End closure with anti-rotation tab
AssigneeRexam Beverage Can Company
InventorMichel Thibaut
Life of this patent
Estimating the term…
Abstract
An end closure for a container providing a tab with increased resistance to rotation upon a rivet is disclosed. The end closure has a central panel wall having a product side, a public side, a rivet, and a displaceable tear panel in the central panel wall at least substantially defined by a frangible score and a non-frangible hinge segment. A tab is attached to the public side of the central panel wall by the rivet. At least a nose portion of the tab extends over a portion of the tear panel. A lift end of the tab is opposite the tab nose. The tab has a central webbing between the nose and the lift end. The central webbing has an anti-rotation member in communication with the public side of the central panel wall. The anti-rotation member provides a spring force against the central panel wall.
Claims27
An end closure for a container including a central panel wall having a product side, a public side, a rivet, and a displaceable tear panel in said central panel wall at least substantially defined by a frangible score and a non-frangible hinge segment, comprising:
- a tab being attached to the public side of the central panel wall by the rivet, at least a nose portion of said tab extending over a portion of the tear panel, a lift end of said tab being opposite said tab nose;
- a central webbing of said tab between said nose and said lift end, said central webbing having a downwardly extending anti-rotation member in communication with the public side of the central panel wall;
- and
- a spring force provided by said anti-rotation member against the central panel wall for increasing a torque required to rotate said tab, the spring force caused by an upward deflection of a portion of the central webbing caused by communication of the anti-rotation member with the central panel.
An end closure for a container including a central panel wall having a product side, a public side, a rivet, and a displaceable tear panel in said central panel wall at least substantially defined by a frangible score and a non-frangible hinge segment, comprising:
- a tab being attached to the public side of the central panel wall by the rivet, at least a nose portion of said tab extending over a portion of the tear panel, a lift end of said tab being opposite said tab nose;
- a central webbing of said tab between said nose and said lift end, said central webbing having an anti-rotation member extending downwardly relative to the public side of the central panel wall, said anti-rotation member having a linear edge portion in communication with the central panel wall.
Dependencies are inferred from the claim text.