Abstract: A threaded closure for a liquid container including tamper-indicating means, having a floating liner which permits the breaking of the tamper-indicating means before the seal formed by the liner is broken. The liner includes a side-seal which extends downwardly from a transversely extending main wall. The side wall of the closure includes a deformable pressure block which distorts radially inwardly when engaged by the uppermost thread surrounding the mouth of the container to engage the side wall and press it against an outer surface of the neck of the container.

Abstract: A threaded closure for containers having a tamper indicating ring frangibly interconnected to a lower edge of a side wall of the closure. The ring includes tabs engaging a bead on the neck of the container in which the tab extends axially above the frangible parting line interconnecting the ring and the side wall of the closure prior to the first removal of the closure from the neck of the container. The tabs include an inwardly directed rib or projection forming a shoulder or notch which engages the edge of the closure bead, when the closure is first removed.

Abstract: An improved threadedly engageable container closure having a frangibly interconnected tamper-indicating ring, in which the tamper-indicating ring includes a relatively thin upper portion and a relatively thicker lower portion defining a circular recess of rectangular configuration. The tabs are interconnected to an inner upper edge of the lower portion of the tamper-indicating ring by an area of cross section sufficiently thin as to impart elastic memory between the lower portion of the tamper-indicating ring and the upper portion. When the closure is installed, the tabs pivot to operative position, and remain so as the closure is installed, the relatively thinner upper portion of the ring expanding uniformly through contact of the outwardly-directed surfaces of the tab against the inner surface of the upper portion of the closure ring.

Abstract: A locking tab construction for tamper-indicating rings on threaded closures for containers used for soft drinks and the like. The tabs are pivoted at a lower edge of the tamper ring, and are maintained in axial orientation by resilient engagement within corresponding recesses in an inner surface of the lower part of the tamper ring.

Abstract: A clip permits a bottle-type container to be modified without requiring any reconfiguration of the basic bottle, eliminating both the need for an after market purchase and also the inconvenience of keeping track of the clip independently of the bottle. The cap or closure design includes an integrated clip in the cap. The cap is designed to fit on standard bottle constructions. The clip may be either an integrated feature of a reconfigured cap or may be an add-on adapted to be secured to an existing cap. Alternatively, the integrated clip is part of the cap mold or an add-on clip is frictionally mounted, sonic-welded or otherwise glued or secured to an existing cap design. The bottle container is not altered and may be manufactured, filled, labeled and process using existing equipment. The cap is then secured to the bottle with the integral clip, or the clip can be added as a downstream step after the bottle is closed and sealed.

Abstract: A method of scoring a tamper-indicating synthetic resinous threaded closure of a type in which the tamper-indicating ring remains attached to a cap element after unthreading the closure from a container. A novel horizontal cutting blade includes a cutting edge having recessed areas to form non-frangible bridges between the cap and the tamper-indicating ring. The cutting blade may include a notch-forming portion positioned adjacent the end of a cutting area to provide a point for initial tearing of the split in the ring to facilitate rupturing along a vertical axis. In a second embodiment, vertical scoring of the tamper-indicating ring is spaced such that the ring will split to form at least one non-frangible bridge interconnecting the ring with the cap element of the closure, without the need of axially-orienting the cap relative to a vertical scoring means. Also disclosed is a novel horizontal scoring blade which includes recessed areas on the scoring edge thereof for forming non-frangible bridge areas.

Abstract: A threaded closure for pressurized containers, typically for carbonated beverages is disclosed. The closure includes a deformable liner of non-vinyl polymer which is cold formed in the closure using known techniques in such manner that the liner physically bonds to the inner surface of the end wall of the closure to be retained thereby in the absence of a peripheral lip or projections on the inner surface of the end wall of the closure. The closure itself may be either injection molded or compression molded. The usual tamper indicating ring is formed to include frangible bridge members either by molding or a separate slitting operation. The pivotally mounted tabs for separating the tamper-indicating ring are sufficiently rigid to avoid flexing at points other than at an outer edge hinge axis where pivoting is possible only to a limited degree, thus assuring the severing of the frangible bridge members at an early stage of opening of the closure.

Abstract: A threaded type tamper-indicating closure in which the tamper-indicating ring is separated from the cap element of the closure as the closure is opened, the tamper-indicating ring includes an upper wall member of relatively reduced thickness to enable both bending and flexing radially outwardly during installation to enable relatively rigid tabs to clear a radially outwardly extending bead on the container neck or finish. The tabs extend radially inwardly from an upper edge of a relatively thicker lower wall member of the tamper-indicating ring, and do not substantially bend or flex relative to the lower wall member during either installation or removal.

Abstract: A threaded type tamper-indicating closure in which the tamper-indicating ring is separated from the cap element of the closure as the closure is opened, in which the tabs which contact an undersurface of a bead on the outer surface of an engaged container finish are prevented from flexing radially inwardly beyond a limited degree so as to assure that the tabs will function immediately as the closure commences unthreading. In some of the disclosed embodiments, this is accomplished by positioned the pivot axis of the tabs either radially inwardly of the inner edge of the tabs when they are in relatively unstressed condition, or in a common vertical plane therewith, so that the tabs pivot radially outwardly as they come into contact with the bead. In other embodiments, the tabs are of sufficient axial length that they contact the outer surface of the container finish before substantial pivoting occurs.

Abstract: A threaded type tamper-indicating closure in which the tamper-indicating ring is separated from the cap element of the closure as the closure is opened, in which the tabs which contact an undersurface of a bead on the outer surface of an engaged container finish are prevented from flexing radially inwardly beyond a limited degree so as to assure that the tabs will function immediately as the closure commences unthreading. In the disclosed embodiment, this is accomplished by positioning the pivot axis of the tabs in substantially a common vertical plane therewith, so that the tabs pivot only slightly radially outwardly as they come into contact with the bead. The tamper-indicating ring includes an upper wall member of relatively reduced thickness to enable both bending and flexing radially outwardly during installation to enable the relatively rigid tabs to clear a radially outwardly extending bead on the container neck or finish.

Abstract: An improved tamper-indicating ring construction for threaded closures in which the closure and tamper indicating ring are provided with mating camming surfaces which are brought into contact when the closure is unthreaded from a container finish. The angle of the camming surfaces with respect to principal axis of the closure is substantially greater than the lead on the threads of the closure, so that when the closure is rotated to open the container, the camming surfaces push the tamper indicating ring downwardly to break the interconnecting bridges which link the ring and the upper part of the closure. The bridge members are positioned upon the camming surfaces and are oriented almost transversely to said principal axis, so as to be broken by shear rather than tensional stresses, this permitting the use of relatively stronger bridge members with the assurance that they will be broken with relatively little effort on the part of the user.

Abstract: An improved tamper proof ring closure construction for use with threaded bottle finishes normally used for containing carbonated beverages or other contents which are under pressure. The ring includes hingedly connected hook-like members integrally molded to the inner surface of the ring. The ring includes an inwardly directed lower flange which supports the hook-like members against movement past a predetermined point when the closure is unthreaded. As the closure is unthreaded, the usual frangible bridge is at least partially ruptured, and continued pressure of the hook-like pressure upon the inwardly directed flange results in rupture of the body of the ring, so that it may be completely removed, thereby facilitating recycling of the container.

Abstract: A plastic closure for a container, such as a bottle having an externally threaded neck, has a top wall, an internally threaded sidewall, and a seal comprising outer and inner concentric sealing members that extend downwardly from an inner surface of the top wall. The outer sealing member extends downwardly farther than the inner sealing member and is substantially thicker than the inner sealing member. The outer sealing member is disposed to engage an outer corner of the rim of the neck of the bottle when the closure is threaded onto the bottle, and the inner sealing member is disposed to engage the top of the rim after engagement of the corner with the outer sealing member. The outer sealing member deflects outward slightly, and the inner sealing member deflects upwardly and inwardly.

Abstract: Plastic closures for beverage bottles and containers for motor oil, food, pharmaceuticals, industrial products and the like have a tamper-resistant band connected to the sidewall of the closure by internal bridges that are formed by notches in the thread core of molding apparatus of the type having mold parts, including a stripper ring, that move axially to release closures. Stretching, elongation, and weakening of bridges when the closure is stripped from the mold are avoided, and desired configuration of the bridges is maintained, with improved quality and uniformity and more consistent proper performance of the closure during application to and removal from a bottle. In a modification, a small number of relatively strong bridges is added to prevent drooping of the tamper-resistant band if some of the predominant bridges break inadvertently before removal of the closure from a bottle, for example.

Abstract: A linerless plastic closure has an integral frusto-conical sealing ring that seals with the rim of the neck of a container when the closure is applied thereto. The sealing ring has a hinge portion at an upper end thereof with a wall thickness that is small relative to that of an adjacent portion of the sealing ring, and has a preformed internal circumferential bead positioned to engage the rim at or near its top inner region. As the closure is applied to the container, the outer portion of the sealing ring first engages the rim, and the sealing ring is easily deformed by virtue of the hinge portion. After the bead seats on the rim, the sealing ring is stretched outwardly completely over the rim, with the bead serving to resist stretching from the hinge portion.