Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A tamper-resistant, tamper-evident composite lid is disclosed for use with containers having a peripheral lip formation around the opening thereof, such as an ice cream container. The closure member comprises integral outer and inner cylindrical ring portions which present at their upper peripheral margin a downwardly stepped annular ledge formation for adhesively receiving a paperboard or other flexible cover panel. The inner ring portion presents a plurality of resiliently deformable teeth extending upwardly and inwardly from its lower peripheral margin configured to lockingly engage with the lip of the container for sealing. The inner ring is circumscribed by a rupturable line of weakness which ruptures upon any attempt to prise off the lid, providing evidence of tampering. The container is legitimately opened by manually tearing away the bottom portion of the inner ring along its line of weakness.

Abstract: A one piece molded push-on tamper resistant closure suited for reusable bottles such as milk bottles comprises a cap portion and a latch ring portion connected thereto by frangible tabs. Ruptures of the tabs serves to detach the cap portion to permit its removal from the bottle, while simultaneously opening the latch ring portion to permit it to be removed laterally from the neck of the bottle. The closure includes a latch ring removal tab disposed on the latch ring portion to provide a levered force for rupturing the frangible tabs.

Abstract: A one piece molded push on tamper resistant closure suited for reusable bottles such as rnilk bottles comprises a cap portion and a latch ring portion connected thereto by frangible tabs. Rupture of the tabs serves to detach the cap portion to permit its removal from the bottle, while simultaneously opening the latch ring portion to permit it to be removed laterally from about the neck of the bottle. The closure may also include a pull tab disposed on the cap portion to provide a levered fore for rupturing the frangible tabs.

Abstract: A sealing member for a container has a membrane, e.g., aluminum foil, and a first sheet, e.g. polyester, part of which is bonded to the membrane. The other part of the sheet is free, so as to form a tab having one of a number of possible profiles, to enable the sealing member to be detached as a single unit. At least part of the periphery of the tab is within the periphery of the membrane, to facilitate grasping of the tab. The first sheet and the membrane or foil may have a common periphery where they are bonded together.

Abstract: A sealing member for a container has a membrane, e.g. aluminum foil, and a first sheet, e.g. polyester, part of which is bonded to the membrane. The other part of the sheet is free, so as to form a tab, to enable the seal to be detached. The seal can be attached to the neck of a bottle by a hot melt adhesive. The sheet and membrane can be stamped from a compound sheet and be of the same size. The composite portion can extend up to a line extending across a major portion of the membrane, or in another embodiment it covers a major portion of the membrane. Alternatively, the first sheet and the membrane can have a substantially common periphery in the separated portion of the sealing member forming the tab. A further embodiment provides for a sealing member that is entirely planar.

Abstract: A method of making an elongate strip for the production of a sealing member includes, as a first step, applying a plurality of strips of a first adhesive to one of a membrane and a first sheet, the membrane and the first sheet are then bonded together so that composite portions are formed where they are bonded together by the strips of the first adhesive, and separated portions are formed where the membrane and the first sheet are free from one another. The other side of the membrane is then coated with an additional layer of adhesive, for example a hot melt bonding material. Then, sealing members can be cut from the resultant composite elongate strip, with each sealing member having a composite portion in which the membrane and the first sheet are bonded together and a separated portion in which the membrane and the first sheet are free of one another. The free portion of the first sheet then forms a tab, for removal of the sealing member, in use, after it has been bonded to the lip of a container.

Abstract: An elongate strip, from which sealing members can be cut, has an elongate membrane and a first sheet. A first layer of adhesive is provided in the form of a series of elongate portions extending along the length of the strip and bonding the membrane and the first sheet together. An additional layer of adhesive is provided on the other side of the membrane. This enables sealing members to be cut from the elongate strip comprising a composite portion in which the membrane and first sheet are bonded together by the first layer of adhesive and a free portion in which the first sheet is separate from the membrane and forms a tab. In use, the additional layer of adhesive on the membrane is used to bond the sealing member to lip of a container, and the tab can then be used to remove the sealing member to open the container. The first layer of adhesive bonds the first sheet of the membrane together so strongly in the sealing member that they can be removed as a unit from such a container.

Abstract: A sealing member for a container has a membrane, e.g. aluminum foil, and a first sheet, e.g. polyester, part of which is bonded to the membrane. The other part of the sheet is free, so as to form a tab, to enable the seal to be detached. The seal can be attached to the neck of a bottle by a hot melt adhesive. The sheet and membrane can be stamped from a compound sheet and be of the same size.