Retortable closure for plastic container

Fermeture pasteurisable pour récipient en matière plastique

Sterilisierbarer Verschluss für Kunststoffbehälter


There is disclosed a closure which permits the opening of a membrane sealed nutritional or pharmaceutical product container in a single action motion which also maintains a hermetic seal under retort conditions. This closure includes a generally cylindrical side wall (25) having threads along the inner surface thereof and retaining means for cooperative engagement with the lip (24) of a plastic container, and a top (30) having an annular rim portion (31) and a center portion (32), with the top having a lower surface attached to a heat-sealable barrier able to be secured to the plastic container, with the top also having a center portion removal means (40). A method is also disclosed for providing a hermetic seal on plastic containers using the closure and plastic container of this invention.




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Patent Citations (3)

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    EP-0047854-A1March 24, 1982ALUCAPS ITALIANA S.p.A.Procédé pour la fabrication des fermetures à vis extra-longues
    GB-1377767-ADecember 18, 1974Owens Illinois IncBottle closures
    US-3905503-ASeptember 16, 1975Ermal C FrazeContainer closure having easy-opening means

NO-Patent Citations (0)


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    FR-2986782-A1August 16, 2013Raymond A & CieDispositif de verrouillage de bouchon sur recipient a collerette, recipient a collerette obture par bouchon pourvu d'un tel dispositif de verrouillage
    RU-2576234-C2February 27, 2016А. Раймон Э СиеLocking device for fixing cork
    WO-2013120739-A1August 22, 2013A. Raymond Et CieDispositif de verrouillage de bouchon