ES2525589A1 - Double opening system for beverage cans by means of a single operation of its ring (Machine-translation by Google Translate, not legally binding) - Google Patents

Double opening system for beverage cans by means of a single operation of its ring (Machine-translation by Google Translate, not legally binding) Download PDF

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Publication number
ES2525589A1
ES2525589A1 ES201430810A ES201430810A ES2525589A1 ES 2525589 A1 ES2525589 A1 ES 2525589A1 ES 201430810 A ES201430810 A ES 201430810A ES 201430810 A ES201430810 A ES 201430810A ES 2525589 A1 ES2525589 A1 ES 2525589A1
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Spain
Prior art keywords
ring
rivet
tilting
lid
opening system
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ES201430810A
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ES2525589B1 (en
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Saturnino CASTILLO OÑATE
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D17/00Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28Rigid 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
    • B65D17/401Rigid 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
    • B65D17/4012Rigid 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)

Abstract

Double opening system for beverage cans by means of a single actuation of its ring, located in the upper lid (1) of the can, which by means of a single complete tilting of a ring (2) is made, during its displacement, by tearing or die cut (6), due to the tilting effort of the rivet (3), to obtain the ventilation hole. Next, the cutting of the blanks (7) located on the inner sides of the end of the ring (2) occurs, to allow the complete tilting of the ring (2). Finally, the complete tearing of the die (5) delimiting a cover (4) is produced, which when the ring (2) is fully tilted through the rivet (3) as an articulation element thereof, once the punched pieces have been torn (7). ), the lid (4) is detached towards the inside to establish the outlet of the liquid. (Machine-translation by Google Translate, not legally binding)

Description

Sistema de doble apertura para latas de bebidas mediante un único accionamiento de su anilla Double opening system for beverage cans through a single drive of its ring

5 Objeto de la invención. 5 Object of the invention.

La presente invención, según se expresa en el título de esta memoria descriptiva, se refiere a un sistema de doble apertura para latas de bebidas mediante un único accionamiento de su anilla, para su aplicación a los tradicionales envases contenedores de líquidos tales como latas o botes The present invention, as expressed in the title of this specification, refers to a double opening system for beverage cans by means of a single actuation of its ring, for application to traditional liquid container containers such as cans or cans.

10 de refrescos, cervezas, etc. El objeto de la invención es realizar dos aperturas independientes en la tapa superior de la lata, una para salida del líquido contenido y otra de menor tamaño para la entrada de aire, al objeto de conseguir una salida rápida y ordenada del líquido contenido en la lata de bebida. 10 sodas, beers, etc. The object of the invention is to make two independent openings in the upper lid of the can, one for the exit of the contained liquid and the other of smaller size for the entry of air, in order to achieve a rapid and orderly exit of the liquid contained in the can. of drink

15 Antecedentes de la invención 15 Background of the invention

Los contenedores de bebidas del tipo citado anteriormente, están formados por la unión de un cuerpo generalmente cilíndrico, estrangulado en sus extremos, una base de cierre inferior y una tapa que se fija a la embocadura del cuerpo cilíndrico mediante engatillado o similar. En la tapa 20 superior está establecido un troquelado determinante de una línea de debilitamiento para obtener, en su momento, un orificio de vertido o de salida de la bebida. En proximidad a dicho troquelado se incluye un remache de fijación de una anilla de apertura, la cual puede bascular mediante el accionamiento manual del consumidor y efectuar el desgarro por la línea de debilitamiento y por lo tanto la apertura de la lata, permitiendo el vaciado del contenido a través The beverage containers of the aforementioned type, are formed by the union of a generally cylindrical body, strangled at its ends, a bottom closure base and a lid that is fixed to the mouth of the cylindrical body by means of hooking or the like. In the upper lid 20 a die cutter determining a weakening line is established to obtain, at the time, a pouring or outlet opening of the beverage. In proximity to said die cutting, a fixing rivet of an opening ring is included, which can be tilted by the manual operation of the consumer and tear through the line of weakening and therefore the opening of the can, allowing the emptying of the can content through

25 del orificio resultante. 25 of the resulting hole.

El orificio referido constituye tanto la vía para el vaciado del líquido como la vía para la entrada del aire exterior hacia el interior de la lata. Esta coincidencia entre las vías de entrada y salida hace que la salida del líquido contenido se produzca de forma desordenada, pues se alterna la The aforementioned orifice constitutes both the path for the emptying of the liquid and the path for the entrance of the outside air into the can. This coincidence between the entry and exit paths causes the exit of the contained liquid to occur in a disorderly manner, since the

30 salida de borbotones del líquido con la entrada de burbujas de aire en el interior de la lata. 30 spurting out of the liquid with the entry of air bubbles inside the can.

Para solucionar esta problemática se han propuesto diversas soluciones en las que además del orificio convencional para la salida del líquido, se realiza un segundo orificio de menores dimensiones para la entrada del aire. Para ello, estas soluciones incluyen un segundo contorno In order to solve this problem, various solutions have been proposed in which, in addition to the conventional orifice for the exit of the liquid, a second orifice of smaller dimensions for the air inlet is made. To do this, these solutions include a second contour

35 troquelado, cuyo desgarro crea este segundo orificio para la entrada de aire, evitando con ello la salida descontrolada del líquido contenido en la lata. 35 die-cut, whose tear creates this second hole for air intake, thereby preventing uncontrolled leakage of the liquid contained in the can.

Los sistemas propuestos hasta ahora utilizan diferentes procedimientos para realizar ambos orificios, coincidiendo todos ellos en que los dispositivos empleados para la apertura de los The systems proposed so far use different procedures to make both holes, all of them agree that the devices used to open the

40 orificios deben utilizarse de forma separada, uno a continuación de otro. Generalmente, se realiza en primer lugar la apertura principal para el vaciado del líquido y posteriormente la de aireación, mediante la actuación de la anilla de apertura en una posición diferente a la habitual, o mediante una segunda anilla o dispositivo, que presiona en la superficie de la tapa de la lata para realizar el orificio de entrada de aire. 40 holes must be used separately, one after the other. Generally, the main opening is first performed for the emptying of the liquid and then the aeration opening, by acting on the opening ring in a different position than usual, or by means of a second ring or device, which presses on the surface from the can lid to make the air inlet hole.

45 Estos procedimientos cuentan con el inconveniente de precisar de dos operaciones diferentes por parte del usuario para conseguir el orificio de vertido y el orificio de ventilación. Dado que los consumidores de bebidas que emplean este tipo de latas no están habituados a los diferentes sistemas propuestos para conseguir la salida ordenada de líquido, estando en cambio 45 These procedures have the disadvantage of requiring two different operations on the part of the user to achieve the pouring hole and the ventilation hole. Since consumers of beverages that use this type of cans are not accustomed to the different systems proposed to achieve the orderly exit of liquid, being instead

50 acostumbrados al sistema tradicional de apertura por anilla única mediante un solo 50 accustomed to the traditional single ring opening system using a single

accionamiento de apertura, se corre el riesgo de que estos sistemas, en la práctica, queden sin alcanzar el efecto deseado al no ser adecuadamente manipulados. opening drive, there is a risk that these systems, in practice, will not achieve the desired effect by not being properly manipulated.

Descripción de la invención Description of the invention

5 El sistema de la invención está previsto para solucionar la problemática planteada, de tal forma que cuando se acciona la anilla para realizar el clásico y convencional orificio para la salida del líquido, se realiza también un segundo orificio de menores dimensiones para la entrada del aire. Este segundo orificio, situado a una distancia conveniente del remache de sujeción de la anilla, se 5 The system of the invention is intended to solve the problem raised, in such a way that when the ring is activated to make the classic and conventional hole for the exit of the liquid, a second orifice of smaller dimensions for the air inlet is also made. This second hole, located at a convenient distance from the ring fastening rivet, is

10 consigue gracias a un segundo contorno troquelado de menor tamaño cuyo desgarro lleva consigo el establecimiento del segundo orificio para la entrada de aire, independientemente del orificio de salida del líquido, evitando con ello los borbotones o salida descontrolada de este. 10 achieves thanks to a second die cut contour of smaller size whose tear entails the establishment of the second orifice for the entry of air, independently of the orifice of exit of the liquid, thereby avoiding the spurts or uncontrolled exit of this.

La apertura o rasgado del sector debilitado secundario, o de aireación, se realiza gracias al The opening or tearing of the secondary weakened sector, or aeration, is done thanks to the

15 esfuerzo transmitido, a través de la chapa de la tapa, por el remache de sujeción de la anilla en un movimiento basculante que aparece al ser accionada la anilla por el consumidor. En la invención propuesta, la anilla de apertura hace bascular ligeramente al remache gracias a las modificaciones realizadas en la lengüeta de sujeción de la anilla. 15 effort transmitted, through the cover plate, by the rivet holding the ring in a tilting movement that appears when the ring is operated by the consumer. In the proposed invention, the opening ring slightly tilts the rivet thanks to the modifications made to the ring retaining tab.

20 En los sistemas tradicionales, la anilla se une al remache de sujeción mediante una lengüeta que tiene como objeto mantenerla unida al extremo de la lata y permitirle girar con el mínimo esfuerzo para realizar la apertura completa del orificio de vaciado. Sistemas conocidos como stay‐on tab. En el sistema propuesto se modifica esta lengüeta de sujeción de la anilla, pasando ahora a estar unida al cuerpo de esta en ambos laterales, de forma que permita transmitir al 20 In traditional systems, the ring is attached to the clamping rivet by means of a tongue that aims to keep it attached to the end of the can and allow it to rotate with minimum effort to perform the full opening of the drain hole. Systems known as stay ‐ on tab. In the proposed system, this ring fastening tab is modified, now becoming attached to its body on both sides, so that it can be transmitted to the

25 remache el esfuerzo realizado por la anilla al ser manipulada por el usuario. 25 rivet the effort made by the ring when manipulated by the user.

La lengüeta de la invención incorpora, en los dos laterales de su unión con la anilla, dos troquelados que determinan dos líneas de debilitamiento al objeto de permitir, una vez que se haya producido la apertura del orificio de ventilación, la rotura de estas líneas de debilitamiento y The tongue of the invention incorporates, on the two sides of its union with the ring, two punches that determine two lines of weakness in order to allow, once the opening of the ventilation hole has occurred, the breakage of these lines of weakening and

30 la consiguiente liberación de la anilla para permitir su total basculación y la apertura total del orificio de vaciado. 30 the consequent release of the ring to allow its total tilting and the total opening of the drain hole.

Cuando la anilla es accionada por el consumidor, este apreciará una resistencia ligeramente mayor que en las latas habituales, pudiéndose disminuir dicha resistencia aumentando en lo When the ring is operated by the consumer, it will appreciate a slightly greater resistance than in the usual cans, which resistance can be reduced by increasing

35 posible la longitud de la anilla y su efecto de palanca transmitido al remache. La resistencia disminuirá en el momento en que se produzca el desgarro del contorno troquelado del orificio de aireación, ayudado por la presión interna de la lata, generada por los gases contenidos en la bebida. Inmediatamente después, debido a la misma acción de apertura del consumidor, se producirá el desgarro de las dos líneas de debilitamiento de la lengüeta de la anilla, permitiendo a 35 possible the length of the ring and its lever effect transmitted to the rivet. The resistance will decrease at the moment in which the tearing contour of the aeration hole is torn, aided by the internal pressure of the can, generated by the gases contained in the beverage. Immediately afterwards, due to the same opening action of the consumer, tearing of the two lines of weakening of the tongue of the ring will occur, allowing

40 continuación el típico movimiento basculante de la anilla para conseguir finalmente el desgarro completo de la línea de debilitamiento del orificio de vertido, y por tanto, la apertura total de la lata. The typical swinging movement of the ring is then continued to finally achieve the complete tearing of the weakening line of the pouring hole, and therefore, the total opening of the can.

Descripción de las figuras Description of the figures

45 Para complementar la descripción que seguidamente se va a realizar y con objeto de ayudar a una mejor comprensión de las características del invento, se acompaña a la presente memoria descriptiva un juego de dibujos en base a los cuales se comprenderán más fácilmente las innovaciones y ventajas del sistema realizado de acuerdo con el objeto de la invención. 45 In order to complement the description that is to be carried out below and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached to the present specification based on which innovations and advantages will be more easily understood. of the system made in accordance with the object of the invention.

Figura 1.‐Muestra una representación según una perspectiva superior de una tapa de una lata o envase de bebida, con el sistema de apertura realizado de acuerdo con las mejoras de la invención. Figure 1. - Shows a representation according to an upper perspective of a lid of a can or beverage container, with the opening system made in accordance with the improvements of the invention.

5 Figura 2.‐Muestra dos variantes de la vista en planta de la tapa en la que es aplicable el sistema de apertura de la invención, y en cuyas tapas están realizados los troquelados tanto para la apertura del orificio de salida de líquido como para la apertura de entrada de aire. 5 Figure 2. ‐ Shows two variants of the plan view of the lid on which the system is applicable of opening of the invention, and in whose covers the punched ones are realized so much for the opening of the liquid outlet orifice as for the air inlet opening.

Figura 3.‐Muestra dos variantes de la vista en planta de la anilla de apertura en la que se aprecian 10 las dos líneas de debilitamiento laterales para permitir la basculación completa de la anilla. Figure 3. ‐ It shows two variants of the plan view of the opening ring in which the two lateral weakening lines can be seen to allow complete tilting of the ring.

Figura 4.‐Muestra una vista en sección del sistema de apertura aplicado sobre la tapa representada en las figuras anteriores, en situación inoperante. Figure 4. ‐ Shows a sectional view of the opening system applied on the cover shown in the previous figures, in an inoperative situation.

15 Figura 5.‐Muestra una vista en sección, como la de la figura anterior, en donde se aprecia la basculación del remache y la apertura del orificio de ventilación debido al movimiento de la anilla de apertura. La anilla sigue unida en sus laterales internos al remache de sujeción. 15 Figure 5. ‐ It shows a sectional view, like the one in the previous figure, showing the tilting of the rivet and the opening of the ventilation hole due to the movement of the opening ring. The ring is still attached on its inner sides to the clamping rivet.

Figura 6.‐Muestra una vista en sección como la de la figura anterior pero tras la basculación de la Figure 6. ‐ Shows a sectional view like the one in the previous figure but after tilting the

20 anilla principal, una vez liberada, después del desgarro del sector correspondiente al orificio de ventilación y de las líneas de debilitamiento de la anilla que la mantenían unida lateralmente al remache. 20 main ring, once released, after the tear of the sector corresponding to the ventilation hole and the weakening lines of the ring that held it laterally attached to the rivet.

Descripción de la forma de realización preferida Description of the preferred embodiment

25 Como se puede ver en las figuras referidas, el sistema de doble apertura para latas de bebidas mediante un único accionamiento de su anilla, de acuerdo con el objeto de la invención, comprende una anilla (2), situada en la tapa superior (1) de la lata, que cuando es accionada por el consumidor y mientras se realiza la basculación completa de esta anilla (2), se produce primero As can be seen in the aforementioned figures, the double opening system for beverage cans by means of a single actuation of its ring, according to the object of the invention, comprises a ring (2), located in the upper cover (1 ) of the can, which when activated by the consumer and while the complete tilting of this ring (2) is performed, occurs first

30 el rasgado o corte del troquelado (6), por efecto del esfuerzo basculante del remache (3), trasmitido al estar sujeto a la anilla (2) a través de los troquelados (7), para obtener así el orificio de ventilación. A continuación se produce la rotura de los troquelados (7) situados en los laterales interiores del extremo de la anilla (2), para permitir la continuación del basculado de la anilla (2). Finalmente se produce el rasgado completo del troquelado (5) que delimita una tapa (4) que al 30 the tearing or cutting of the die cut (6), as a result of the tilting force of the rivet (3), transmitted by being attached to the ring (2) through the die cuts (7), in order to obtain the ventilation hole. The breakage of the punches (7) located on the inner sides of the end of the ring (2), to allow continuation of the tilting of the ring (2). Finally there is the complete tearing of the die cut (5) that delimits a cover (4) that when

35 ser basculada completamente la anilla (2) a través del remache (3) como elemento de articulación de la misma, una vez rasgados los troquelados (7), se efectúa el desprendimiento de esa tapa (4) hacia el interior de la lata para establecer el orificio de salida del líquido. 35 the ring (2) be completely tilted through the rivet (3) as an articulation element thereof, once the punches (7) are torn, detachment of that lid (4) into the can can be made set the liquid outlet hole.

La apertura del orificio de ventilación permite consumir el líquido contenido en la lata a la vez que The opening of the ventilation hole allows to consume the liquid contained in the can while

40 entra aire por este, originado por el desgarro delimitado por el troquelado (6), estando éste lo suficientemente distante del troquelado (5) correspondiente al orificio de salida del líquido, para impedir que cuando se lleva a cabo el consumo de dicho líquido éste pueda salir por el orificio del troquelado (6). En caso necesario, pueden alejarse ambos orificios bien aumentando el tamaño del remache (3) o reforzando la zona entre este remache y el troquelado (6) para transmitir 40 air enters through it, caused by the tear delimited by the die cut (6), this being sufficiently distant from the die cut (5) corresponding to the exit hole of the liquid, to prevent that when the consumption of said liquid is carried out this can exit through the hole of the die cut (6). If necessary, both holes can be moved away either by increasing the size of the rivet (3) or by strengthening the area between this rivet and the punch (6) to transmit

45 adecuadamente el esfuerzo aplicado sobre el remache (3) por la anilla de apertura (2). 45 suitably the effort applied on the rivet (3) by the opening ring (2).

Entre el troquelado (6) y el remache (3) para dar mayor consistencia a esa zona de la tapa, se ha previsto una embutición (8), tal y como se representa en la figura 2. Between the punch (6) and the rivet (3) to give greater consistency to that area of the lid, a drawing (8) is provided, as shown in Figure 2.

Claims (3)

REIVINDICACIONES 1.‐Sistema de doble apertura para latas de bebidas mediante un único accionamiento de su anilla 1. ‐ Double opening system for beverage cans by a single drive of its ring (2) en donde la correspondiente tapa (1) de lata de bebida presenta dos sectores troquelados (5 y (2) where the corresponding lid (1) of the beverage can has two die-cut sectors (5 and 5 6) destinados a ser rasgados para establecer, respectivamente, un orificio de salida del líquido contenido en la lata y un orificio para entrada de aire, y en donde una anilla de apertura (2) se encuentra unida a la tapa (1) mediante el remache de sujeción (3) caracterizado por que la anilla 5 6) intended to be torn to establish, respectively, an outlet orifice of the liquid contained in the can and an orifice for air intake, and wherein an opening ring (2) is attached to the lid (1) by the clamping rivet (3) characterized in that the ring (2) cuenta con una lengüeta de fijación al remache (3) que está unida en sus dos laterales al cuerpo de la anilla y dispone de líneas de rotura (7) en dichas uniones laterales y que al ser (2) it has a rivet fixing tab (3) that is attached on its two sides to the body of the ring and has break lines (7) in said lateral joints and that when 10 accionado por el consumidor el otro extremo de la anilla (2) transmite un esfuerzo basculante al remache (3). 10 operated by the consumer the other end of the ring (2) transmits a tilting effort to the rivet (3). 2.‐Sistema de doble apertura para latas de bebidas mediante un único accionamiento de su anilla según reivindicación 1 caracterizado por que entre el remache (3) y el troquelado (6) se realiza 15 una embutición (8) para dar mayor consistencia a la zona de la tapa (1) que transmite el esfuerzo del remache (3). 2. ‐ Double opening system for beverage cans by means of a single actuation of its ring according to claim 1 characterized in that a drawing (8) is made between the rivet (3) and the die cut (6) to give greater consistency to the area of the cover (1) that transmits the effort of the rivet (3). 3.‐Procedimiento de utilización de un sistema de doble apertura para latas de bebidas, según reivindicaciones anteriores caracterizado por que cuando es accionada por el consumidor la anilla 20 de apertura, situada en la tapa superior de la lata de bebidas, mientras se realiza la basculación completa de esta anilla se produce primero el rasgado o corte del troquelado correspondiente al orificio de ventilación, por efecto del esfuerzo basculante del remache de sujeción de la anilla; a continuación, se produce la rotura de estos troquelados laterales para permitir la continuación del basculado de la anilla; finalmente se produce el rasgado completo del troquelado de vaciado y 3. Procedure for using a double opening system for beverage cans, according to previous claims characterized in that when the consumer is opened by the opening ring 20, located in the upper lid of the beverage can, while the Complete tilting of this ring first causes the tearing or cutting of the die cut corresponding to the vent hole, due to the tilting force of the ring fastening rivet; then, the breakage of these side punches occurs to allow continuation of the ring tilting; finally the complete tearing of the emptying die occurs and 25 se efectúa el desprendimiento de esa parte de la tapa hacia el interior de la lata para establecer el orificio de salida del líquido. 25 detachment of that part of the lid into the can is carried out to establish the liquid outlet orifice. 21 twenty-one FIG. 1  FIG. one   FIG. 3  FIG. 3   26 3 26 3
1 one
FIG. 4 4 5 FIG. 4 4 5
2 2
6 6
3 3
1 one
FIG. 5 5 FIG. 5 5
2 2
3 3
1 one
6 5 6 5
FIG. 6 FIG. 6
ES201430810A 2014-05-28 2014-05-28 Double opening system for beverage cans through a single drive of its ring Withdrawn - After Issue ES2525589B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9694935B2 (en) 2013-03-15 2017-07-04 Ball Corporation End closure with a ring pull actuated secondary vent
US9714115B2 (en) 2014-07-30 2017-07-25 Ball Corporation Vented container end closure
US10017295B2 (en) 2010-08-06 2018-07-10 Ball Corporation Container end closure with optional secondary vent opening

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8567158B2 (en) 2010-08-06 2013-10-29 Ball Corporation Container end closure with optional secondary vent opening
USD691039S1 (en) 2011-10-27 2013-10-08 Ball Corporation Vented container end closure

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WO2011031681A1 (en) * 2009-09-10 2011-03-17 Arthur Joseph Emanuele Iii Vent opening mechanism
WO2013102594A1 (en) * 2012-01-03 2013-07-11 Anheuser-Busch Inbev S.A. Can comprising a maxi-dispense opening and a vent opening
WO2013124019A2 (en) * 2012-01-03 2013-08-29 Anheuser-Busch Inbev S.A. Can comprising a first, dispense opening and second, vent opening

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EP0621195A2 (en) * 1993-04-21 1994-10-26 DAYTON RELIABLE TOOL & MFG. CO. Easy-open container end
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WO2011031681A1 (en) * 2009-09-10 2011-03-17 Arthur Joseph Emanuele Iii Vent opening mechanism
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WO2013124019A2 (en) * 2012-01-03 2013-08-29 Anheuser-Busch Inbev S.A. Can comprising a first, dispense opening and second, vent opening

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US10017295B2 (en) 2010-08-06 2018-07-10 Ball Corporation Container end closure with optional secondary vent opening
US9694935B2 (en) 2013-03-15 2017-07-04 Ball Corporation End closure with a ring pull actuated secondary vent
US10556718B2 (en) 2013-03-15 2020-02-11 Ball Corporation End closure with a ring pull actuated secondary vent
US9714115B2 (en) 2014-07-30 2017-07-25 Ball Corporation Vented container end closure
US10358257B2 (en) 2014-07-30 2019-07-23 Ball Corporation Vented container end closure
US10981694B2 (en) 2014-07-30 2021-04-20 Ball Corporation Vented container end closure

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