US20140197181A1 - Three-piece can - Google Patents
Three-piece can Download PDFInfo
- Publication number
- US20140197181A1 US20140197181A1 US14/211,959 US201414211959A US2014197181A1 US 20140197181 A1 US20140197181 A1 US 20140197181A1 US 201414211959 A US201414211959 A US 201414211959A US 2014197181 A1 US2014197181 A1 US 2014197181A1
- Authority
- US
- United States
- Prior art keywords
- diameter
- piece
- cylindrical body
- cans
- section
- 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
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/02—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape
- B65D7/04—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by shape of curved cross-section, e.g. cans of circular or elliptical cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
- B65D7/42—Details of metal walls
- B65D7/44—Reinforcing or strengthening parts or members
- B65D7/46—Corrugations
Definitions
- the object of the present application is to provide a can for processed or non-processed foods, for use by food companies or others. Said can has an enhanced construction in order to improve its use and efficiency over existing similar ones.
- Cans for foods and other uses generally comprise three pieces with welded cylindrical bodies, seamed by a mechanical process at their upper ends by a top and at their lower ends by a bottom of the same shape, are already known in the state of the art. Said cans may or may not be provided with rims in the cylindrical body to reinforce it, allowing the use of thin sheets.
- the present invention relates to a three-piece can, having a cylindrical shape with a top and a bottom of different diameters.
- One of the ends undergoes an expansion process (increase in diameter or necking-out), but within certain limits not to compromise its rolling on flat guides and surfaces minimizing friction of the external part of the cylindrical body having a coating or artwork while rolling.
- Said can may also be piled up, since it is provided with top and bottom of different diameters which fit in when stacked.
- This embodiment of the can solves the above inconveniences, since the expanded cylindrical shape of the assembly allows for appropriate flexibility during the use, meeting various forms of use of stackable cans with the artwork already printed on the cylindrical body, especially in automatic thermal processing equipment of continous rotating type (cooker cooler) where rolling of the can is required.
- the can according to the invention also has the advantage of allowing the final user to open the can at either end with a conventional can opener, usually at the cleanest end due to stacking.
- FIG. 1 is a partial cross section of a conventional three-piece can with top and bottom of same diameter
- FIG. 2 is a partial cross section of a conventional three-piece can with top and bottom of different diameters and reduced diameter at one of the ends of the tube (necking);
- FIG. 3 is a partial cross section of a can according to the present invention, provided with an expansion of its upper part (necked out);
- FIG. 4 is a view of a stack of cans of the present invention.
- FIG. 5 is a detailed view of a can rolling over a flat surface, showing the lack of contact between the body of the can (tube) and the surface due to the presence of a free space (gap).
- the present invention is directed to a can L, made of a welded body 1 , which is initially cylindrical and which subsequently has one of its edges expanded (necked-out), the body 1 is optionally provided with reinforcement ribs 2 in its body when the metal sheet to form the body 1 is thin.
- the can L is preferably made of tinplate and/or chrome- plated steel, appropriately smoothed and printed with the artwork defined by the user.
- the cylindrical body 1 is formed by the conventional process of plate cutting, formation of the body, calendering and welding. Initially, the body 1 is built with the base dimension (smaller), the tube is expanded at one of its ends (necked-out), the flange (flap) is formed and subsequently the ribs 2 for radial reinforcement of the can L.
- Said can L has an upper closing consisting of a conventional or easy-to-open top 3 and a conventional or easy-to-open bottom 4 .
- Said top 3 or bottom 4 is seamed at one of the ends according to the needs of the user. When seamed, said top 3 and bottom 4 form upper 5 and lower 6 ends that support the body of the can when it is rolled.
- Said ends 3 , 4 have different diameters, wherein the difference between them should be comprised within a range between 2 and 6 mm.
- Said difference between diameters defines a range where the difference cannot be higher than 4 mm to allow the can to roll around its axis without deviation and, at the same time, allow it to be piled up.
- the table below shows the ratio between the diameter of the top 3 and bottom 4 :
- FIG. 3 illustrates a three-piece can in accordance of preset invention.
- the three-piece can L may also be defined by comprising a cylindrical body ( 1 ), a top ( 3 ) and a bottom ( 4 ).
- the cylindrical body ( 1 ) is seamed to both top ( 3 ) and bottom ( 4 ) so forming an upper seam ( 5 ) and a lower seam ( 6 ), respectively.
- top ( 3 ) is a usually know as easy-to-open top.
- the cylindrical body ( 1 ) comprises a first section having a first diameter C, a second expanded section having a second diameter D larger than first diameter C.
- first diameter C the total top diameter B of can L is first diameter C plus twice the seam thickness.
- second expanded diameter D the total bottom diameter A of can L is second expanded diameter D plus twice the seam thickness.
- first C and second D diameters differs from 2 mm to 4 mm.
- second expanded diameter D is 3 mm larger than first diameter C.
- the first section of cylindrical body ( 1 ) is H2 height and the second expanded section is H1 height.
- the total height of the cylindrical body ( 1 ) is H1+H2 and the total height of can L is the cylindrical body height (H1+H2) plus twice upper or lower seam height, as upper seam ( 5 ) and lower seam ( 6 ) are basically equal to each other.
- the can is sent to the user with one of the ends (larger or smaller) already seamed according to the client's requirements and/or tooling in the client's plant to close the cans after product filling.
- the roling of the can L without harm to its body 1 is guaranteed by the support given by the upper 5 and lower 6 edges, which create a gap as shown in FIG. 5 .
- the present invention presents several advantages to the conventional models, since the cans may be processed in continuous rotating autoclave systems (cooker cooler systems), and the cans may be stacked.
- the proposed can with said construction, may be made in diverse sizes and capacities to meet different needs of users of this kind of packaging.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Stackable Containers (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
A can for processed or non-processed foods is provided, for use by food companies or others, which is a three-piece can and which has a cylindrical shape. One of the ends is expanded (necked-out), thus top and bottom have different diameters, but within limits not to compromise rolling on flat surfaces and guides minimizing friction between the external part of the cylindrical body with the finish or artwork while rolling. The can may also be stacked, since it is provided with different diameters top and bottom, which fit in when stacked.
Description
- The present application is a Continuation of U.S. patent application Ser. No. 13/233,201, filed Sep. 15, 2011, which claims priority under 35 U.S.C. Section 119 to Brazilian Patent application number MU 9002109-6 filed Sep. 17, 2010, the entire contents of which are hereby incorporated by reference.
- The object of the present application is to provide a can for processed or non-processed foods, for use by food companies or others. Said can has an enhanced construction in order to improve its use and efficiency over existing similar ones.
- Cans for foods and other uses generally comprise three pieces with welded cylindrical bodies, seamed by a mechanical process at their upper ends by a top and at their lower ends by a bottom of the same shape, are already known in the state of the art. Said cans may or may not be provided with rims in the cylindrical body to reinforce it, allowing the use of thin sheets.
- There are two basic types for these cans:
-
- Three-piece cans with top and bottom of same diameter—These can are made of welded cylindrical bodies (tubes), which are calendered and welded into the final diameter of the can, then receiving conventional processes of flap formation, beading and closing the top or bottom according to clients' requirements. One example of this kind of can is seen in
FIG. 1 of the state of the art. - Three-piece cans with bigger top and smaller bottom in diameter—These are made of welded cylindrical bodies (tubes), calendered and welded in the final diameter of the can, with an additional process of diameter reduction on one of the ends of the tube (necking), then followed by conventional processes of flap formation, beading and closing the smaller diameter bottom, allowing the stacking of filled cans by the difference between top and bottom diameters. One example of this kind of can is shown in
FIG. 2 of the state of the art.
- Three-piece cans with top and bottom of same diameter—These can are made of welded cylindrical bodies (tubes), which are calendered and welded into the final diameter of the can, then receiving conventional processes of flap formation, beading and closing the top or bottom according to clients' requirements. One example of this kind of can is seen in
- With the advent of sterilization in continuous rotating autoclave (cooker cooler), the two kinds of cans mentioned above have shown some unsurmountable inconveniences for their processing:
-
- Three-piece cans with top and bottom of same diameter—In this case, the rolling process of cans used in the continuous rotating autoclave is easily performed, and the body of the cans (tube) may be previously printed, with no loss in print quality after the rolling process. However, this solution harms the correct stacking, since the cans do not fit with each other.
- Three-piece cans with larger top and smaller bottom in diameter with diameter reduction at one of the ends of the tube (necking). These cans have the advantage of being easily stacked. The neck-in is made on the can by the hanging of one of the ends of the can whose single objective is to improve stacking. To prevent the can from rolling around its own axis due to the big difference between the top and the bottom of the can, an additional rim (reinforcement) on the body near the smaller bottom is required, so that the friction during the process may allow the can to be rolled in the continuous sterilization system without damaging the body of the can. In this case, excessive friction damages the artwork, finish and/or tin from the body of the can at that reinforcement point. Due to this problem, the can is only labeled afterwards, creating additional processing steps and lowering process speed. Furthermore, due to its smaller diameter top, this kind of can is more difficult to open with conventional can openers because of the neck formed in the cylindrical body at that point to fasten the smaller top, which makes the correct placement of the opener more difficult.
- Bearing the above in mind and in order to overcome the mentioned problems, the present invention has been developed. It relates to a three-piece can, having a cylindrical shape with a top and a bottom of different diameters. One of the ends undergoes an expansion process (increase in diameter or necking-out), but within certain limits not to compromise its rolling on flat guides and surfaces minimizing friction of the external part of the cylindrical body having a coating or artwork while rolling. Said can may also be piled up, since it is provided with top and bottom of different diameters which fit in when stacked.
- This embodiment of the can solves the above inconveniences, since the expanded cylindrical shape of the assembly allows for appropriate flexibility during the use, meeting various forms of use of stackable cans with the artwork already printed on the cylindrical body, especially in automatic thermal processing equipment of continous rotating type (cooker cooler) where rolling of the can is required. The can according to the invention also has the advantage of allowing the final user to open the can at either end with a conventional can opener, usually at the cleanest end due to stacking.
- To better visualize the present invention, the attached figures are presented as mere examples, not limiting the present application, wherein:
-
FIG. 1 is a partial cross section of a conventional three-piece can with top and bottom of same diameter; -
FIG. 2 is a partial cross section of a conventional three-piece can with top and bottom of different diameters and reduced diameter at one of the ends of the tube (necking); -
FIG. 3 is a partial cross section of a can according to the present invention, provided with an expansion of its upper part (necked out); -
FIG. 4 is a view of a stack of cans of the present invention; and -
FIG. 5 is a detailed view of a can rolling over a flat surface, showing the lack of contact between the body of the can (tube) and the surface due to the presence of a free space (gap). - The object of the present invention will be disclosed based on the above listed figures given as examples, but not limiting the scope of protection of the present model, wherein the final can is generically indicated as L.
- The present invention is directed to a can L, made of a
welded body 1, which is initially cylindrical and which subsequently has one of its edges expanded (necked-out), thebody 1 is optionally provided withreinforcement ribs 2 in its body when the metal sheet to form thebody 1 is thin. - The can L is preferably made of tinplate and/or chrome- plated steel, appropriately smoothed and printed with the artwork defined by the user. The
cylindrical body 1 is formed by the conventional process of plate cutting, formation of the body, calendering and welding. Initially, thebody 1 is built with the base dimension (smaller), the tube is expanded at one of its ends (necked-out), the flange (flap) is formed and subsequently theribs 2 for radial reinforcement of the can L. - Said can L has an upper closing consisting of a conventional or easy-to-open top 3 and a conventional or easy-to-
open bottom 4. Said top 3 orbottom 4 is seamed at one of the ends according to the needs of the user. When seamed, said top 3 andbottom 4 form upper 5 and lower 6 ends that support the body of the can when it is rolled. - Said
ends 3, 4 have different diameters, wherein the difference between them should be comprised within a range between 2 and 6 mm. Said difference between diameters defines a range where the difference cannot be higher than 4 mm to allow the can to roll around its axis without deviation and, at the same time, allow it to be piled up. As an example, the table below shows the ratio between the diameter of the top 3 and bottom 4: -
Top (3) Bottom (4) 49 52 57 60 62 65 70 73 80 83 96 99 124 127 152 155 -
FIG. 3 illustrates a three-piece can in accordance of preset invention. The three-piece can L may also be defined by comprising a cylindrical body (1), a top (3) and a bottom (4). The cylindrical body (1) is seamed to both top (3) and bottom (4) so forming an upper seam (5) and a lower seam (6), respectively. Preferentially, top (3) is a usually know as easy-to-open top. - The cylindrical body (1) comprises a first section having a first diameter C, a second expanded section having a second diameter D larger than first diameter C. As the seam thickness for upper or lower seams are basically equal to each other, it came out that the total top diameter B of can L is first diameter C plus twice the seam thickness. In the same sense, the total bottom diameter A of can L is second expanded diameter D plus twice the seam thickness. As it will be clear to a technician in the art, the difference between total diameters D and C is equal to the difference between diameters A and B. According to present invention, first C and second D diameters differs from 2 mm to 4 mm. Preferably, second expanded diameter D is 3 mm larger than first diameter C.
- Also, the first section of cylindrical body (1) is H2 height and the second expanded section is H1 height. This way, the total height of the cylindrical body (1) is H1+H2 and the total height of can L is the cylindrical body height (H1+H2) plus twice upper or lower seam height, as upper seam (5) and lower seam (6) are basically equal to each other.
- The can is sent to the user with one of the ends (larger or smaller) already seamed according to the client's requirements and/or tooling in the client's plant to close the cans after product filling.
- If the user makes use of continuous rotating equipment (cooker cooler), the roling of the can L without harm to its
body 1 is guaranteed by the support given by the upper 5 and lower 6 edges, which create a gap as shown inFIG. 5 . - The present invention presents several advantages to the conventional models, since the cans may be processed in continuous rotating autoclave systems (cooker cooler systems), and the cans may be stacked.
- In addition, the user will not need tooling adaptations, since the closing process is conventional and the tops and bottoms used are those which are already abundant on the market.
- The proposed can, with said construction, may be made in diverse sizes and capacities to meet different needs of users of this kind of packaging.
Claims (4)
1. A three-piece can comprising a cylindrical body, a top and a bottom, the cylindrical body being seamed to both top and bottom forming an upper seam and a lower seam respectively, wherein said cylindrical body comprises a first section having a first diameter (C), a second expanded section having a second diameter (D) larger than first diameter (C), said first and second diameters differing by 2 mm to 4 mm, and wherein the upper and bottom seams defining support edges for the can to be rolled on flat surfaces.
2. The three-piece can of claim 1 , wherein second expanded diameter (D) is 3 mm larger than first diameter (C).
3. The three-piece can of claim 1 , wherein the first section of cylindrical body has a first height (H2), the second expanded section has a second height (H1), and wherein the first height (H2) is 5 to 50 times the first height (H1).
4. The three-piece can of claim 1 , wherein the first section of cylindrical body comprises ribs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/211,959 US20140197181A1 (en) | 2010-09-17 | 2014-03-14 | Three-piece can |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRMU9002109-6U BRMU9002109U2 (en) | 2010-09-17 | 2010-09-17 | canned three piece improvement |
BRMU9002109-6 | 2010-09-17 | ||
US13/233,201 US20120067905A1 (en) | 2010-09-17 | 2011-09-15 | Three-piece can |
US14/211,959 US20140197181A1 (en) | 2010-09-17 | 2014-03-14 | Three-piece can |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/233,201 Continuation US20120067905A1 (en) | 2010-09-17 | 2011-09-15 | Three-piece can |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140197181A1 true US20140197181A1 (en) | 2014-07-17 |
Family
ID=44677362
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/233,201 Abandoned US20120067905A1 (en) | 2010-09-17 | 2011-09-15 | Three-piece can |
US14/211,959 Abandoned US20140197181A1 (en) | 2010-09-17 | 2014-03-14 | Three-piece can |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/233,201 Abandoned US20120067905A1 (en) | 2010-09-17 | 2011-09-15 | Three-piece can |
Country Status (8)
Country | Link |
---|---|
US (2) | US20120067905A1 (en) |
EP (1) | EP2431288B8 (en) |
CN (1) | CN102442457A (en) |
BR (1) | BRMU9002109U2 (en) |
DK (1) | DK2431288T3 (en) |
ES (1) | ES2437169T3 (en) |
PL (1) | PL2431288T3 (en) |
PT (1) | PT2431288E (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9061787B2 (en) * | 2010-09-29 | 2015-06-23 | Nippon Steel & Sumitomo Metal Corporation | Three-piece resealable can for acidic liquid |
CN105015875A (en) * | 2015-07-07 | 2015-11-04 | 句容市三圆制桶有限公司 | Corrugated smooth type steel barrel |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US911084A (en) * | 1907-08-07 | 1909-02-02 | American Can Co | Sheet-steel vessel. |
US1770163A (en) * | 1927-07-08 | 1930-07-08 | Pittsburgh Steel Drum Company | Shipping drum and method of making the same |
US2182813A (en) * | 1934-05-12 | 1939-12-12 | American Can Co | Container |
US2432835A (en) * | 1944-07-18 | 1947-12-16 | Continental Can Co | Hook seam container and closure joint |
US2771213A (en) * | 1953-11-25 | 1956-11-20 | James R Lewis | Stacking can |
NL168731C (en) * | 1972-07-05 | 1982-05-17 | Leer Koninklijke Emballage | METHOD FOR RECONDITIONING A VESSEL. |
US4936482A (en) * | 1987-11-13 | 1990-06-26 | Van Dorn Company | Ringless paint container |
US5320468A (en) * | 1990-07-13 | 1994-06-14 | Kramer Antonio H | Tin can manufacturing process |
JP2000502979A (en) * | 1996-01-04 | 2000-03-14 | マース ユー.ケー.リミテッド | Stackable metal cans |
BR9600045A (en) * | 1996-01-10 | 1998-01-21 | Rojek Metalgrafica | Improvements in vacuum-closing cans with non-seamed, easy-to-open metal lids for food product packaging |
JPH10129660A (en) * | 1996-11-05 | 1998-05-19 | Nagase Inteko Kk | Container made of metal |
US5878906A (en) * | 1997-03-26 | 1999-03-09 | Kraft Foods, Inc. | Ventable container |
CN2851152Y (en) * | 2005-09-01 | 2006-12-27 | 罗增勇 | Paper made composite package can |
EP2157023B1 (en) * | 2008-08-21 | 2014-10-22 | Ardagh MP Group Netherlands B.V. | Lid for a can and method for orientating such a lid |
-
2010
- 2010-09-17 BR BRMU9002109-6U patent/BRMU9002109U2/en not_active IP Right Cessation
-
2011
- 2011-09-15 US US13/233,201 patent/US20120067905A1/en not_active Abandoned
- 2011-09-16 ES ES11007568.6T patent/ES2437169T3/en active Active
- 2011-09-16 EP EP11007568.6A patent/EP2431288B8/en not_active Not-in-force
- 2011-09-16 PL PL11007568T patent/PL2431288T3/en unknown
- 2011-09-16 PT PT110075686T patent/PT2431288E/en unknown
- 2011-09-16 CN CN201110276965XA patent/CN102442457A/en active Pending
- 2011-09-16 DK DK11007568.6T patent/DK2431288T3/en active
-
2014
- 2014-03-14 US US14/211,959 patent/US20140197181A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP2431288B1 (en) | 2013-08-28 |
BRMU9002109U2 (en) | 2013-01-01 |
PL2431288T3 (en) | 2014-03-31 |
PT2431288E (en) | 2013-11-11 |
DK2431288T3 (en) | 2013-12-09 |
ES2437169T3 (en) | 2014-01-09 |
US20120067905A1 (en) | 2012-03-22 |
CN102442457A (en) | 2012-05-09 |
EP2431288A1 (en) | 2012-03-21 |
EP2431288B8 (en) | 2013-10-30 |
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AS | Assignment |
Owner name: RIMET EMPREENDIMENTOS INDUSTRIAIS E COMERCIAIS S.A Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAKAHARA, PEDRO SHIGUERU;SANTOS, JAIRO CARLOS DOS;REEL/FRAME:032444/0026 Effective date: 20140310 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |