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US 4,544,079 AGranted
Opener structure for a container
AssigneesEdwin Elrick, David L. Lockhart, Alfred Hunt
InventorEdwin Elrick
Life of this patent
Estimating the term…
Abstract
An opener structure for a container includes a slidable plate juxtaposed against an external wall of the container. Retainer devices such as rivets retain the plate against the wall but permit relative sliding between the wall and the plate. A resilient punch supported from the plate rests on a shelf defined by the wall. A region of weakness lies adjacent the shelf so that if the plate slides away from the shelf, the punch will pierce the line of weakness and rupture it. A lever is provided to cause the plate to slide away from the shelf.
Claims8
In combination:
- a container body including a wall intended to be opened,
- a slidable plate juxtaposed against said wall externally of the container body,
- retention means retaining said plate against said wall while permitting relative sliding between them,
- a resilient punch supported by the plate and having a piercing edge biased toward the wall, the punch resting on a shelf-like portion of the wall in biased condition, the wall having a region of weakness adjacent the said shelf-like portion such that if the plate slides away from the shelf-like portion thus drawing the punch off the portion, the piercing edge of the punch can strike the region of weakness and rupture the same,
- and means for causing the plate to slide away from said shelf-like portion.
2 more elements
Dependencies are inferred from the claim text.