US3698596A - Necked-in container - Google Patents

Necked-in container Download PDF

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Publication number
US3698596A
US3698596A US4295A US429570A US3698596A US 3698596 A US3698596 A US 3698596A US 4295 A US4295 A US 4295A US 429570 A US429570 A US 429570A US 3698596 A US3698596 A US 3698596A
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US
United States
Prior art keywords
section
terminal
cylindrical
necked
lap
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 - Lifetime
Application number
US4295A
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English (en)
Inventor
Vinson S Potts
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Cork and Seal Co Inc
Original Assignee
Crown Cork and Seal Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crown Cork and Seal Co Inc filed Critical Crown Cork and Seal Co Inc
Priority to US4295A priority Critical patent/US3698596A/en
Priority to GB5599770A priority patent/GB1334376A/en
Priority to ZA708323A priority patent/ZA708323B/xx
Priority to NL7100691A priority patent/NL7100691A/xx
Priority to FR7101693A priority patent/FR2077231B1/fr
Priority to BE761765A priority patent/BE761765A/nl
Priority to ES1971194620U priority patent/ES194620Y/es
Priority to DE19712102575 priority patent/DE2102575A1/de
Application granted granted Critical
Publication of US3698596A publication Critical patent/US3698596A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • I ABSTRACT Cans having a tubular body necked'in at one or both ends.
  • the tubular body is side seamed and the en are seamed to the tubular body.
  • PATENTEDHN 17 I972 3. 698 596 sum 3 or 3 Fig v Fig,
  • This invention relates in particular to necked-in sheet metal cansin common use in various food industries including the beverage industry. It is necessary that such cans be inexpensive particularly where the cans are intended to be disposable. It is also necessary that the can provide an hermetic seal so that the contents will remain uncontaminated, and, if under pressure, will remain under pressure.
  • a neckedin can at a low cost.
  • a can and method for forming a can are, provided wherein the can comprises a side seamed tubular body portion having at least one necked-in terminal section seamed to a can end.
  • the maximum outside diameter of the can-end may be less than the maximum'outside diameter of the tubular can body. Accordingly, the overall diameter of the seamed end will be substantially less than the maximum outside diameter of the tubular body portion.
  • the side seam which extends along the entire length of the tubular can body is constructed to withstand an internal pressure of at least 100 psi. This may be achieved by providing an interlocking portion substantially coextensive with a central portion of the tubular can body and a lap portion which extends along a necked-in terminal section of the can body and into the central cylindrical section. The lap portion of the seam after welding and soldering, will tolerate the inward crimping at the necked-in terminal section and still provide the desired hermetic seal.
  • FIG. 1 is a vertical section of a can necked-in at both ends;
  • FIG. 2 is a partial enlarged vertical section of the necked-in can as indicated in FIG. 1;
  • FIG. 3 is a partial elevational view of a can body before the can is necked-in;
  • FIG. 4 is a sectional view of the side seam taken along section lines 4-4 of FIG. 3;
  • FIG. 5 is a sectional view of the interlocking portion of the side seam taken along section lines 5-5 of FIG. 1;
  • Y 3 is a sectional view of the interlocking portion of the side seam taken along section lines 5-5 of FIG. 1;
  • FIG. 6 is a partial elevational view of a can body having a modified side seam
  • FIG. 7 is a partial elevational view of a can body having a differently modified side seam
  • FIG. 8 is a vertical section of a pair of cans necked-in I at onlyvone end, the uppercan shown in full and the lower can shown in section; and I FIGS. 9a 9f are a schematic representation of a process by which the cans are fabricated.
  • a beverage can 10 illustrated in FIG. 1 is necked-in at both ends by an abrupt and substantial inward crimping ,of a tubular'body 12 near ends 14.
  • the tubular body portion is formed from a sheet metal blank and includes a side seam 16 joining opposite edges of the blank.
  • the ends 14 are initially formed separate from-the tubular body 12 and subsequently affixed thereto at double seams 18.
  • the side seam 16 and the double seams 18 are utilized in accordance with conventional fabrication techniques in the can art, the side seam l6 and the ends 14 which are affixed to the tubular, body 12 by the double seams 18 are not conventional.
  • the total amount of metal involved in fabricating the ends 14, is substantially less than with conventional ends which have an overall or maximum along a portion of the side seam 16. It will be appreciated that this inward crimping subjects that portion of the side seam 16 to substantial and acute deformation.
  • the tubular body 12 is substantially cylindrical at a central section 20 and sub- I stantially cylindrical at a terminal section 22 but substantially conical or tapered at a terminal annular section 24.
  • the tubular body 12 as well as the side seam 16 shown in FIG. 1 is inwardly crimped or deformed through angles approximating 45 the apices of the angles lying between the tapered section 24 and the central and terminal and cylindrical sections 22.
  • the side seam 16 includes an extended lap portion 26 near the terminal edges of the tubular body 12.
  • the lap portion 26 which is not yet inwardly crimped includes a spot or projection weld 28, substantially centered on the lap portion-26.
  • the lap portion 26 actually extends into the central cylindrical section 20 as well as the terminal cylindrical section 22 so that the side seam 16 is only two-ply at the points of maximum deformation, that is, the points where the tubular body 12 is crimped or deformed through the 45 angles.
  • An interlocking portion 30 of the side seam 16 which is four-ply extends along a substantial portion of the central cylindrical section 20.
  • the interlocking portion 30 as shown in FIGS. 1 and 5 except for its somewhat abbreviated nature is substantially conventional and includes a series of inwardly projecting bumps 32 which lock the seamed edges of the tubular body 12 to one another to prevent axial slippage along the side seam 16.
  • the entire side seam 16 including the interlocking portion 30 and the lap portion 26 is soldered to complete the hermetic seal.
  • FIGS. 6 and 7 disclose modifications of the lap portion 26 which relates to the location of the welds.
  • FIG. 6 which shows the lap portion 26 before the tubular body 12 is inwardly crimped, there are two spot or projection welds 34.
  • the locations of the welds 34 are important in that the tubular can body 12 when inwardly crimped will deform at the welds 34. Accordingly, the welds 34 assure a firm connection of the side seamed edges at points of maximum deformation.
  • an elongated spot or projection weld 36 is centered on the lap portion 26 as in the case of the weld 28. However, the weld 36 is elongated so as to provide a firm fastening of the lap portion along the extent of the tapered section 24 once the tubular body 12 is inwardly crimped.
  • FIG. 8 a pair of cans 40 are shown which are necked-in at only one end.
  • the cans 40 are identical to the can 10 except that each of the cans 40 is not necked-in at a conventional double seamed end 42. Accordingly, identical numerals have been utilized to identify identical elements.
  • the cans 40 are stacked end to end with the end 14 resting upon theconventional end 42. It may be seen that the abrupt and substantial reduction in the diameter of the tubular body portion 12 of the upper can 40 at the end 14 permits the end 14 to mate within the conventional end 42.
  • the side seam 16 including the lap portion 26 and an abbreviated and conventional lap portion 44 provides an hermetic seal for pressures in excess of 100 psi.
  • FIG. 9c The next operation in the formation of the side seam l6 and the third step in the fabrication of the necked-in can is depicted by FIG. 9c. As shown there, a pair of welding electrodes 48 are forming the welds 28, 34, or 36 of the lap portion(s) 26. In FIG. 9d, the last operation of the side seam formation and the fourth step in the fabrication of the can is depicted. This operation and step involves the soldering of the side seam by a solder roll 50 which is rotating in a direction to force the solder between the layers of the side seam 16.
  • the can moves to the fifth step of the fabrication method which provides for the inward crimping of the tubular body as depicted by FIG. 9e.
  • a mandrel 52 is inserted into the interior of the tube while a crimping tool 54 passes around the exterior of the tubular body 12.
  • thecrimping tool 54 has traveled a number of revolutions around the w bular body 12, the necking-in operation is completed.
  • the mandrel 52 is collapsible to permit its removal from the necked-in tubular body 12.
  • the layers of metal at the lap portion 26 and the interlocking portion 30 of the side seam 16 have been shown as mutually spaced for purposes of illustration only. They are actually in mutual contact to provide an hermetic seal.
  • the can ends 14 and 42 may be affixed. As depicted by FIG. 9f, the end 14 is double seamed to the tubular can body 12.
  • the layers of metal at the double seam 18 have been shown as mutually spaced for purposes of illustration only.
  • a metal can comprising:
  • a substantially tubular can body including a substantially cylindrical central section and at least one necked-in terminal section, said necked-in terminal section having a tapering annular portion providing an abrupt and substantial reduction in diameter of said tubular can body, said tubular can body further including a side seam extending along said tubular body including said necked-in section, said side seam including a soldered interlocking portion extending along said cylindrical central section and at least one lap portion extending throughout said at least one necked-in terminal section and into said cylindrical central section,
  • said interlocking portion of said seam providing an hermetic seal under pressures in excess of 100 psi;
  • a metal can for containing highly pressurized contents comprising: Y
  • a substantially tubular can body having spaced terthan the inside diameter of said central cylindrical section, and an abruptly inwardly tapering'annular section intermediate said central cylindrical secof said lap portions is welded at a point on said annular tapering section.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)
US4295A 1970-01-20 1970-01-20 Necked-in container Expired - Lifetime US3698596A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US4295A US3698596A (en) 1970-01-20 1970-01-20 Necked-in container
GB5599770A GB1334376A (en) 1970-01-20 1970-11-25 Necked-in cans
ZA708323A ZA708323B (en) 1970-01-20 1970-12-09 Necked-in container
FR7101693A FR2077231B1 (xx) 1970-01-20 1971-01-19
NL7100691A NL7100691A (xx) 1970-01-20 1971-01-19
BE761765A BE761765A (nl) 1970-01-20 1971-01-19 Vaten uit blik met verenging
ES1971194620U ES194620Y (es) 1970-01-20 1971-01-19 Nuevo bote.
DE19712102575 DE2102575A1 (de) 1970-01-20 1971-01-20 Behalter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4295A US3698596A (en) 1970-01-20 1970-01-20 Necked-in container

Publications (1)

Publication Number Publication Date
US3698596A true US3698596A (en) 1972-10-17

Family

ID=21710075

Family Applications (1)

Application Number Title Priority Date Filing Date
US4295A Expired - Lifetime US3698596A (en) 1970-01-20 1970-01-20 Necked-in container

Country Status (8)

Country Link
US (1) US3698596A (xx)
BE (1) BE761765A (xx)
DE (1) DE2102575A1 (xx)
ES (1) ES194620Y (xx)
FR (1) FR2077231B1 (xx)
GB (1) GB1334376A (xx)
NL (1) NL7100691A (xx)
ZA (1) ZA708323B (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921848A (en) * 1972-12-04 1975-11-25 Alusuisse Aerosol dispensing and similar metal cans adapted to contain a pressurized fluid
DE2612371A1 (de) * 1975-04-02 1976-10-21 Thomassen & Drijver Behaelter aus blech mit einem randflansch
US4008821A (en) * 1970-10-02 1977-02-22 Continental Can Company, Inc. Necked-in can body and apparatus for making same
US4165011A (en) * 1977-09-09 1979-08-21 The Continental Group, Inc. Bonded can top
US4823973A (en) * 1986-04-17 1989-04-25 International Paint Plc Bottom seam for pail
US5335813A (en) * 1992-12-02 1994-08-09 Hao Qi Double-vessel can
WO1995026290A1 (en) * 1994-03-25 1995-10-05 Kubitz Terry E Reinforced container and method for producing same
US6070750A (en) * 1986-12-01 2000-06-06 Kubitz; Terry E. Reinforced container and method for producing same
US6332659B1 (en) * 1999-11-19 2001-12-25 Avaya Technology Corp. Modular cabinet for housing electronics
US20050285487A1 (en) * 2004-06-24 2005-12-29 Lg Electronics Inc. Tub construction for dishwasher
US20130105499A1 (en) * 2011-10-28 2013-05-02 Sonoco Development, Inc. Three-Piece Can and Method of Making Same
US20130277377A1 (en) * 1995-05-24 2013-10-24 Crown Packaging Technology, Inc. Can End and Method for Fixing the Same to a Can Body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1603973A (en) * 1978-02-16 1981-12-02 American Can Uk Ltd Drums

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1324373A (fr) * 1962-03-07 1963-04-19 Futs Metalliques Gallay S A Perfectionnements aux fûts métalliques
FR1568019A (xx) * 1968-01-09 1969-05-23

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008821A (en) * 1970-10-02 1977-02-22 Continental Can Company, Inc. Necked-in can body and apparatus for making same
US3921848A (en) * 1972-12-04 1975-11-25 Alusuisse Aerosol dispensing and similar metal cans adapted to contain a pressurized fluid
DE2612371A1 (de) * 1975-04-02 1976-10-21 Thomassen & Drijver Behaelter aus blech mit einem randflansch
US4254886A (en) * 1975-04-02 1981-03-10 Thomassen En Drijver-Verblifa N.V. Can body having a laterally projecting flange
US4165011A (en) * 1977-09-09 1979-08-21 The Continental Group, Inc. Bonded can top
US4823973A (en) * 1986-04-17 1989-04-25 International Paint Plc Bottom seam for pail
US6070750A (en) * 1986-12-01 2000-06-06 Kubitz; Terry E. Reinforced container and method for producing same
US5335813A (en) * 1992-12-02 1994-08-09 Hao Qi Double-vessel can
WO1995026290A1 (en) * 1994-03-25 1995-10-05 Kubitz Terry E Reinforced container and method for producing same
US20130277377A1 (en) * 1995-05-24 2013-10-24 Crown Packaging Technology, Inc. Can End and Method for Fixing the Same to a Can Body
US6332659B1 (en) * 1999-11-19 2001-12-25 Avaya Technology Corp. Modular cabinet for housing electronics
US20050285487A1 (en) * 2004-06-24 2005-12-29 Lg Electronics Inc. Tub construction for dishwasher
US20130105499A1 (en) * 2011-10-28 2013-05-02 Sonoco Development, Inc. Three-Piece Can and Method of Making Same

Also Published As

Publication number Publication date
FR2077231A1 (xx) 1971-10-22
ES194620Y (es) 1976-10-16
DE2102575A1 (de) 1971-08-12
FR2077231B1 (xx) 1975-07-04
ZA708323B (en) 1971-09-29
NL7100691A (xx) 1971-07-22
ES194620U (es) 1975-01-01
BE761765A (nl) 1971-07-01
GB1334376A (en) 1973-10-17

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