US3591037A - Container with removable panel portion - Google Patents

Container with removable panel portion Download PDF

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Publication number
US3591037A
US3591037A US801656A US3591037DA US3591037A US 3591037 A US3591037 A US 3591037A US 801656 A US801656 A US 801656A US 3591037D A US3591037D A US 3591037DA US 3591037 A US3591037 A US 3591037A
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US
United States
Prior art keywords
line
removable
adjacent
container
removable portion
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
US801656A
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English (en)
Inventor
Howard Dale Schrecker
Robert Edwin Heffner
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.)
Howmet Aerospace Inc
Original Assignee
Aluminum Company of America
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Filing date
Publication date
Application filed by Aluminum Company of America filed Critical Aluminum Company of America
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Publication of US3591037A publication Critical patent/US3591037A/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
    • 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

  • Brownlee ABSTRACT A container having a removable panel portion in one of its walls defined by a score line around the periphery of such portion and having a pull tab attached to the removable portion at its starting end and a plurality of parallel ribs downwardly embossed in the removable portion adjacent its starting end substantially parallel to a line tangent to the score line at such starting end, and additional parallel ribs downwardly embossed in the removable portion adjacent its terminal end substantially normal to a line tangent to the score line at such terminal end.
  • This invention provides a container wall having a removable panel portion therein which is defined by a line of weakness around the outer periphery of the removable portion and has a tab affixed to such portion near the edge thereof in its starting end, the removable panel portion having means adjacent its starting end for reinforcing the portion parallel to a line drawn tangent to the line of weakness at such starting end.
  • the removable portion may also be provided with means adjacent its terminal end for reinforcing such portion normal to a line drawn tangent to the line of weakness at such terminal end.
  • an object of the invention is to provide means for controlling the direction of bending a removable portion of a container panel during opening thereof.
  • Another object of the invention is to provide embossed ribs in a removable portion of a container panel to assure ease of opening of such a container.
  • FIG. I is a plan view illustrating a container provided with a removable portion in the top panel thereof in accordance with the invention.
  • FIG. 2 is a cross-sectional view of the container taken along line lI-ll of FIG. 1;
  • FIG. 3 is a fragmentary cross-sectional view similar to FIG. 2 illustrating initiation of opening of the container.
  • FIG. 4 is a cross-sectional view similar to FIG. 2 illustrating completion of opening of the container.
  • a preferred embodiment of the invention is illustrated in the form of a rectangularly shaped container having a top wall or panel thereof made of metal, preferably aluminum or aluminum alloy of a relatively thin gauge in the range of 0.007 inch to 0.012 inch and having a peripheral flange 12 adapted to be secured by conventional means such as seaming to a sidewall 14 of the container 10.
  • a rectangularly shaped full pull-out-panel portion I6 defined by a score line 18 or other line of weakness around the periphery thereof is provided in the container wall for gaining access to the contents of such a container.
  • Score line 18 is formed closely adjacent peripheral flange I2, and an antifracture score line 20 which isshallower, or has a thicker residual, than the removable panel defining score line 18 may be provided inwardly of, and adjacent to, score line 18 as shown.
  • a pull tab 22 is disposed over full pull-out-panel portion 16 and affixed thereto near its edge in what will be referred to as the starting end of the panel portion 16, by conventional means such as integral rivet 24.
  • the starting end of removable portion 16 is located in a corner thereof to facilitate opening of the container.
  • Tab 22 has a nose end 26 overlying the removable panel portion 16 adjacent score line 18 and a handle end 28 in the shape of a ring inwardly of score line 18 and overlying panel portion 16.
  • Tab 22 is preferably formed of sheet metal such as aluminum or aluminum alloy and has a curled bead around the ring and along the sides of the tab.
  • the nose end 26 of tab 22 is recessed around the attachment portion to provide a wall which is substantially flush with the panel portion 16 of container 10, and may have reinforcement ribs 34 adjacent such recessed area.
  • the nose 26 of the tab 22 may also be provided with upwardly turned lips 27 along the edge thereof to reinforce the nose and provide a concentration of force at its end.
  • removable panel portion 16 be provided with reinforcing means for resisting bulging or doming of the portion 16 during opening.
  • reinforcing is provided in the form of three parallel ribs 30 embossed in portion 16 adjacent the starting end of the portion and the attachment of tab 22 thereto, interiorly of the area of suchattachment, and disposed substantially parallel to a line XX drawn tangent to score line 18 at such starting end of the panel, and in particular, tangent to score line 18 at the point of initial rupture thereof.
  • Ribs 30 reinforce removable panel portion 16 along the length of such ribs across and adjacent the starting end of portion 16 to resist bending of the panel portion 16 in a direction perpendicular to the ribs while permitting the panel portion to bend parallel to the ribs.
  • ribs 30 are downwardly embossed in panel 16, but may also be upwardly embossed therein. When downwardly embossed as illustrated, a space is provided under the innermost end of tab 22 by the innermost rib to facilitate insertion of a finger or finger nail under the end of tab 22 to lift the same.
  • a container having downwardly embossed ribs in removable panel portion 16 can be filled so as to substantially eliminate any air space between the containers contents and the top panel than can a container having upwardly embossed ribs in the removable panel portion.
  • downwardly embossed ribs usually produce no air spaces whatsoever in a filled and sealed container.
  • successive ribs 30 are of progressively greater length as disposed further from the rivet attachment with each rib extending substantially across the width of the removable panel portion 16 adjacent its starting end.
  • Reinforcing means may also be provided in panel portion 16 adjacent its terminal end to resist bending or curling of the portion adjacent such terminal end parallel to a line drawn tangent to thescore line at the terminal end of the panel portion.
  • a tangent line would be colinear with score line 18 along the short side of container 10 at the terminal end of panel portion 16.
  • the reinforcing means would be provided to resist bending of the panel portion parallel to a line drawn tangent to the line of weakness at the point of terminal rupture thereof.
  • reinforcement in the panel portion 16 adjacent its terminal end is provided by three parallel ribs 32 downwardly embossed in panel portion 16 and aligned perpendicular to score line 18 across the terminal end of the portion. It is noted, however, that the orientation of such embossmen ts is not critical as long as they provide resistance to curling of the panel portion parallel to score line 18 as hereinabove described. For example two sets of parallel ribs perpendicular to each other and disposed diagonally to score line 18 along the short side of container distal tab 22 would also provide the desired reinforcement in panel 16. As with ribs 30, ribs 32 may be either upwardly or downwardly embossed in removable portion 16.
  • commencement of the severance of score line 18 to remove panel portion 16 is illustrated showing bending of portion 16 adjacent the attachment of tab 22 to the panel parallel to reinforcing ribs 30, but with resistance being provided by ribs 30 against bending or doming of the panel portion perpendicular to ribs 30. It is observed that panel por tion I6 is shown as being substantially straight along the length of ribs or perpendicular to the plane of the paper with no doming therein.
  • FIG. 4 reveals panel portion 16 as it is finally separated from container 10. It is seen in FIG. 4 that the terminal end of panel portion 16 is substantially flat as reinforced by ribs 32. In the absence of reinforcement in portion 16 normal to a line tangent to the score line at the point of final severance, the portion would tend to curl towards the terminal end thereof as severance approaches such terminal end, rather than rupture the score line. Consequently, if panel portion were permitted to bend or curl, severance of the score line at the terminal end of the portion could be difficult and might require flexing of the removable portion several times to effect 'such severance.
  • the reinforcing in panel portion 16 adjacent its terminal end eliminates such curling and spring back, thereby avoiding any difficulty in separating a removable portion from a container.
  • the container could have a round, square or oval end wall and may have various shapes of large removable panels therein.
  • the tab could also be any of the many tabs known in the art for attachment to a removable panel to effect removal thereof. It is also contemplated that the reinforcement ribs or other structure in the removable panel could be of various configuration and orientation which would provide the desired reinforcement in the removable panel portion.
  • a tab disposed t ereover and attached thereto at said starting end for severance of said portion, the improvement comprising said tab being attached to the starting end of the removable portion in a rounded corner thereof closely adjacent the line of weakness, and further including means in said removable portion for reinforcing the same across and adjacent its starting end substantially parallel to a line tangent to said line of weakness at the starting end and interiorly of the area of attachment of said tab to said portion, and means in said removable portion for reinforcing the same adjacent its terminal end substantially normal to a line tangent to the line of weakness at said terminal end.
  • a container panel as set forth in claim I in which said means for reinforcing the removable portion adjacent its starting end comprises at least three parallel ribs embossed in the starting end of said removable portion.
  • a container panel as set forth in claim 1 in which said tab has a nose end with an outer edge substantially aligned with the line of weakness along said rounded corner for acting on said removable portion along said line of weakness.
  • a container panel as set forth in claim It in which said means for reinforcing the removable portion adjacent its terminal end comprises at least three ribs embossed in the removable portion adjacent said terminal end.
  • a container panel as set forth in claim 6 in which the ribs adjacent the terminal end of the removable portion are downwardly embossed therein.
US801656A 1969-02-24 1969-02-24 Container with removable panel portion Expired - Lifetime US3591037A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80165669A 1969-02-24 1969-02-24

Publications (1)

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US3591037A true US3591037A (en) 1971-07-06

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US801656A Expired - Lifetime US3591037A (en) 1969-02-24 1969-02-24 Container with removable panel portion

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US (1) US3591037A (de)
BR (1) BR7016844D0 (de)
DE (1) DE2007930A1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653536A (en) * 1970-08-31 1972-04-04 Aluminum Co Of America Easy opening device for a rectangular container end
US3662916A (en) * 1970-11-23 1972-05-16 Continental Can Co Easy opening container
US3785522A (en) * 1970-01-08 1974-01-15 Cebal Gp Lid for easy opening cans
US3858753A (en) * 1972-04-06 1975-01-07 Stolle Corp Easy-open can end
US4593834A (en) * 1984-08-17 1986-06-10 Schmalbach-Lubeca Ag Opening means for oblong cans
US4690297A (en) * 1985-10-02 1987-09-01 Schmalbach-Lubeca Ag Opening means for oblong cans
US5832770A (en) * 1993-10-08 1998-11-10 Schmalbach-Lubeca Ag Process for further treating a closure end made of sheet
US20050178379A1 (en) * 2004-01-14 2005-08-18 Michael Weinberger Alcohol gel fireplace burner
US20060039780A1 (en) * 2004-08-20 2006-02-23 Butcher Gregory H Non-circular can end with corner-mounted tab and tooling and a conversion press for providing same
US20060042982A1 (en) * 2004-09-01 2006-03-02 Goodwin G W Jr Welding rod container
WO2020152439A1 (en) * 2019-01-23 2020-07-30 Crown Packaging Technology, Inc. Easy open end with increased panel stiffness
RU2811781C2 (ru) * 2019-01-23 2024-01-17 Эвиозис Пэкеджинг Свитцерланд ГмбХ Легко открываемая торцевая крышка с увеличенной жесткостью панели

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3088913B1 (fr) * 2018-11-27 2021-07-02 Ardagh Mp Group Netherlands Bv Couvercle pour un corps de contenant, en particulier pour un contenant du genre boîte de conserve
FR3088914B1 (fr) * 2018-11-27 2020-11-20 Ardagh Mp Group Netherlands Bv Couvercle pour un corps de contenant, en particulier pour un contenant du genre boîte de conserve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2313198A (en) * 1938-07-04 1943-03-09 Haustrup Niels Johannes Key-opening can
US3430802A (en) * 1967-05-15 1969-03-04 American Can Co Easy-opening can
US3441171A (en) * 1968-03-11 1969-04-29 Continental Can Co Easy-opening container panel structure
US3478918A (en) * 1968-08-14 1969-11-18 American Can Co Full open end closure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2313198A (en) * 1938-07-04 1943-03-09 Haustrup Niels Johannes Key-opening can
US3430802A (en) * 1967-05-15 1969-03-04 American Can Co Easy-opening can
US3441171A (en) * 1968-03-11 1969-04-29 Continental Can Co Easy-opening container panel structure
US3478918A (en) * 1968-08-14 1969-11-18 American Can Co Full open end closure

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785522A (en) * 1970-01-08 1974-01-15 Cebal Gp Lid for easy opening cans
US3653536A (en) * 1970-08-31 1972-04-04 Aluminum Co Of America Easy opening device for a rectangular container end
US3662916A (en) * 1970-11-23 1972-05-16 Continental Can Co Easy opening container
US3858753A (en) * 1972-04-06 1975-01-07 Stolle Corp Easy-open can end
US4593834A (en) * 1984-08-17 1986-06-10 Schmalbach-Lubeca Ag Opening means for oblong cans
AU577878B2 (en) * 1984-08-17 1988-10-06 Schmalbach-Lubeca Ag Non spring opening of frangible member
US4690297A (en) * 1985-10-02 1987-09-01 Schmalbach-Lubeca Ag Opening means for oblong cans
AU588359B2 (en) * 1985-10-02 1989-09-14 Schmalbach-Lubeca Ag A tin lid for out-of-round cans,in particular cans of oblong shape in hansa format
US5832770A (en) * 1993-10-08 1998-11-10 Schmalbach-Lubeca Ag Process for further treating a closure end made of sheet
US20050178379A1 (en) * 2004-01-14 2005-08-18 Michael Weinberger Alcohol gel fireplace burner
US20060039780A1 (en) * 2004-08-20 2006-02-23 Butcher Gregory H Non-circular can end with corner-mounted tab and tooling and a conversion press for providing same
US7270246B2 (en) * 2004-08-20 2007-09-18 Stolle Machinery Company, Llc Non-circular can end with corner-mounted tab and tooling and a conversion press for providing same
US20060042982A1 (en) * 2004-09-01 2006-03-02 Goodwin G W Jr Welding rod container
WO2020152439A1 (en) * 2019-01-23 2020-07-30 Crown Packaging Technology, Inc. Easy open end with increased panel stiffness
CN113365921A (zh) * 2019-01-23 2021-09-07 皇冠包装技术公司 具有增加的板刚度的易开盖
CN113365921B (zh) * 2019-01-23 2023-11-03 皇冠包装技术公司 用于封闭金属罐身的金属易开罐盖及制造该罐盖的方法
RU2811781C2 (ru) * 2019-01-23 2024-01-17 Эвиозис Пэкеджинг Свитцерланд ГмбХ Легко открываемая торцевая крышка с увеличенной жесткостью панели

Also Published As

Publication number Publication date
BR7016844D0 (pt) 1973-02-01
DE2007930A1 (de) 1970-08-27

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