Hermetic seal and wide-mouthed bottle sealed by the seal
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United States of America Patent
Stats
-
Dec 26, 2000
Grant Date -
N/A
app pub date -
May 11, 1999
filing date -
Jul 11, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hermetic seal for sealing a mouth of a wide-mouthed bottle having a body portion thinly formed by stretch blow molding, and a wide-mouthed bottle a mouth of which is sealed by the hermetic seal. A synthetic resin laminated sheet comprising an aluminum sheet or an aluminum foil as a base is punched into the same shape as a mouth of the wide-mouthed bottle to form the hermetic seal. The sheet is formed into a flat peripheral portion and a bellows inside the flat portion to have alternate multiple mountain and valley portions by press molding concurrently with the punching. The bellows is formed in a concentrical state or in a spiral state to prevent the deformation of the body portion caused by a reduced pressure inside the bottle resulting from cooling
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Cited Art Landscape
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