Abstract: A cap includes a top wall, an outer peripheral edge, a first section, and a second section. A skirt depends from the outer peripheral edge. The skirt includes an attached end, a free end, a plurality of slots, and a plurality of apertures. Each aperture is spaced-apart from the free end of the skirt. The top wall has a first configuration and a second configuration. When the top wall is in the first configuration, the first section is generally planer and the second section is generally arcuate. When the top wall is in the first configuration, the skirt extends generally perpendicularly to the first section to generally engage at least a portion of a container. When the top wall is in the second configuration, the free end of the skirt extends radially outwardly from the attached end thereof to allow the cap to be removed from the container.

Abstract: A cap includes a top wall, an outer peripheral edge, a first section, and a second section. A skirt depends from the outer peripheral edge. The skirt includes an attached end, a free end, a plurality of slots, and a plurality of apertures. Each aperture is spaced-apart from the free end of the skirt. The top wall has a first configuration and a second configuration. When the top wall is in the first configuration, the first section is generally planer and the second section is generally arcuate. When the top wall is in the first configuration, the skirt extends generally perpendicularly to the first section to generally engage at least a portion of a container. When the top wall is in the second configuration, the free end of the skirt extends radially outwardly from the attached end thereof to allow the cap to be removed from the container.

Abstract: A cap includes a top wall, an outer peripheral edge, a first section, and a second section. A skirt depends from the outer peripheral edge. The skirt includes an attached end, a free end, a plurality of slots, and a plurality of apertures. Each aperture is spaced-apart from the free end of the skirt. The top wall has a first configuration and a second configuration. When the top wall is in the first configuration, the first section is generally planer and the second section is generally arcuate. When the top wall is in the first configuration, the skirt extends generally perpendicularly to the first section to generally engage at least a portion of a container. When the top wall is in the second configuration, the free end of the skirt extends radially outwardly from the attached end thereof to allow the cap to be removed from the container.

Abstract: A closure includes a cup shaped overcap having a depending sidewall. The sidewall is provided with a lug having a plurality of inwardly facing teeth. Each one of the inwardly facing teeth has a gently sloping face and steeply sloping face. The slopes of the gently sloping faces and the steeply sloping faces of at least two of the inwardly facing teeth differ respectively one from another. The closure also includes a cup shaped undercap having a depending sidewall. The sidewall is provided with a plurality of outwardly facing teeth around its periphery. Each one of the teeth has a steeply sloping face and a gently sloping face. The steeply sloping faces and the gently sloping faces of the outwardly facing teeth are adapted to abut respectively, at least two of the steeply sloping faces and the gently sloping faces of the inwardly facing teeth.

Abstract: A closure includes a cup shaped overcap having a depending sidewall. The sidewall is provided with a lug having a plurality of inwardly facing teeth. Each one of the inwardly facing teeth has a gently sloping face and steeply sloping face. The slopes of the gently sloping faces and the steeply sloping faces of at least two of the inwardly facing teeth differ respectively one from another. The closure also includes a cup shaped undercap having a depending sidewall. The sidewall is provided with a plurality of outwardly facing teeth around its periphery. Each one of the teeth has a steeply sloping face and a gently sloping face. The steeply sloping faces and the gently sloping faces of the outwardly facing teeth are adapted to abut respectively, at least two of the steeply sloping faces and the gently sloping faces of the inwardly facing teeth.