Metal Box Corporation

Andrzej J Juty

Stephen F Kelsey

Combined can end and pull tab closure

Pull tab closure for a can

A plastics closure for a can end of the kind having a pouring aperture and a venting aperture comprises a first connecting member which connects a vent plug and a pouring aperture plug and is extended to form a pull tab acting directly on the vent plug. The plugs are rupturably sealed over the respective apertures of collar portions connected by a second connecting member and fitting in the venting aperture and the pouring aperture. Flexible tie means extend from the pouring aperture plug to flexible hinges joined to the venting aperture collar. When the pull tab is lifted the vent plug is torn away from the venting aperture collar to achieve dry venting before the pouring aperture plug is torn away to complete opening for pouring. The plugs are retained captive by the tie means for reclosure of the apertures.

Closure for a container having vent and tethered means

A tear open plastics closure for a can end having a pouring aperture and a venting aperture comprises respective annular collar portions fitting in an airtight manner in the apertures and plugs rupturably sealed over the mouths of the collars and capable of being forced back into the collars to re-seal the apertures, the plugs being connected together by a connecting member which is flexibly connected (e.g. by a step piece and a yoke) to one of the collar portions. The connections between each collar portion and the other parts of the closure ensure that the collar portions can tilt and move laterally relative to one another. For example, the collar portions may have no direct connection with one another but be attached solely to the plugs and by the flexible connection of one collar portion to the connecting member. Alternatively they may be connected by a narrow flexible bridge.

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Harrow, United Kingdom

Andrzej J Juty