Closure and container package with child-resistant and non-child-resistant modes of operation

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. The closure is adapted to be secured to the container in a child-resistant mode of operation with the second lock element on the skirt releasably engaged with the first lock element on the container wall, and with the inner peripheral edge of the base wall in resilient engagement with the outer surface of the container wall to bias the lock elements in engagement with each other and to seal the package. The closure is adapted to be inverted and secured to the container in a non-child-resistant mode of operation with the annular sidewall of the projection received in plug-sealing engagement within the container mouth.

Description

[0001] Reference is made to U.S. application Ser. Nos. 10 / 388,293, 10 / 386,192 and 10 / 378,441 assigned to the assignee of the present application.[0002] The present invention relates to child-resistant closure and container packages, such as prescription packages for example, to closures and containers for such packages, and to methods of making such packages. BACKGROUND AND SUMMARY OF THE INVENTION [0003] U.S. Pat. Nos. 4,057,159, 4,059,198 and 4,485,932 disclose child-resistant closure and container prescription packages that include a container or vial, a closure, and a spring / seal disk arrangement disposed between the closure and the container. The closure has lugs on an inside surface of a skirt that cooperate with external locking notches or pockets on projections around the mouth of the container for securing the closure to the container. An internal abutment on the closure cooperates with the spring / seal disk(s) to urge the closure away from the container so that the lugs are...

AI Technical Summary

Benefits of technology

[0007] A child-resistant package in accordance with a first aspect of the present invention includes a container having a wall surrounding an open mouth, a plurality of external projections extending radially outwardly from the container wall at positions spaced from the mouth, notches on undersides of the projections, and an external surface on the container wall that slopes radially inwardly and axially upwardly between the projections and the mouth. A closure has an annular base wall with an internal peripheral edge, an external a peripheral skirt and a plurality of internal lugs on the skirt. The internal peripheral edge of the base wall is engagable with the sloping external wall surface of the container between the projections and the mouth for both sealing the package and resiliently urging the closure lugs into the notches of the projections. The holding forces can be supplied by resilient flexure of the closure or the container, or both. A two-piece package in accordance with this aspect of the invention thus eliminates any need for additional spring / seal disk elements in the assembly.

Problems solved by technology

For example, it can be difficult for adults with impaired dexterity to push and twist the closure with respect to the container to open the package for access to the contents.

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