US3674171A - Fully opening cover of sheet metal for cans - Google Patents

Fully opening cover of sheet metal for cans Download PDF

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Publication number
US3674171A
US3674171A US95551A US3674171DA US3674171A US 3674171 A US3674171 A US 3674171A US 95551 A US95551 A US 95551A US 3674171D A US3674171D A US 3674171DA US 3674171 A US3674171 A US 3674171A
Authority
US
United States
Prior art keywords
platform
closure
pull tab
end panel
shoulders
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
US95551A
Other languages
English (en)
Inventor
Hans Joachim Fahlbusch
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.)
Ardagh Metal Packaging Germany GmbH
Original Assignee
Schmalback Lubeca AG
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 Schmalback Lubeca AG filed Critical Schmalback Lubeca AG
Application granted granted Critical
Publication of US3674171A publication Critical patent/US3674171A/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
    • 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

  • This disclosure relates to a full opening easy opening closure which has an end panel with a graduated spring profile which Foreign Application Dill I facilitates expansion and contraction as may occur during the 8 1969 Germany G 69 47 543 0 sterilization of a product within a closed container.
  • the end panel Sil. is provided with a Shock absorbing bead adjacent the chuck [58] Field 0 Search 220/59 48 66 wall and the pull tab is mounted on a platform which extends radially into the spring profile areas, but is not affected thereby.
  • Full opening covers for cans are known, where a single score line runs close to the chuck wall of the cover and concentrically to it. It has furthermore been known to attach a pull tab to the area which can be torn open in such a way that a rupture initiating edge will lie above the score line, while the tab extends radially to said score line and constitutes a rigid lever which at its free end has a section of a handle.
  • the cover surface at a radial distance from the score line has in its cross section a spring profile graduated from the outside to the inside in the manner of terraces defined by several concentric beads or shoulders, and
  • a platform for the attachment of the pull tab which projects from the edge area of the cover surface containing the score line and extending radially inwardly and at the same level as said edge area.
  • the reinforcement of the edge area in which the score line is located is increased further by the radially extending platform, which serves for the attachment of the pull tab.
  • This platform pennits a secure and reliable attachment of the tab, and this is accomplished in such a way that it will remain in parallel to the central area of the cover surface, whereby the end of the handle portion of the tab lies at a slight distance above the deepest part of the cover surface, so that the pull tab can easily be grasped.
  • this platform either does not influence the spring movement of the cover or merely changes its shape and position insignificantly in the case of these spring movements of the cover, so that the spring movements of the cover remain without any influence on the pull tab. Therefore, there is no danger for the spring movements of the cover to lead via the pull tab to a premature ripping open of the cover along the score line.
  • the platform at its end pointing toward the center of the closure extends generally conically into the deepest part of the surface cover, so that this portion of the platform represents practically a continuous prolongation of the slanting shoulder lying the farthest inside.
  • FIG. 1 is a top view of a closure according to the invention prior to the attachment of the pull tab.
  • FIG. 2 is a vertical sectional view through the lid of FIG. 1 on an enlarged scale.
  • FIG. 3 is an enlarged partial top view of the closure with a pull tab attached.
  • FIGS. 1 and 2 a container 1 with a closure 2 connected thereto by a double seam 3 is shown in FIGS. 1 and 2.
  • the closure 2 has a chuck wall 4 forming part of the double seam 3, which has immediately adjacent thereto a dampening bead 5 running concentrically over the entire periphery.
  • a score or indented line 6 disposed in concentric relation to the edge.
  • a first concentric shoulder 9 fol-' lowed by two more shoulders 10 and 1 l at spaced intervals lies inside the cover surface at a noticeable distance from the score or weakening line 6, so that the cover surface viewed in cross section has a terrace shaped profile lowered to the inside, as can be seen best from the right half of FIG. 2.
  • a radial platform 12 projects radially inwardly.
  • the platfon-n 12 is at the same level as the edge area in which the score line 6 lies.
  • Means for attachment of the pull tab has been provided in the platform and in the case of the example shown is a rivet 7 which is molded out of the metal of the lid.
  • the platform 12 ends just in front of the central surface part 8 in a front wall 13, that runs approximately conically and which forms a continuous prolongation of the innermost shoulder 11.
  • the latform is bordered furthermore by lateral slanting shoulders 14, which run generally parallel to a radial line and which on the one hand pass over directly into the outward shoulder 9 and on the other hand end in the last platform between the shoulders 10 and 11 or the inside shoulder 11, respectively.
  • the terrace-like area constitutes the spring part of the closure, which can arch outwardly, thereby considerably increasing the volume of the container.
  • the platform 12 practically does not participate in this spring movement, and neither does the outside edge area, which lies between the outside shoulder 9 and dampening bead 5 and in which the score line 6 has been provided.
  • This outside edge area does also remain at the same time essentially free of forces which could lead to a premature ripping open of the score line 6. Any possible forces acting on the edge area are largely absorbed by the dampening bead 5, which leads essentially to the reinforcement of the edge area.
  • the platform 12 offers a secure place of attachment for the pull tab, which with its hand end projects radially inwardly beyond the platform according to FIG. 3 and which remains above the central part 8 of the closure surface so that the end of the handle of the tab can be grasped easily.
  • FIG. 3 is a preferred design of the handle flap, attached to the closure according to the invention.
  • the tab has a ring shaped handle element 16, which is formed in one piece and rigidly with the front part ofthe tab via the proper curlings and reinforcements, such as shoulders.
  • the pull tab has a force exerting edge 17, which lies immediately above the score line 16.
  • Therivet is shown in FIG. 3 in its beaded position and is therefore designated 20.
  • the pull tab does not come into contact anywhere with the spring part of the closure and does not therefore participate in the movement of that part. Therefore, the opening line can be immediately above the score line 6 without there being any danger that the closure will be ripped open prematurely.
  • the platform 12 also contributes essentially to the reinforcement of the edge area of the lid in which the score line is formed. The spring movements remain restricted to the center part of the closure.
  • the central part 8 of the closure or lid has a considerable distance from the section 16 ofthe handle ofthe tab, so that the latter can be grasped easily.
  • a full opening my opening closure comprising a seam forming portion including a chuck wall, a shock absorbing bead disposed immediately adjacent said chuck wall and surrounding an end panel, a weakening line in said end panel adjacent said shock absorbing bead defining a removable panel portion, said end panel within and spaced from said weakening line having a graduated spring profile defined by a series of concentric axially sloping shoulders, a pull tab secured to said removable panel portion for facilitating the rupture of said end panel along said weakening line and tearing out said removable panel portion, and said end panel including a substantially level platform extending radially inwardly from the area of said shock absorbing bead in underlying relation to said pull tab, said weakening line extending across said platform and said platform interrupting said concentric shoulders, v

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
US95551A 1969-12-08 1970-12-07 Fully opening cover of sheet metal for cans Expired - Lifetime US3674171A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE6947543U DE6947543U (de) 1969-12-08 1969-12-08 Voll-aufreissdeckel aus blech fuer dosen od. dgl.

Publications (1)

Publication Number Publication Date
US3674171A true US3674171A (en) 1972-07-04

Family

ID=6606920

Family Applications (1)

Application Number Title Priority Date Filing Date
US95551A Expired - Lifetime US3674171A (en) 1969-12-08 1970-12-07 Fully opening cover of sheet metal for cans

Country Status (6)

Country Link
US (1) US3674171A (fr)
CA (1) CA936815A (fr)
DE (1) DE6947543U (fr)
DK (1) DK133332C (fr)
FR (1) FR2070760B1 (fr)
SE (1) SE360835B (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5147058A (en) * 1989-10-27 1992-09-15 Sollac (Societe Anonyme) Easily opened metal lid for a container
US5671860A (en) * 1993-10-20 1997-09-30 Hoogovens Staal, B.V. Full-aperture easy-open metal can-end
US5749488A (en) * 1995-10-02 1998-05-12 Reynolds Metals Company Can end with recessed center panel formed downwardly from coin
DE19833492A1 (de) * 1998-03-23 1999-09-30 Schmalbach Lubeca Verschlußdeckel aus Blech mit abgesenktem Öffnungsbereich
US20100116374A1 (en) * 2008-11-11 2010-05-13 Crown Packaging Technology, Inc. Method of assembling an easy open container
US20100287886A1 (en) * 2009-05-14 2010-11-18 Crown Packaging Technology, Inc. Method of forming a can end having a moveable portion
USD637489S1 (en) 2010-12-10 2011-05-10 Pactiv Corporation Pull grip feature of a container lid
USD638704S1 (en) 2010-12-10 2011-05-31 Pactiv Corporation Container lid
US20120125933A1 (en) * 2008-08-21 2012-05-24 Impress Group B.V. Lid for a can and method for orientating such a lid
EP2684808A1 (fr) * 2012-07-09 2014-01-15 Ardagh MP Group Netherlands B.V. Fermeture pour un récipient et récipient équipé de celle-ci
US8733576B2 (en) 2002-06-11 2014-05-27 Crown Packaging Technology, Inc. Easily openable can lid having a movable portion for pull tab access
US9016034B2 (en) 2008-09-04 2015-04-28 Crown Packaging Technology, Inc. Easily openable can end, container, and methods of forming
US20150166216A1 (en) * 2010-10-18 2015-06-18 Silgan Containers Llc Can end with strengthening bead configuration
JP2015518802A (ja) * 2012-06-07 2015-07-06 クラウン・パッケージング・テクノロジー・インク 圧力性能を改善したイージーオープン蓋
US9199763B2 (en) 2008-01-18 2015-12-01 Crown Packaging Technology, Inc. Can end
USD840816S1 (en) 2017-07-13 2019-02-19 Ardagh Mp Group Netherlands B.V. Lid
US10618685B2 (en) 2014-12-01 2020-04-14 Ardagh Mp Group Netherlands B.V. Closure for a container and a container provided therewith
USD889978S1 (en) 2018-06-14 2020-07-14 Ardagh Mp Group Netherlands B.V. Can panel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400853A (en) * 1965-01-18 1968-09-10 Platmanufakter Ab Can for filling with hot goods
US3501046A (en) * 1968-08-02 1970-03-17 Continental Can Co Pull tab configuration

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE660231A (fr) * 1965-02-25 1965-08-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400853A (en) * 1965-01-18 1968-09-10 Platmanufakter Ab Can for filling with hot goods
US3501046A (en) * 1968-08-02 1970-03-17 Continental Can Co Pull tab configuration

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5147058A (en) * 1989-10-27 1992-09-15 Sollac (Societe Anonyme) Easily opened metal lid for a container
US5671860A (en) * 1993-10-20 1997-09-30 Hoogovens Staal, B.V. Full-aperture easy-open metal can-end
US5749488A (en) * 1995-10-02 1998-05-12 Reynolds Metals Company Can end with recessed center panel formed downwardly from coin
DE19833492A1 (de) * 1998-03-23 1999-09-30 Schmalbach Lubeca Verschlußdeckel aus Blech mit abgesenktem Öffnungsbereich
US8733576B2 (en) 2002-06-11 2014-05-27 Crown Packaging Technology, Inc. Easily openable can lid having a movable portion for pull tab access
US9199763B2 (en) 2008-01-18 2015-12-01 Crown Packaging Technology, Inc. Can end
US8534485B2 (en) * 2008-08-21 2013-09-17 Impress Group B.V. Lid for a can and method for orientating such a Lid
RU2514608C2 (ru) * 2008-08-21 2014-04-27 Импресс Груп Б.В. Крышка для банки и способ ориентирования такой крышки
US20120125933A1 (en) * 2008-08-21 2012-05-24 Impress Group B.V. Lid for a can and method for orientating such a lid
US9016034B2 (en) 2008-09-04 2015-04-28 Crown Packaging Technology, Inc. Easily openable can end, container, and methods of forming
US20100116374A1 (en) * 2008-11-11 2010-05-13 Crown Packaging Technology, Inc. Method of assembling an easy open container
US20100287886A1 (en) * 2009-05-14 2010-11-18 Crown Packaging Technology, Inc. Method of forming a can end having a moveable portion
US8454292B2 (en) 2009-05-14 2013-06-04 Crown Packaging Technology, Inc. Method of forming a can end having a moveable portion
US9550604B2 (en) * 2010-10-18 2017-01-24 Silgan Containers Llc Can end with strengthening bead configuration
US20150166216A1 (en) * 2010-10-18 2015-06-18 Silgan Containers Llc Can end with strengthening bead configuration
USD637489S1 (en) 2010-12-10 2011-05-10 Pactiv Corporation Pull grip feature of a container lid
USD638704S1 (en) 2010-12-10 2011-05-31 Pactiv Corporation Container lid
JP2015518802A (ja) * 2012-06-07 2015-07-06 クラウン・パッケージング・テクノロジー・インク 圧力性能を改善したイージーオープン蓋
WO2014009195A1 (fr) * 2012-07-09 2014-01-16 Ardagh Mp Group Netherlands B.V. Fermeture pour un récipient et récipient la comportant
EP2684808A1 (fr) * 2012-07-09 2014-01-15 Ardagh MP Group Netherlands B.V. Fermeture pour un récipient et récipient équipé de celle-ci
US10618685B2 (en) 2014-12-01 2020-04-14 Ardagh Mp Group Netherlands B.V. Closure for a container and a container provided therewith
USD840816S1 (en) 2017-07-13 2019-02-19 Ardagh Mp Group Netherlands B.V. Lid
USD889978S1 (en) 2018-06-14 2020-07-14 Ardagh Mp Group Netherlands B.V. Can panel

Also Published As

Publication number Publication date
FR2070760A1 (fr) 1971-09-17
FR2070760B1 (fr) 1978-03-10
SE360835B (fr) 1973-10-08
CA936815A (en) 1973-11-13
DK133332B (da) 1976-05-03
DE6947543U (de) 1970-03-26
DK133332C (da) 1976-09-27

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