Child resistant package
DCFirst Claim
1. A child resistant package comprisinga plastic container having an open end,thread means on the external surface of the container adjacent the open end for securing a closure,a plastic closure having a base wall and a peripheral skirt,said skirt having an inner surface formed with thread means for engaging the thread means on the container and at least one axially locking lug thereon,a deflectable release element formed integrally on the exterior surface of the container,means for mounting said release element on said container for radial and axial movement relative to said container,an integral axially deflectable lug mounted on said release element and extending upwardly toward the open end of the container, said lug being deflectable relative to said deflectable release element,said axially deflectable lug on said release element normally extending upwardly for engagement with said locking lug such that when the release element is pressed radially inwardly and axially downwardly, the deflectable lug is disengaged from engagement with the locking lug and the closure can be removed by unthreading the closure from the container, andsuch that when the closure is applied to the container the locking lug on said closure deflects the deflectable lug downwardly relative to said release element past said locking lug.
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Abstract
A child resistant package which includes a container having an open end and single or multiple threads on the external surface of the container adjacent the upper end. A closure having a base wall and a peripheral skirt has an inner surface formed with single or multiple threads corresponding in number to the multiple threads on the container for engaging the threads on the container. A deflectable release element is formed integrally on the container. The release element includes an integral axially deflectable lug extending upwardly toward the open end of the container. The closure has at least one locking lug on the skirt of the closure, the number of locking lugs preferably corresponding to the number of threads on the container and closure. The deflectable lug on the deflectable release element normally extends upwardly for engagement with the locking lug such that when the release element is pressed radially inwardly, the lug is disengaged from engagement with a locking lug and the closure can be removed by unthreading the closure from the container. When the closure is reapplied minimal torque is required due to the axial deflection of the lug and one of the stops on the closure moves past the lug. In a preferred form of the child resistant package, the deflectable release element and container include interengaging stops to limit the deflection on the release element.
102 Citations
44 Claims
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1. A child resistant package comprising
a plastic container having an open end, thread means on the external surface of the container adjacent the open end for securing a closure, a plastic closure having a base wall and a peripheral skirt, said skirt having an inner surface formed with thread means for engaging the thread means on the container and at least one axially locking lug thereon, a deflectable release element formed integrally on the exterior surface of the container, means for mounting said release element on said container for radial and axial movement relative to said container, an integral axially deflectable lug mounted on said release element and extending upwardly toward the open end of the container, said lug being deflectable relative to said deflectable release element, said axially deflectable lug on said release element normally extending upwardly for engagement with said locking lug such that when the release element is pressed radially inwardly and axially downwardly, the deflectable lug is disengaged from engagement with the locking lug and the closure can be removed by unthreading the closure from the container, and such that when the closure is applied to the container the locking lug on said closure deflects the deflectable lug downwardly relative to said release element past said locking lug.
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25. A plastic container for use in a child resistant package including a plastic closure having a base wall and a peripheral skirt with threads on said skirt and a locking lug on said skirt,
said plastic container having an open end, thread means for securing a closure on the external surface of the container adjacent the upper end, a deflectable release element formed integrally on the exterior surface of the container, means for mounting said release element on said container for radial and axial movement relative to said container, an integral axially deflectable lug mounted on said release element and extending upwardly toward the open end of the container, with said lug being deflectable relative to said deflectable release element, said axially deflectable lug on said release element normally extending upwardly for engagement with a locking lug on a closure such that when the release element is pressed radially inwardly and axially downwardly, the deflectable lug is disengaged from engagement with the locking lug and the closure can be removed by unthreading the closure from the container, and such that when the closure is applied to the container the locking lug on the closure deflects the deflectable lug on the release element downwardly relative to said release element past said locking lug.
Specification