US3690507A - Profiled bottom wall for extruded and wall ironed cans - Google Patents

Profiled bottom wall for extruded and wall ironed cans Download PDF

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Publication number
US3690507A
US3690507A US32526A US3690507DA US3690507A US 3690507 A US3690507 A US 3690507A US 32526 A US32526 A US 32526A US 3690507D A US3690507D A US 3690507DA US 3690507 A US3690507 A US 3690507A
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US
United States
Prior art keywords
wall
annular
bottom wall
chime
body wall
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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 - Lifetime
Application number
US32526A
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English (en)
Inventor
Walter J Gailus
James R Hoenig
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Continental Can Co Inc
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Continental Can Co Inc
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Filing date
Publication date
Application filed by Continental Can Co Inc filed Critical Continental Can Co Inc
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Publication of US3690507A publication Critical patent/US3690507A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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

Definitions

  • AB TRACT A profiled bottom wall for drawn, extruded and/or 521 U.S.Cl .2201, 220/70 Wall ironed cans having improved resistance against 51 Int. Cl. ..B65d 7/42 buckling under the internal Pressure of a Packaged [58] Field of Search 70 72/267 348 medium.
  • the profiled bottom wall includes an annular chime projecting inwardly and upwardly from the [56] References Cmd body wall which terminates in an annular head.
  • the profiled bottom wall of this invention comprises an annular chime formed in a bottom panel of a can which projects inwardly and upwardly from the body wall of the can at a predetermined angle, and an annular bead formed in the bottom panel of the can at the uppermost end of .the chime.
  • This specified construction of the bottom wall substantially increases the pressure-buckling resistance of the cam bottom andpermits the can bottom to be made very thin without danger of buckling under the influence of internal pressure when beverages or pressurized materials are packaged in the can.
  • an object of this invention is to provide a can or can body whose particularly profiled bottom wall has improved pressure-buckling resistance as compared to conventional cans.
  • Another object of this invention is to provide a profiled bottom wall for extruded and wall ironed cans which permits the bottom wall of the can to be made very thin without danger of pressure-buckling when carbonated beverages or pressurized materials are packaged therein.
  • FIG. 1 is a fragmentary side elevational view with a portion removed for clarity of the bottom end portion of an extruded can body prior to being profiled in accordance with this invention
  • FIG. 2 is a fragmentary side elevational view with a portion removed for clarity of the can bottom shown in FIG. 1, and illustrates the bottom wall profiled in accordance with this invention.
  • FIG. 1 there is shown a bottom end portion (unnumbered) of an extruded and wall ironed can body 5 comprising a cylindrical body wall 10 and outwardly domed bottom panel 12 integrally joined to the body wall 10 at a peripheral juncture 14.
  • the can body 5 is adapted to be profiled in accordance with this invention as will be more apparent hereafter, but the bottom panel 12 is initially outwardly domed on a radius R and is differentially thickened, as indicated by the different thicknesses T, and T
  • the thickness T is approximately equal to the body wall thickness T
  • the radius R, and thickness T are chosen to provide adequate material for the profiled bottom wall or panel 12' shown in FIG. 2, which when formed from the material of the bottom panel 12, stretches the latter by approximately eighth inch.
  • the profiled bottom wall 12' (FIG. 2) of this invention comprises an annular chime 16 formed adjacent to the peripheral juncture 14 which projects inwardly and upwardly therefrom at an angle A to the body wall 10.
  • the lowermost end of the annular chime 16 is defined by a relatively sharp annular radius portion 17 having a sharp radius of curvature R at the point where chime I6 joins the body wall 10.
  • the uppermost end of the chime 16 is defined by an annular bead portion 1-8 which has a relatively large radius of curvature R
  • the length of the chime 16, as measured from the outside of the radii of curvature R and R is indicated by the dimension L.
  • the particular value for the dimension L will be dependent on the value of the angle A and the relationship between the diameter D of the body wall 10 and the diameter D of the annular bead 18..More specifically, the dimension L will be approximately equal to (D D )/(2 Cos A).
  • the radius of curvature R and the diameter D of the annular head 18, taken in consideration with the angle A and the length L are the most important variables in the profiled bottom wall of this invention.
  • the annular bead 18 by virtue of its annular shape and its semi-circular cross-section, is highly resistant to pressure-buckling, and it is positioned in such manner as to substantially increase the pressure-buckling resistance of the remaining portions of the bottom wall.
  • vectors For the purpose of analyzing the effect of the annular bead 18 upon the pressure-buckling resistance of the other portions of the bottom wall 12, vectors have been drawn on the right hand side of FIG. 2 indicating the direction of fluid pressure applied to the bottom wall 12' from within the can 5.
  • the forces applied against the inner surface of the annular chime 16 have two effects. First they tend to bow the annular chime l6 outwardly, and second they tend to compress the annular bead 18 in the plane thereof in such manner as to tend to reduce the diameter D of the annular bead 18. However, due to the relative shortness of the length L, and to the inherent rigidity of the annular bead 18, strong resistance to these buckling forces is afforded even by the thinnest of bottom walls. Thus, it will be seen that the annular chime in combination with the annular bead provides a very substantial stiffening of the bottom wall 12' from its outer periphery to the inner periphery of the annular bead 18.
  • a central portion 20 of the bottom wall 12 is domed outwardly slightly along a relatively large radius R Pressure applied to the inner surface of the central portion 20 has two effects. First it tends to increase the outward bulge of the central portion 20, and second it tends to, in effect, roll the annular bead 18 down the annular chime 16. The first mentioned effect does not present any serious problem as long as there is some clearance between the bottom of the central portion 20, and the peripheral juncture 14 of the can, providing that the pressure is not great enough to rupture bottom portions 20. The second effect is counteracted by the inherent rigidity of the annular bead l8 and the support offered to it by the annular chime 16. It has been discovered by experimentation that the abovenoted stiffeningaction is very significant in the sense that it has been found to increase the resistance against buckling under the influence of internal pressure by approximately 45 percent in comparison with conventional profiled bottom walls.
  • the can body is made of aluminum, and the relative dimensions of the bottom wall are as follow:
  • a can body having a body wall and a bottom wall integrally joined to said body wall at a peripheral juncture
  • the improvement comprising an annular chime formed in said bottom wall adjacent to said peripheral juncture and projecting inwardly and upwardly therefrom at a predetermined angle to said body wall, an annular bead formed in said bottom wall at the uppermost end of said chime, an outwardly'projecting dome formed in said wall within the inner periphery of said annular bead, the angle between said annular chime and said body wall is greater than 30 and less than 60, and the radius of curvature of said annular bead in a plane containing the principal axis of the can body and extending radially of said body is less than three times the thickness of said bottom wall and greater than 1.5 times the thickness of said bottom wall.
  • said can body is made of aluminum, the angle between said annular chime and said body wall being approximately 40, and the diameter of said annular bead as measured across the annular center line thereof is approximately equal to 0.7 times the outside diameter of said body wall.
  • a can body having a body wall and a bottom wall integrally joined to said body wall at a peripheral juncture, the improvement comprising an annular chime formed in said bottom wall adjacent to said peripheral juncture and projecting inwardly and upwardly therefrom at a predetermined angle to said body wall,
  • annular bead formed in said bottom wall at the uppermost end of said chime, an outwardly projecting dome formed in said bottom wall within the inner periphery of said annular head, said can body being made of aluminum, the angle between said annular chime and said body wall being approximately 40, the diameter of said annular bead as measured across the annular center line being approximately equal to 0.7 times the outside diameter of said body wall, and the radius of curvature of said annular bead is approximately equal to two times the thickness of said bottom wall.
  • a can body having a body wall and a bottom wall integrally joined to said body wall at a peripheral juncture, the improvement comprising an annular chime formed in said bottom wall adjacent to said peripheral juncture and projecting inwardly and upwardly therefrom at a predetermined angle to said body wall,
  • annular bead formed in said bottom wall at the uppermost end of said chime, an outwardly projecting dome formed in said bottom wall within the inner periphery of said annular bead, the angle between said annular chime and said body wall is greater than 30 and less than 60, said can body being made of aluminum, the diameter of said annular bead as measured across the annular center line thereof is approximately equal 0.7 times the outside diameter of said body wall, and the radius of curvature of said annular bead is approximately equal to two times the thickness of said bottom wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
US32526A 1970-04-28 1970-04-28 Profiled bottom wall for extruded and wall ironed cans Expired - Lifetime US3690507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3252670A 1970-04-28 1970-04-28

Publications (1)

Publication Number Publication Date
US3690507A true US3690507A (en) 1972-09-12

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ID=21865390

Family Applications (1)

Application Number Title Priority Date Filing Date
US32526A Expired - Lifetime US3690507A (en) 1970-04-28 1970-04-28 Profiled bottom wall for extruded and wall ironed cans

Country Status (5)

Country Link
US (1) US3690507A (enrdf_load_stackoverflow)
JP (2) JPS5414297Y2 (enrdf_load_stackoverflow)
CA (1) CA934308A (enrdf_load_stackoverflow)
DE (1) DE2100053C2 (enrdf_load_stackoverflow)
GB (1) GB1281318A (enrdf_load_stackoverflow)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501366U (enrdf_load_stackoverflow) * 1973-04-18 1975-01-08
US3905507A (en) * 1974-04-05 1975-09-16 Nat Can Corp Profiled bottom wall for containers
JPS5168384A (ja) * 1974-12-06 1976-06-12 Mitsubishi Metal Corp Usunikukinzokukan
US3979009A (en) * 1975-03-21 1976-09-07 Kaiser Aluminum & Chemical Corporation Container bottom structure
US3998174A (en) * 1975-08-07 1976-12-21 National Steel Corporation Light-weight, high-strength, drawn and ironed, flat rolled steel container body method of manufacture
US4093102A (en) * 1974-08-26 1978-06-06 National Can Corporation End panel for containers
USD248544S (en) * 1975-10-22 1978-07-18 National Steel Corporation Seam-free can
US4120419A (en) * 1976-02-23 1978-10-17 National Steel Corporation High strength seamless chime can body, sheet metal container for vacuum packs, and manufacture
US4134510A (en) * 1975-06-16 1979-01-16 Owens-Illinois, Inc. Bottle having ribbed bottom
US4134354A (en) * 1976-02-06 1979-01-16 Reynolds Metals Company Method of making a container
US4151927A (en) * 1974-07-12 1979-05-01 Reynolds Metals Company Container construction
US4222494A (en) * 1977-03-04 1980-09-16 Reynolds Metals Company Container
US4341321A (en) * 1978-08-04 1982-07-27 Gombas Laszlo A Can end configuration
US4515284A (en) * 1980-08-21 1985-05-07 Reynolds Metals Company Can body bottom configuration
US4553667A (en) * 1983-12-27 1985-11-19 Hudson John E Bowling ball carrying container
US4953738A (en) * 1988-02-19 1990-09-04 Stirbis James S One piece can body with domed bottom
US5217737A (en) * 1991-05-20 1993-06-08 Abbott Laboratories Plastic containers capable of surviving sterilization
US5234126A (en) * 1991-01-04 1993-08-10 Abbott Laboratories Plastic container
US5279442A (en) * 1991-12-18 1994-01-18 Ball Corporation Drawn and ironed container and apparatus and method for forming same
USD428814S (en) * 1998-09-14 2000-08-01 Schmalbach-Lubeca Ag Container
US6131761A (en) * 1998-06-03 2000-10-17 Crown Cork & Seal Technologies Corporation Can bottom having improved strength and apparatus for making same
US6543268B2 (en) 2000-01-03 2003-04-08 J. L. Clark, Inc. Deep drawn candle can with formed safety bottom
US7247017B2 (en) 1999-12-21 2007-07-24 S.C. Johnson & Son, Inc. Melting plate candles
US7591646B2 (en) 1999-12-21 2009-09-22 S. C. Johnson & Son, Inc. Heat exchange method for melting plate candle
US20130292394A1 (en) * 2012-05-01 2013-11-07 Berry Plastics Corporation Retortable package
DE102014110454A1 (de) * 2014-07-24 2016-01-28 Schuler Pressen Gmbh Dosenkörper mit konvex gewölbtem Dosenbodenabschnitt
US20160229591A1 (en) * 2015-02-11 2016-08-11 Antonio Bajuyo Handheld Fluid Container
US9884716B2 (en) 2012-10-26 2018-02-06 Berry Plastics Corporation Package
US10239648B2 (en) 2014-10-28 2019-03-26 Ball Metalpack, Llc Apparatus and method for forming a cup with a reformed bottom
US10315242B2 (en) 2014-10-15 2019-06-11 Ball Metalpack, Llc Apparatus and method for simultaneously forming a contoured shoulder and neck portion in a closed end of a metallic container

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS554837Y2 (enrdf_load_stackoverflow) * 1974-02-20 1980-02-05
JPS587388Y2 (ja) * 1974-12-23 1983-02-09 日立金属株式会社 ジキブラシゲンゾウヨウマグネツトロ−ル
JPS52109845U (enrdf_load_stackoverflow) * 1976-02-17 1977-08-20
JPS5325186A (en) * 1976-08-20 1978-03-08 Daiwa Can Co Ltd Metallic can for drink containing carbon dioxide or the like
JPS5468249A (en) * 1977-11-10 1979-06-01 Hitachi Metals Ltd Developing device for xerographic copying machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US287624A (en) * 1883-10-30 chaumont
US1963795A (en) * 1931-01-16 1934-06-19 Food Proc Company Domed container end
US2142743A (en) * 1936-01-31 1939-01-03 Crown Cork & Seal Co Metallic container
US3237910A (en) * 1962-07-02 1966-03-01 Lavedas Nick Cake pan
US3272383A (en) * 1965-07-08 1966-09-13 Harvey Aluminum Inc One-piece extruded container for canning
US3434626A (en) * 1966-08-01 1969-03-25 Phillips Petroleum Co Plastic container bottom of increased strength

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157896A (en) * 1936-01-06 1939-05-09 Roy J Held Metal bottle
US3029507A (en) * 1957-11-20 1962-04-17 Coors Porcelain Co One piece thin walled metal container and method of manufacturing same
AT246227B (de) * 1963-06-29 1966-04-12 Tesla Np Unsymmetrische Gegentakt-Verstärkerstufe für beide stereophonische Signale
US3693828A (en) * 1970-07-22 1972-09-26 Crown Cork & Seal Co Seamless steel containers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US287624A (en) * 1883-10-30 chaumont
US1963795A (en) * 1931-01-16 1934-06-19 Food Proc Company Domed container end
US2142743A (en) * 1936-01-31 1939-01-03 Crown Cork & Seal Co Metallic container
US3237910A (en) * 1962-07-02 1966-03-01 Lavedas Nick Cake pan
US3272383A (en) * 1965-07-08 1966-09-13 Harvey Aluminum Inc One-piece extruded container for canning
US3434626A (en) * 1966-08-01 1969-03-25 Phillips Petroleum Co Plastic container bottom of increased strength

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS501366U (enrdf_load_stackoverflow) * 1973-04-18 1975-01-08
US3905507A (en) * 1974-04-05 1975-09-16 Nat Can Corp Profiled bottom wall for containers
US4151927A (en) * 1974-07-12 1979-05-01 Reynolds Metals Company Container construction
US4093102A (en) * 1974-08-26 1978-06-06 National Can Corporation End panel for containers
JPS5168384A (ja) * 1974-12-06 1976-06-12 Mitsubishi Metal Corp Usunikukinzokukan
US3979009A (en) * 1975-03-21 1976-09-07 Kaiser Aluminum & Chemical Corporation Container bottom structure
US4134510A (en) * 1975-06-16 1979-01-16 Owens-Illinois, Inc. Bottle having ribbed bottom
US3998174A (en) * 1975-08-07 1976-12-21 National Steel Corporation Light-weight, high-strength, drawn and ironed, flat rolled steel container body method of manufacture
USD248544S (en) * 1975-10-22 1978-07-18 National Steel Corporation Seam-free can
US4134354A (en) * 1976-02-06 1979-01-16 Reynolds Metals Company Method of making a container
US4120419A (en) * 1976-02-23 1978-10-17 National Steel Corporation High strength seamless chime can body, sheet metal container for vacuum packs, and manufacture
US4222494A (en) * 1977-03-04 1980-09-16 Reynolds Metals Company Container
US4341321A (en) * 1978-08-04 1982-07-27 Gombas Laszlo A Can end configuration
US4515284A (en) * 1980-08-21 1985-05-07 Reynolds Metals Company Can body bottom configuration
US4553667A (en) * 1983-12-27 1985-11-19 Hudson John E Bowling ball carrying container
US4953738A (en) * 1988-02-19 1990-09-04 Stirbis James S One piece can body with domed bottom
US5234126A (en) * 1991-01-04 1993-08-10 Abbott Laboratories Plastic container
US5217737A (en) * 1991-05-20 1993-06-08 Abbott Laboratories Plastic containers capable of surviving sterilization
US5279442A (en) * 1991-12-18 1994-01-18 Ball Corporation Drawn and ironed container and apparatus and method for forming same
US6131761A (en) * 1998-06-03 2000-10-17 Crown Cork & Seal Technologies Corporation Can bottom having improved strength and apparatus for making same
US6220073B1 (en) 1998-06-03 2001-04-24 Crown Cork & Seal Technologies Corporation Can bottom having improved strength and apparatus for making same
USD428814S (en) * 1998-09-14 2000-08-01 Schmalbach-Lubeca Ag Container
US7247017B2 (en) 1999-12-21 2007-07-24 S.C. Johnson & Son, Inc. Melting plate candles
US7591646B2 (en) 1999-12-21 2009-09-22 S. C. Johnson & Son, Inc. Heat exchange method for melting plate candle
US6543268B2 (en) 2000-01-03 2003-04-08 J. L. Clark, Inc. Deep drawn candle can with formed safety bottom
US6648631B2 (en) 2000-01-03 2003-11-18 J. L. Clark, Inc. Deep drawn candle can with formed safety bottom
US20130292394A1 (en) * 2012-05-01 2013-11-07 Berry Plastics Corporation Retortable package
US9463894B2 (en) * 2012-05-01 2016-10-11 Berry Plastics Corporation Retortable package
US9884716B2 (en) 2012-10-26 2018-02-06 Berry Plastics Corporation Package
DE102014110454A1 (de) * 2014-07-24 2016-01-28 Schuler Pressen Gmbh Dosenkörper mit konvex gewölbtem Dosenbodenabschnitt
US10315242B2 (en) 2014-10-15 2019-06-11 Ball Metalpack, Llc Apparatus and method for simultaneously forming a contoured shoulder and neck portion in a closed end of a metallic container
US10239648B2 (en) 2014-10-28 2019-03-26 Ball Metalpack, Llc Apparatus and method for forming a cup with a reformed bottom
US20160229591A1 (en) * 2015-02-11 2016-08-11 Antonio Bajuyo Handheld Fluid Container
US9950838B2 (en) * 2015-02-11 2018-04-24 Antonio Bajuyo Handheld fluid container

Also Published As

Publication number Publication date
GB1281318A (en) 1972-07-12
JPS5319287A (en) 1978-02-22
CA934308A (en) 1973-09-25
JPS5414297Y2 (enrdf_load_stackoverflow) 1979-06-13
JPS46149U (enrdf_load_stackoverflow) 1971-12-07
DE2100053C2 (de) 1985-05-23
DE2100053A1 (de) 1971-11-11

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