US3322297A - Can with integral pull tab - Google Patents

Can with integral pull tab Download PDF

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Publication number
US3322297A
US3322297A US439559A US43955965A US3322297A US 3322297 A US3322297 A US 3322297A US 439559 A US439559 A US 439559A US 43955965 A US43955965 A US 43955965A US 3322297 A US3322297 A US 3322297A
Authority
US
United States
Prior art keywords
tab
pull tab
score line
impact
tear strip
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
US439559A
Other languages
English (en)
Inventor
Ralph J Stolle
Elton G Kaminski
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.)
Stolle Corp
Original Assignee
Stolle Corp
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 Stolle Corp filed Critical Stolle Corp
Priority to US439559A priority Critical patent/US3322297A/en
Priority to CH321066A priority patent/CH457337A/de
Priority to DE1532466A priority patent/DE1532466C3/de
Priority to BE677774D priority patent/BE677774A/xx
Priority to GB11103/66A priority patent/GB1094177A/en
Priority to FR53383A priority patent/FR1471117A/fr
Priority to SE3360/66A priority patent/SE301785B/xx
Priority to NL666603339A priority patent/NL148250B/xx
Priority to BR177861/66A priority patent/BR6677861D0/pt
Priority to US629452A priority patent/US3430593A/en
Application granted granted Critical
Publication of US3322297A publication Critical patent/US3322297A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/18—Making uncoated products by impact extrusion
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/34—Arrangement or construction of pull or lift tabs
    • B65D17/347—Arrangement or construction of pull or lift tabs characterised by the connection between the tab and a detachable member or portion of the container
    • B65D17/353—Arrangement or construction of pull or lift tabs characterised by the connection between the tab and a detachable member or portion of the container the connecting means being integral with the tab or with the detachable member or portion
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab

Definitions

  • pull tab means have been provided in association with a generally keyhole shaped score line so that the metal of the can end within the score line could be manually torn out of the can end to provide a pouring or drinking spout.
  • FIG. 1 is a fragmentary cross sectional view through a can as it is formed.
  • FIG. 2 is a cross sectional to the view of FIG. 1.
  • FIG. 3 is a perspective view of the same.
  • FIG. 4 is a view similar to FIG. 3 with the tab bent down and with the can in condition for shipment.
  • FIG. 5 is a view similar to FIGS. 3 and 4 showing the pull tab actuated to tear out the area of the can end within the score line.
  • the die is arranged not only to provide the form of a can body and can end, but also a more or less centrally located extending tab.
  • Such tab is integral with the material of the can end.
  • the term impact-extrusionforming as used herein and in the claims is intended to be inclusive of the so-called impact and iron forming process.
  • the impact and iron forming process is a modification of the impact-extrusion-forming process whereby the article is only partially formed by impact-extrusion-forming.
  • the impact-extrusionforming process is used to produce a short cup of proper diameter with a heavy wall thickness. Thereafter, the cup is pushed through ironing dies to reduce the wall thickness and increase the length of the cup to a proper length for the trimming and flanging operations.
  • the tab may simply be formed during the impact-extrusion-forming of the cup. The subsequent ironing operation may then be carried out without in any way alfecting the pull tab.
  • the die is arranged to form a can having a body Wall 10 and an end wall 11 which may be connected by a U-shaped section 12, whereby the can end is depressed within the length of the can body.
  • the tab which is formed during the impactextrusion-forming process is shown at 13.
  • the impactextrusion-forming process is one which lends itself very well to high speed production which is, of course, a very necessary element in the can business.
  • the tab 13 extends upwardly substantially centrally of the can end 11. At this point there is formed in the can end 11 a score line which closely fol lows around the root of the tab as indicated at 14 and 15 and which then flares out as at 16 toward the edge of the can and the score line then merges in an arcuate section 17 adjacent the edge of the can end.
  • the tab is bent over as shown in FIG. 4 and the can is then ready for inside and outside cleaning and subsequent filling, closing and labeling.
  • the tab 13 When it is desired to open a can according to the present invention, the tab 13 is lifted slightly and, for a righthanded person, is twisted in a clockwise direction, breaking out the end 18 of the area within the score line. Continued pull on the tab 13 removes the entire area of the can end within the score line and the contents of the can may then be poured or drunk.
  • the tab may have any suitable or desired cross section and may even have a circular cross section which can then be simply flattened after scoring when the tab is bent over.
  • a can for beverages and the like having an end, a score line in said end defining a tear strip adapted to be torn out to open said can, said tear strip having a relative ly wide portion conforming substantially and lying closely adjacent to each of said can ends, then tapering together in the direction of the center of said can end, and terminating in a relatively narrow parallel portion extending across the center of said can end, and a pull tab integral with said can end, the base of the said pull tab being disposed substantially centrally of said can end within the said parallel portion of said tear strip, and the body of said pull tab lying flat closely adjacent said can end and extending in a generally radial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US439559A 1965-03-15 1965-03-15 Can with integral pull tab Expired - Lifetime US3322297A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US439559A US3322297A (en) 1965-03-15 1965-03-15 Can with integral pull tab
CH321066A CH457337A (de) 1965-03-15 1966-03-07 Verfahren zum Herstellen einer Büchse mit einem Aufreisslappen, und danach hergestellte Büchse
DE1532466A DE1532466C3 (de) 1965-03-15 1966-03-09 Metallblechdose
GB11103/66A GB1094177A (en) 1965-03-15 1966-03-14 Can with integral pull tab and method of making same
BE677774D BE677774A (zh) 1965-03-15 1966-03-14
FR53383A FR1471117A (fr) 1965-03-15 1966-03-14 Boîte pourvue d'une patte de tirage pour boissons et autres produits similaires
SE3360/66A SE301785B (zh) 1965-03-15 1966-03-14
NL666603339A NL148250B (nl) 1965-03-15 1966-03-15 Werkwijze voor het vervaardigen van een houder met een een geheel daarmede vormende treklip, en een produkt, verkregen onder toepassing van de werkwijze.
BR177861/66A BR6677861D0 (pt) 1965-03-15 1966-03-15 Lata com alca de arrancamento integral e processo para fabrica-la
US629452A US3430593A (en) 1965-03-15 1967-04-10 Method of making a can with integral pull tab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439559A US3322297A (en) 1965-03-15 1965-03-15 Can with integral pull tab

Publications (1)

Publication Number Publication Date
US3322297A true US3322297A (en) 1967-05-30

Family

ID=23745193

Family Applications (1)

Application Number Title Priority Date Filing Date
US439559A Expired - Lifetime US3322297A (en) 1965-03-15 1965-03-15 Can with integral pull tab

Country Status (8)

Country Link
US (1) US3322297A (zh)
BE (1) BE677774A (zh)
BR (1) BR6677861D0 (zh)
CH (1) CH457337A (zh)
DE (1) DE1532466C3 (zh)
GB (1) GB1094177A (zh)
NL (1) NL148250B (zh)
SE (1) SE301785B (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394837A (en) * 1966-09-06 1968-07-30 Douglas R. Hansen Container opening means
US3460724A (en) * 1967-11-14 1969-08-12 John F Chmela Closure cap
US4887765A (en) * 1986-03-11 1989-12-19 Tetra Pak Finance & Trading S.A. Fluid pack and process for the production thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8902080L (sv) * 1989-06-09 1990-12-10 Akerlund & Rausing Ab Behaallarefoerslutare
US5125527A (en) * 1990-02-28 1992-06-30 Legrand Box with knock-outs for build-in equipment, in particular electrical equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630238A (en) * 1949-05-09 1953-03-03 Pm Ind Inc Tear out closure
US3163317A (en) * 1962-09-24 1964-12-29 R C Can Co Break-away type closure for a container
US3215306A (en) * 1964-02-17 1965-11-02 Continental Can Co Pull tab

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2630238A (en) * 1949-05-09 1953-03-03 Pm Ind Inc Tear out closure
US3163317A (en) * 1962-09-24 1964-12-29 R C Can Co Break-away type closure for a container
US3215306A (en) * 1964-02-17 1965-11-02 Continental Can Co Pull tab

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394837A (en) * 1966-09-06 1968-07-30 Douglas R. Hansen Container opening means
US3460724A (en) * 1967-11-14 1969-08-12 John F Chmela Closure cap
US4887765A (en) * 1986-03-11 1989-12-19 Tetra Pak Finance & Trading S.A. Fluid pack and process for the production thereof

Also Published As

Publication number Publication date
BR6677861D0 (pt) 1973-12-18
GB1094177A (en) 1967-12-06
DE1532466C3 (de) 1973-12-13
DE1532466B2 (de) 1973-05-17
NL6603339A (zh) 1966-09-16
CH457337A (de) 1968-06-15
SE301785B (zh) 1968-06-24
NL148250B (nl) 1976-01-15
BE677774A (zh) 1966-08-01
DE1532466A1 (de) 1971-08-12

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