Abstract: A package having child-resistant and non-child-resistant modes of operation includes a container having a neck finish with an open end, an external surface surrounding the open end and at least one external first engagement element spaced from the open end. A closure has a base portion, a skirt extending from the base portion, and at least one internal second engagement element on the skirt for engagement with the external first engagement element on the container neck finish in a child-resistant mode of operation. The skirt containing the second engagement element is severable from the base portion of the closure to convert the closure from a child-resistant mode of operation to a non-child-resistant mode of operation. A first annular element within the skirt is disposed for engagement with the external surface on the container neck finish to seal the package in the child-resistant mode of operation.

Abstract: A closure includes a skirt and internal lugs on the skirt. The skirt has an undulating circumferential contour that includes alternate outwardly convex and outwardly concave portions, with the internal lugs being disposed within the outwardly concave portions of the skirt. The skirt preferably is sufficiently flexible to allow the outwardly concave portions of the skirt to assume an outwardly convex geometry as a result of outward pressure on the internal lugs during demolding of the closure. The closure thus may be simply axially stripped from the mold core during the demolding operation without requiring movement of portions of the mold core to clear a path for travel of the lugs. The lugs preferably are shaped as an inverted U that opens toward a free edge of the skirt, further to facilitate demolding of the closure.

Abstract: A child-resistant package includes a container having an open mouth, a conical external surface around the open mouth that widens away from the mouth and a wall extending from the conical external surface. A closure has a base wall, and a peripheral skirt having a first portion adjacent to the base wall and a second portion removably connected to the first portion. An annular first wall extends from the base wall at a position radially inward from the skirt for spring/sealing engagement with the conical external surface of the container. A second wall extends from the base wall at a position radially inward from the first wall and, preferably, at an outward conical angle to the base wall. The second portion of the skirt and the wall on the container have interlocking elements that resist removal of the closure from the container in a child-resistant mode of operation absent a force against the first wall to disengage the interlocking elements.

Abstract: A package that has both child-resistant and non-child-resistant modes of operation. A container has an end with an open mouth surrounded by a container wall with a central axis and at least one first lock element extending radially outwardly from the wall. A closure includes an annular base wall having inner and outer peripheral edges. A cylindrical skirt extends from the outer peripheral edge of the base wall, and at least one second lock element is disposed on the skirt. A projection extends axially from the inner peripheral edge of the base wall in a direction opposite from the skirt. The projection has an annular sidewall spaced radially inwardly from the outer peripheral edge of the skirt.

Abstract: A closure having child-resistant and non-child-resistant modes of operation includes a plastic inner shell having a skirt with at least one internal thread, an external bead on the skirt and a circumferential array of teeth on the bead. A plastic outer shell has a skirt externally encircling the skirt of the inner shell. The outer shell has an internal bead on its skirt, a circumferential array of first teeth on one side of the internal bead, a circumferential array of second teeth on the other side of the internal bead, and at least one third engagement element adjacent to an edge of the skirt. The inner shell is positionable within the outer shell in child-resistant and non-child-resistant positions, in which the teeth on the inner skirt engage the first or second teeth on the outer shell.

Abstract: A tamper-indicating child-resistant package includes a container having a finish with an open mouth and an external circumferential bead spaced from the mouth. A closure has a skirt for externally encircling the container finish, a tamper band frangibly connected to the skirt for positioning beneath the external circumferential bead on the container finish, and a spring element for engaging the finish and biasing the closure away from the finish. The finish and the skirt have interlocking elements that resist removal of the closure from the finish absent force against the spring element to disengage the interlocking elements. Engagement of the tamper band with the external circumferential bead ruptures the frangible connection of the band to the skirt upon first removal of the closure from the container finish to indicate potential tampering with the package.

Abstract: A dispensing closure has an integral measuring device and spoon applicator. The closure has an internal thread on a skirt for fitting onto a container finish The closure has a tubular measuring device depending from the base wall within the radial confines of the skirt and ending at a spoon applicator for ease of oral administration.

Abstract: A package that has both child-resistant and non-child-resistant modes of operation. A container has an end with an open mouth surrounded by a container wall with a central axis and at least one first lock element extending radially outwardly from the wall. A closure includes an annular base wall having inner and outer peripheral edges. A cylindrical skirt extends from the outer peripheral edge of the base wall, and at least one second lock element is disposed on the skirt. A projection extends axially from the inner peripheral edge of the base wall in a direction opposite from the skirt. The projection has an annular sidewall spaced radially inwardly from the outer peripheral edge of the skirt.

Abstract: A closure includes a one-piece integrally molded plastic shell having a shell portion that is engageable with a container such that said closure is adapted to function in cooperation with the container in a first predetermined mode of operation, such as a child-resistant mode of operation. The shell portion is selectively removable by a user such that the closure is then adapted to function in cooperation with the container in a second predetermined mode of operation different from said first mode of operation, such as a non-child-resistant mode of operation.

Abstract: An injection molding apparatus (10, 110) for molding an annular thermoplastic element, such as an annular closure element (E) with no more than a single weldline in the annular extent of the thermoplastic element. The thermoplastic element is molded in an annular mold cavity (12, 112), and moldable thermoplastic material (M) is introduced into the mold cavity from a coaxially-aligned annular flow path (18, 118) that is defined between a sliding sleeve (24, 124) and an annular member (22, 122). The sliding sleeve surrounds and is slideable with respect to a fixed pin (26, 126) and is slideable between a first, or forward, position, where no thermoplastic material can flow into the mold cavity, and a second, or rearward, position, where thermoplastic material can flow into the mold cavity.