US3684126A - Easy-opening can end - Google Patents

Easy-opening can end Download PDF

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Publication number
US3684126A
US3684126A US108854A US3684126DA US3684126A US 3684126 A US3684126 A US 3684126A US 108854 A US108854 A US 108854A US 3684126D A US3684126D A US 3684126DA US 3684126 A US3684126 A US 3684126A
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US
United States
Prior art keywords
tab
cover
rigid
pull
region
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
US108854A
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English (en)
Inventor
Werner Reichert
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Individual
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Individual
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Publication date
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Publication of US3684126A publication Critical patent/US3684126A/en
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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
    • 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
    • B65D17/4011—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 completely by means of a tearing tab

Definitions

  • a tab Connected to the area to be torn out is a tab which has a rigid outer region and a rigid inner region near one end of theouter region and flexibly connected thereto with the inner region fixedly connected to the area to be torn out of the lid.
  • the present invention relates to a built-in can opener and, more specifically, concerns a pull tab for a container panel in which a portion of the panel weakened by a score line can be removed.
  • FIG. 6 shows the further separation of the removable portion of the container panel.
  • FIG. 7 represents a modified design of the pull tab according to the present invention.
  • the container 1 is connected to the container panel 2 by a conventional double seam 3.
  • the container panel 2 is provided with a score line 4 closed in itself which defines the separable region 5 of the container panel 2.
  • a pull tab 7 is fixedly connected to the separable part 5 by means of a rivet 6 which is formed out of the panel.
  • the pull tab 7 comprises a rigid part 8, the front end of which, serves as breaking edge 9 while its rear end has the form -of a ring 10 which surrounds a finger hole 10a.
  • the pull tab furthermore comprises a likewise riveted connectingsection 11 able to fully remove the separable part of the container panel.
  • FIG. 1 illustrates a top view of a container panel designed in conformity with the present invention.
  • the two rigid parts 11 and 12 of the pull tab 7 are pivotally interconnected by a front connecting strip 12 and a rear connecting strip l3.
  • the front connecting strip 12 is, by means of the upper joint 14, connected to the rigid section 8 by the upper joint 14, and by the lowerjoint 15 is connected to the rigid section 1 1 whereas the rear connecting strips 13 are, by means of joints 16, connected to part 8 and by means of joint 17 connected to part 1 l.
  • the joints 14, 15, 16 and 17 are determined by the merging area of theconnecting strips 13 with the rigid strips 8. and 11. Since during the opening operation, the
  • Figs. 2 6 clearly illustrate the function and operation of the pull tab 7 according to the invention. More specifically, Fig. 2 shows the pull tab 7 prior to its actuation for opening the container panel, in other words, according to Fig. 2 the pull tab'occup'ies its normal position when the container panel 2 is closed. Fig. 3 shows a first phase in the opening procedure of the containerpanel according to'which the pull tab 7 is lifted to such an extent that the breaking edge 9 just rests on the score line 4.
  • Figs. 2 and 3 it will be evident that by lifting the pull tab 7, the breaking edge 9 which in the condition of Fig. 4 is set back with regard to the score line 4 has simultaneously moved forward and downwardly in Fig. 3.
  • Fig. 4 shows the pull-tab 7 in a position in which the breaking edge 9 has justbroken through the score line
  • Fig. 5 illustrates how in response to a further lifting of the pull tab 7 a certain section of the separable portion 5 of the container panel 2 is pressed downwardly.
  • Fig. 6 illustrates the further separation of the separable portion 5.
  • FIG. 7 shows a modified pull tab 7a with a further joint 18 in the connecting strip 13.
  • FIG. 2 represents a section taken along the line Il-II of Fig. 1. 4
  • FIG. 3 shows the arrangement of Fig. 2-with a lifted pull tab shortly prior to the breaking of the score line.
  • FIG. 4 shows a further opening stage ofthe construcpull tab upwardly, the distance between the two joints l6 and 17. increases. This will further facilitate the opening or separating operation because the pull tab 7 permits a higher lifting operation before the breaking edge 9 breaks open the score line 4.
  • FIG. 5 shows a still further advanced opening stage after the score line has been further broken and the pull tab has been moved further upwardly with regard to Figs. 3 and 4.
  • a score line following a closed pathand defining a weakened line surrounding a region of the cover to be broken loose and torn out of the cover to open the container and a pull tab connected to said region
  • said pull tab comprising a first rigid section parallel to and adjacent said cover and having one end disposed adjacent one edge part of said region and a second end remote from said edge part, said tab comprising a second rigid section between the said ends and near said one end and connected to said region of the cover, and means flexibly interconnecting said section of said tab so that when said second end of said'tab is lifted away from said cover the said one end of said tab will break said region of the cover loose at said one edge part whereupon said tab can be pulled to tear said region completely out of said cover.
  • a pull open container cover according to claim 1 in which said means flexibly interconnecting said rigid section of said tab comprise connecting strips extending in the direction from one end of said tab to the other and each strip being bendable adjacent each said section.
  • a pull open container cover according to claim 2 in which said strips include a shorter strip extending from said one end of said first rigid section to one side of said second rigid section and a larger strip extending from the other side of said second rigid section to the said second end of said first rigid section.
  • a pull open container cover according to claim 3 in which said second section of said tab is made rigid by upwardly turned edge portions thereof.
  • a pull tab for use with a tear open container lid comprising an elongated member having outer rigid portion and an inner rigid portion near one end of the outer rigid portion and flexible elements extending in the direction of the length of said member and interconnecting said portions, said inner portion being adapted to be fixed to the part of a container lid to be torn therefrom to open the container 7.
  • a pull tab according to claim 7 in which said member has a fingerhole therein at the end opposite said one end thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
US108854A 1970-04-07 1971-01-22 Easy-opening can end Expired - Lifetime US3684126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2016513A DE2016513C3 (de) 1970-04-07 1970-04-07 Behälterdeckel

Publications (1)

Publication Number Publication Date
US3684126A true US3684126A (en) 1972-08-15

Family

ID=5767327

Family Applications (1)

Application Number Title Priority Date Filing Date
US108854A Expired - Lifetime US3684126A (en) 1970-04-07 1971-01-22 Easy-opening can end

Country Status (6)

Country Link
US (1) US3684126A (enrdf_load_stackoverflow)
BE (1) BE757233A (enrdf_load_stackoverflow)
CA (1) CA930320A (enrdf_load_stackoverflow)
DE (1) DE2016513C3 (enrdf_load_stackoverflow)
GB (1) GB1289391A (enrdf_load_stackoverflow)
SE (1) SE364235B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915334A (en) * 1975-02-10 1975-10-28 Continental Can Co Rivet panel (bellow) for easy-o end unit rivet structure
US4002262A (en) * 1976-05-10 1977-01-11 The Continental Group, Inc. Vented easy-open end closure with anti-tear mechanism
US4022346A (en) * 1976-05-10 1977-05-10 The Continental Group, Inc. Hold down mechanism for lanced tab
US4108331A (en) * 1976-11-02 1978-08-22 The Continental Group, Inc. Non-obstructing end closure
WO1988005407A1 (en) * 1987-01-23 1988-07-28 Weirton Steel Corporation Disc removal end wall structure with safety features
WO1988005406A1 (en) * 1987-01-23 1988-07-28 Saunders William T Disc removal end wall structure with safety features
WO1988005405A1 (en) * 1987-01-23 1988-07-28 Saunders William T Disc removal end wall structure with safety features

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3202882B2 (ja) * 1994-02-25 2001-08-27 忠男 小林 タ ブ
DK173974B1 (da) * 1996-09-26 2002-03-18 Glud & Marstrand As Dåse med låg, som er forsynet med løftering

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501046A (en) * 1968-08-02 1970-03-17 Continental Can Co Pull tab configuration
US3586203A (en) * 1969-09-04 1971-06-22 Fraze Ermal C Lever tab for easy open container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3501046A (en) * 1968-08-02 1970-03-17 Continental Can Co Pull tab configuration
US3586203A (en) * 1969-09-04 1971-06-22 Fraze Ermal C Lever tab for easy open container

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915334A (en) * 1975-02-10 1975-10-28 Continental Can Co Rivet panel (bellow) for easy-o end unit rivet structure
US4002262A (en) * 1976-05-10 1977-01-11 The Continental Group, Inc. Vented easy-open end closure with anti-tear mechanism
US4022346A (en) * 1976-05-10 1977-05-10 The Continental Group, Inc. Hold down mechanism for lanced tab
US4108331A (en) * 1976-11-02 1978-08-22 The Continental Group, Inc. Non-obstructing end closure
WO1988005407A1 (en) * 1987-01-23 1988-07-28 Weirton Steel Corporation Disc removal end wall structure with safety features
WO1988005406A1 (en) * 1987-01-23 1988-07-28 Saunders William T Disc removal end wall structure with safety features
WO1988005405A1 (en) * 1987-01-23 1988-07-28 Saunders William T Disc removal end wall structure with safety features
US4848623A (en) * 1987-01-23 1989-07-18 Weirton Steel Corporation Disc removal end wall structure with safety features

Also Published As

Publication number Publication date
DE2016513B2 (de) 1973-09-27
DE2016513A1 (de) 1971-10-21
BE757233A (fr) 1971-03-16
DE2016513C3 (de) 1974-04-25
GB1289391A (enrdf_load_stackoverflow) 1972-09-20
CA930320A (en) 1973-07-17
SE364235B (enrdf_load_stackoverflow) 1974-02-18

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