A plastic cap for a container neck formed with upper and lower external locking beads has a top disk from which depends an upper outer skirt having an upper internal locking bead and a larger diameter lower skirt having a lower internal locking bead. Between the skirt sections is an outward extending flange which is weakened by a notch cut in its outer corner to form a circumferential line of weakness. When the cap is seated on the neck the upper and lower beads inter-engage, the cap cannot be removed without evidence of tampering. To fracture the flange at the line of weakness, in one form of the invention, a tear tab depends from the lower edge of the skirt and a curved score line at the upper end of the tear tab extends up from the lower edge of the skirt to the level of the line of weakness. Pulling the tab tears the skirt at the curved score line and around the line of weakness, removing all or a sufficient portion of the lower skirt and its lower internal locking bead. In another form of the invention, a tear tab connected to the lower skirt extends upward, displaced outward of the lower skirt and the latter is weakened in a substantially vertical score line extending up from the lower edge of the skirt to the line of weakness. By bending the tab outward the score line is broken and by pulling the tab around the cap, the lower skirt is torn off.
A closure of plastic material for monodose bottles and the like, provided with a reservoir (2) with a breakable bottom (3) housed in the neck (4) of the bottle (5) and showing an annular upper edge (6) superimposed to the annular edge (7) of the bottle opening; with a cylindrical element (8) with its lower end (9) sideways cut inserted into the reservoir (2) and including further a sealing cap (10) positioned around the bottle neck (4) and covering said cylindrical element (8), a weakening line apt to allow the tearing removal being provided in said cap.
A safety device for providing clues that a capped container has been opened a first time. Frictional male female joints releasably interconnect the cap to the container. This safety device is of the tear-off type, wherein by peeling one peripheral portion of the annular wall portion of the container cap, the cap can be released from the container mouth, while at least some frictional joints remain between the cap to enable continuous efficient interconnection capability regardless of the number of cap opening/closure cycles. The peeled cap strip is then disposed of--it is not reusable. Thus, its absence about cap signals that someone has already opened the cap to access the content of the container.
A neck finish on a wide mouth container to accept a tamper evident cap to provide multiple sealing surfaces therebetween. The neck finish having cooperating upper and lower locking ribs and grooves holding the cap in place until a majority portion of the cap is removed by tearing along a horizontal frangible line, disengaging one of the locking ribs from the neck finish. The neck finish provides multiple sealing surfaces in both vertical and horizontal alignment.
An improved tamper resistant bottle cap and neck for bottles which hold liquid. The bottle cap of the present invention includes a circular cover, a skirt depending from the periphery of the cover, and a tamper evidencing lower portion. A raised ring formed on the outer and upper surface of the bumper roll typically used in blow-molded containers protects the lower edge of the cap from tampering by making the lower edge of the ratchet ring in the case of a thread-on cap (or the lower edge of the removable portion of a skirt in the case of a push-on cap) less accessible to potential tamperers. Thread-on caps with helical threads and a ratchet ring, or push-on caps with skirts having removable lower portions, may each be equipped with an arched or curved pull tab. The pull tab in each instance is designed to accommodate a raised ring on the bumper roll of the neck of a blow-molded bottle. By designing the pull tab to accommodate the raised ring on the bumper roll the presence of the ring does not induce unwanted stresses and deformations into the pull tab or the skirt or ratchet ring to which the pull tab is connected.
A container assembly is provided including a cover and a container. The cover and container components are adapted to resist deformation resulting otherwise from forces encountered during handling and storage. Accordingly, the resulting container assembly can withstand side impact, stacking and internal pressure.
