Abrégé

A tamper evident lid is secured to a retention ring. The retention ring has an inner face sized to have an interference fit with an outer wall of a container. Also taught are methods of securing the lid, for example, placing the retention ring below the lid and around the container; lifting the retention ring to a point near the top of the container, so that there is an interference fit between the retention ring and the container; and pushing the lid down on the container to affix the lid to the retention ring.

Classes IPC  ?

• B65D 43/02 - Couvercles ou chapeaux amovibles
• B65D 17/40 - Réceptacles rigides ou semi-rigides spécialement conçus pour être ouverts par coupage ou perçage, ou en perçant ou en déchirant des éléments ou des parties frangibles le long de lignes ou à partir de points de moindre résistance caractérisés par une ligne de moindre résistance tout autour de l'ouverture du réceptacle
• B65D 43/10 - Couvercles ou chapeaux amovibles ayant un rebord périphérique s'ajustant au-dessus du bord du réceptacle et retenus par enclenchement sur des bourrelets ou saillies

Abrégé

A tamper resistant, push-on closure member for a container. The closure has a top cylindrical band portion, a bottom cylindrical band portion and a top cover. The top band has a plurality of continuous annular ridges extending inwardly along the circumference of its inner surface for contacting the side surface of the container. The bottom band has plurality of rigid teeth extending from a lower peripheral margin of the bottom band in an upward and inward direction for locking engagement against the lip of the container. The plurality of teeth are connected to a lower peripheral margin of the top band by a plurality of projections for providing a visual tamper evident indication. A plurality of tooth channels positioned between the lower margin of the top band and the upper margin of the bottom band for facilitating the flow of plastic resin during the production of the plurality of teeth.

Classes IPC  ?

• B65D 55/02 - Dispositifs de blocageMoyens pour empêcher ou indiquer l'ouverture ou l'enlèvement de la fermeture non autorisés

Abrégé

A tamper resistant, push-on closure member for a container. The closure has a top cylindrical band portion, a bottom cylindrical band portion and a top cover. The top band has a plurality of continuous annular ridges extending inwardly along the circumference of its inner surface for contacting the side surface of the container. The bottom band has plurality of rigid teeth extending from a lower peripheral margin of the bottom band in an upward and inward direction for locking engagement against the lip of the container. The plurality of teeth are connected to a lower peripheral margin of the top band by a plurality of projections for providing a visual tamper evident indication. A plurality of tooth channels positioned between the lower margin of the top band and the upper margin of the bottom band for facilitating the flow of plastic resin during the production of the plurality of teeth.

Classes IPC  ?

• B65D 55/02 - Dispositifs de blocageMoyens pour empêcher ou indiquer l'ouverture ou l'enlèvement de la fermeture non autorisés

Abrégé

A one piece molded tamper evident push-on closure suitable for closing an opening of a bottle, and method for manufacture thereof. The closure includes a cap portion, a latch ring portion and a frangible connector connecting the cap portion and the latch ring portion. The closure includes a plurality of resiliently deformable teeth extending inwardly from the latch ring portion and towards the cap portion for engaging the latch ring portion onto the neck of the bottle. The closure includes a manually engageable tab projecting from the latch ring portion to permit application of a manual force to rupture the frangible connector and permit the cap portion to be at least partially disconnected from the latch ring portion.

Classes IPC  ?

• B65D 41/48 - Capuchons à enclenchement ou couvercles analogues non métalliques, p. ex. en papier ou en plastique
• B29C 45/40 - Démoulage ou éjection des objets formés
• B29C 45/44 - Démoulage ou éjection des objets formés d'objets à contre-dépouille
• B29L 31/56 - Bouchons ou couvercles pour bouteilles, bocaux ou analogues
• B29C 45/26 - Moules

Abrégé

A one piece molded tamper evident push-on closure suitable for closing an opening of a bottle, and method for manufacture thereof. The closure includes a cap portion, a latch ring portion and a frangible connector connecting the cap portion and the latch ring portion. The closure includes a plurality of resiliently deformable teeth extending inwardly from the latch ring portion and towards the cap portion for engaging the latch ring portion onto the neck of the bottle. The closure includes a manually engageable tab projecting from the latch ring portion to permit application of a manual force to rupture the frangible connector and permit the cap portion to be at least partially disconnected from the latch ring portion.

Classes IPC  ?

• B65D 55/02 - Dispositifs de blocageMoyens pour empêcher ou indiquer l'ouverture ou l'enlèvement de la fermeture non autorisés

Abrégé

A one piece molded tamper evident push-on closure suitable for closing an opening of a bottle, and method for manufacture thereof. The closure includes a cap portion, a latch ring portion and a frangible connector connecting the cap portion and the latch ring portion. The closure includes a plurality of resiliently deformable teeth extending inwardly from the latch ring portion and towards the cap portion for engaging the latch ring portion onto the neck of the bottle. The closure includes a manually engageable tab projecting from the latch ring portion to permit application of a manual force to rupture the frangible connector and permit the cap portion to be at least partially disconnected from the latch ring portion.

Classes IPC  ?

• B65D 55/02 - Dispositifs de blocageMoyens pour empêcher ou indiquer l'ouverture ou l'enlèvement de la fermeture non autorisés

Abrégé

Conventional adhesive and contact welding methods for holding the paperboard and plastic components of a composite closure together present a number disadvantages and do not lend themselves easily to mass production. The present invention describes two novel approaches, firstly the pre-assembly heating of the closure components with directed hot air to partially melt the thermoplastic surfaces and allow the parts to be immediately assembled sealingly and, secondly, a novel construction of plastic and paperboard composite closure in which the plastic rim is of a two-piece snap-fit constructions which firmly grips the top panel of the paperboard lid.

Classes IPC  ?

• B65D 55/06 - Fils métalliques, cordons ou bandes déformables ou déchirables (capuchons ou couvercles en forme de capuchons avec bandes de déchirure ) Utilisation de sceaux
• B29C 65/10 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage avec des gaz chauds
• B65D 43/10 - Couvercles ou chapeaux amovibles ayant un rebord périphérique s'ajustant au-dessus du bord du réceptacle et retenus par enclenchement sur des bourrelets ou saillies

Abrégé

Conventional adhesive and contact welding methods for holding the paperboard and plastic components of a composite closure together present a number disadvantages and do not lend themselves easily to mass production. The present invention describes two novel approaches, firstly the pre-assembly heating of the closure components with directed hot air to partially melt the thermoplastic surfaces and allow the parts to be immediately assembled sealingly and, secondly, a novel construction of plastic and paperboard composite closure in which the plastic rim is of a two-piece snap-fit constructions which firmly grips the top panel of the paperboard lid.

Classes IPC  ?

• B65D 55/06 - Fils métalliques, cordons ou bandes déformables ou déchirables (capuchons ou couvercles en forme de capuchons avec bandes de déchirure ) Utilisation de sceaux
• B65D 43/10 - Couvercles ou chapeaux amovibles ayant un rebord périphérique s'ajustant au-dessus du bord du réceptacle et retenus par enclenchement sur des bourrelets ou saillies
• B29C 65/10 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage avec des gaz chauds