초록 ▼

A thin flat disc has a coplanar member or tab disposed therein. The tab has a straight edge integral with the remainder of the disc which constitutes a portion of the tab periphery. The remaining portion of the periphery is scored and defines a border. A horizontally elongated bar is integral with t

A thin flat disc has a coplanar member or tab disposed therein. The tab has a straight edge integral with the remainder of the disc which constitutes a portion of the tab periphery. The remaining portion of the periphery is scored and defines a border. A horizontally elongated bar is integral with the tab. The bar lies in an essentially vertical plane, extends upward from the disc for a short distance and is essentially parallel to the straight edge.

대표청구항 ▼

1. A disc adapted to be placed in sealing engagement with the open top of a container and comprising: a thin flat disc having a member disposed therein, said member being coplanar with the disc and constituting a tab, said tab having as a portion of its periphery a straight edge integral with the

1. A disc adapted to be placed in sealing engagement with the open top of a container and comprising: a thin flat disc having a member disposed therein, said member being coplanar with the disc and constituting a tab, said tab having as a portion of its periphery a straight edge integral with the remainder of the disc, the remaining portion of said periphery being scored and defining a border; and a horizontally elongated straight bar lying in an essentially vertical plane and being essentially parallel to said edge, said bar being integral with said tab and extending upward for a short distance, said bar after said scoring is broken being adapted to be moved into an essentailly horizontal plane in a position adjacent but below the disc with the tab projecting downwardly therefrom whereby an opening is formed in said disc, and is spanned by said bar, the length of said bar having such relation to said opening that each end of the bar extends beyond said opening to underlie the disc and lock the bar in said position whereby said tab is also locked in position. 2. The disc of claim 1 wherein said member is elongated, said straight edge defining one side of the member, said member having an opposite side being scored and inwardly curved, each end of the straight side being connected by a corresponding scored line to an adjacent end of the curved side. 3. The disc of claim 2 wherein said member has a raised flattened region having a generally circular periphery, a portion of said circular periphery being coincident with said curved side. 4. The disc of claim 1 wherein said bar is disposed adjacent said straight edge. 5. The disc of claim 1 wherein the included angle between said bar and said disc is slightly less than 90°. 6. The disc of claim 3 further including a straight horizontally elongated raised rib extending between said flattened region and said bar. 7. The disc of claim 6 wherein said disc has a raised peripheral lip adapted to be secured to the open top peripheral edge of said container.