PT closing device for containers
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United States of America Patent
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May 24, 2011
Grant Date -
May 8, 2008
app pub date -
Jul 29, 2005
filing date -
Jul 30, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention is directed to a closing device for a closure lid made of sheet metal suitable for opening by twisting, as well as a support device on or for such closure lid, as well as the closure lid itself and a process of making such closure lid. The closing device includes a lid panel; a skirt portion on an edge of the lid panel; a seal extending from a circumferential section of the lid panel into the skirt portion. In addition, the closing device has a non-metallic safety ring that includes two circumferentially extending sections, configured as a safety section with a strip section, shaped to project radially inwards and axially upwards, as well as a connecting section for attaching the safety section on an axially lower end of the skirt portion. The skirt portion has a lower end rolled up from radial outside to radial inside by more than 180° to form a roll-up portion, the roll-up portion being at least partly clasped, or is claspable, by the connecting section from an inner side of the skirt portion.
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