 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 to form a can body comprising a bottom end wall and a generally cylindrical side wall, the side wall comprising a bottom portion of circular cross-section connected to the bottom end wall, a central portion extending above the bottom portion and a top portion of circular cross-section extending above the central portion and terminating in an open end, wherein the top portion and bottom portion are formed to have a greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower cylindrical zones of reducing wall thickness;
the method being characterized by the subsequent step of b) forming, without further stretching, a plurality of parallel sided panels in the sidewall, each formed to the next by an externally convex longitudinal rib, said ribs and panels being equally spaced around the circumference of the can body, wherein the ribs and panels terminate at both their ends within the zones of reducing wall thickness.
a) 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 to form a can body comprising a bottom end wall and a generally cylindrical side wall, the side wall comprising a bottom portion of circular cross-section connected to the bottom end wall, a central portion extending above the bottom portion and a top portion of circular cross-section extending above the central portion and terminating in an open end, wherein the top portion and bottom portion are formed to have a greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower cylindrical zones of reducing wall thickness;
the method being characterized by the subsequent step of b) forming, without further stretching, a plurality of parallel sided panels in the sidewall, each formed to the next by an externally convex longitudinal rib, said ribs and panels being equally spaced around the circumference of the can body, wherein the ribs and panels terminate at both their ends within the zones of reducing wall thickness.
8. A drawn metal can body for a beverage can comprising a bottom end wall and a generally cylindrical side wall, the generally cylindrical side wall including a bottom portion connected to the bottom end 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 each of a peripherally continuous configuration and are of greater wall thickness than the central portion and are respectively connected to the central portion through upper and lower drawn annular zones of substantial reducing wall thickness which reduce in an axial direction toward each other, said generally cylindrical side wall is provided with a plurality of parallel externally convex longitudinal ribs equally spaced around the circumference and terminating at opposite rib ends lying within and terminating within the drawn annular zones of substantial reducing wall thickness, an elongated panel between adjacent longitudinal ribs, each elongated panel having oppositely disposed semi-elliptical shaped end portions and said semi-elliptical shaped end portions lie within and terminate within the drawn annular zones of substantial reducing wall thickness.
9. A metal can body as claimed in claim 8 wherein the elongated panels are outwardly concave.
10. A metal can body as claimed in claim 8 wherein the elongated panels are substantially flat.
11. A metal can body as claimed in claim 8 wherein the number of panels is from 24 to 45.
12. A metal can body as claimed in claim 11 wherein the number of panels is about 30.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9027851A GB2250972B (en) | 1990-12-21 | 1990-12-21 | Can bodies |
| GB9027851.6 | 1990-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2057755A1 CA2057755A1 (en) | 1992-06-22 |
| CA2057755C true CA2057755C (en) | 1996-01-09 |
Family
ID=10687472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002057755A Expired - Fee Related CA2057755C (en) | 1990-12-21 | 1991-12-16 | 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) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279442A (en) * | 1991-12-18 | 1994-01-18 | Ball Corporation | Drawn and ironed container and apparatus and method for forming same |
| 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 |
| EP0773843A1 (en) * | 1995-06-07 | 1997-05-21 | American National Can Company | Reshaped container and method and apparatus for reshaping a container |
| US5727414A (en) * | 1995-06-07 | 1998-03-17 | American National Can Company | Method for reshaping a container |
| US5704244A (en) * | 1995-06-07 | 1998-01-06 | American National Can Company | Apparatus for reshaping a container |
| JP3441317B2 (en) * | 1996-10-21 | 2003-09-02 | 大和製罐株式会社 | Method for producing deformed metal can having irregular pattern on body |
| US7726165B2 (en) | 2006-05-16 | 2010-06-01 | 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 |
| PL2605873T3 (en) | 2010-08-20 | 2022-04-11 | Kaiser Aluminum Warrick, Llc | 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 |
| 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 |
| PL426328A1 (en) * | 2018-03-20 | 2019-09-23 | Can-Pack Spółka Akcyjna | Metal can |
Family Cites Families (12)
| 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 |
| 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 |
| US4169537A (en) * | 1978-03-22 | 1979-10-02 | Centennial Plastics Co., Inc. | Storage drum |
| CH656366A5 (en) * | 1981-05-12 | 1986-06-30 | Cantec Inc | THIN WALL PAN. |
| DE3216660A1 (en) * | 1981-05-12 | 1982-12-16 | Cantec, Inc., Fort Worth, Tex. | Can made of thin-walled material and method of its manufacture |
| DE3118783C2 (en) * | 1981-05-12 | 1986-02-20 | Cantec, Inc., Fort Worth, Tex. | Device for beading the body of a sheet metal container |
| US4578976A (en) * | 1984-04-09 | 1986-04-01 | National Can Corporation | Container processing apparatus |
| GB8923909D0 (en) * | 1989-10-24 | 1989-12-13 | Metal Box Plc | Containers |
-
1990
- 1990-12-21 GB GB9027851A patent/GB2250972B/en not_active Expired - Fee Related
-
1991
- 1991-11-27 ZA ZA919369A patent/ZA919369B/en unknown
- 1991-11-28 MY MYPI91001883A patent/MY107646A/en unknown
- 1991-12-03 KR KR1019910022079A patent/KR0141910B1/en not_active IP Right Cessation
- 1991-12-04 AU AU88393/91A patent/AU655440B2/en not_active Ceased
- 1991-12-05 ES ES91311334T patent/ES2059064T3/en not_active Expired - Lifetime
- 1991-12-05 NZ NZ240877A patent/NZ240877A/en unknown
- 1991-12-05 EP EP91311334A patent/EP0492861B1/en not_active Revoked
- 1991-12-05 DE DE69103254T patent/DE69103254T2/en not_active Revoked
- 1991-12-05 DK DK91311334.6T patent/DK0492861T3/en active
- 1991-12-05 AT AT91311334T patent/ATE109419T1/en not_active IP Right Cessation
- 1991-12-16 CA CA002057755A patent/CA2057755C/en not_active Expired - Fee Related
- 1991-12-17 JP JP3333583A patent/JPH04311445A/en active Pending
- 1991-12-18 MX MX9102668A patent/MX9102668A/en not_active IP Right Cessation
- 1991-12-19 PL PL91292871A patent/PL166562B1/en unknown
- 1991-12-20 BR BR919105559A patent/BR9105559A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NZ240877A (en) | 1993-07-27 |
| EP0492861A1 (en) | 1992-07-01 |
| MX9102668A (en) | 1992-06-01 |
| MY107646A (en) | 1996-05-30 |
| GB2250972A (en) | 1992-06-24 |
| KR0141910B1 (en) | 1998-07-15 |
| GB2250972B (en) | 1994-05-04 |
| EP0492861B1 (en) | 1994-08-03 |
| GB9027851D0 (en) | 1991-02-13 |
| PL292871A1 (en) | 1992-06-26 |
| AU655440B2 (en) | 1994-12-22 |
| PL166562B1 (en) | 1995-06-30 |
| AU8839391A (en) | 1992-06-25 |
| DE69103254D1 (en) | 1994-09-08 |
| ES2059064T3 (en) | 1994-11-01 |
| KR920011874A (en) | 1992-07-25 |
| DE69103254T2 (en) | 1994-11-24 |
| ATE109419T1 (en) | 1994-08-15 |
| BR9105559A (en) | 1992-09-01 |
| DK0492861T3 (en) | 1994-11-07 |
| CA2057755A1 (en) | 1992-06-22 |
| ZA919369B (en) | 1993-05-27 |
| JPH04311445A (en) | 1992-11-04 |
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