Self-adjusting re-sealable spring center seal closure

Details Self-adjusting re-sealable spring center seal closure Self-adjusting re-sealable spring center seal closure

B - Operations, Transporting

65

D

B65D 17/40 (2006.01) B65D 43/02 (2006.01)

Patent

CA 2506602

A leak-resistant plastic container and closure are disclosed, where the container has an open end, an inner periphery, an outer periphery, and a container flange extending around the inner periphery at the open end. The closure has a generally planar and circular inner lid, a spring extending around an outer circumference of the inner lid, an arcuate flange receptacle extending around an outer circumference of the closure at a circumference outside the spring, where the flange receptacle has an inner surface and an outer surface, a secondary sealing bead, positioned on the inner surface of the flange receptacle, and a primary sealing bead, positioned on an outer surface of the flange receptacle and opposite the secondary sealing bead, where the spring exerts a sealing pressure against the container flange when the closure is placed on the open end of the container.

Cette invention se rapporte à un récipient et à une fermeture en plastique résistant aux fuites, ledit récipient comprenant une extrémité ouverte, un pourtour interne, un pourtour externe et une bride s'étendant sur le pourtour interne au niveau de l'extrémité ouverte. La fermeture comporte un couvercle interne généralement plat et circulaire, un ressort s'étendant sur le pourtour externe du couvercle interne, un logement à bride courbe s'étendant sur le pourtour externe de la fermeture au niveau d'un pourtour extérieur au ressort. Le logement à bride comporte une surface interne et une surface externe, un cordon d'étanchéité secondaire, situé sur la surface interne du logement à bride, et un cordon d'étanchéité primaire, situé sur la surface externe du logement a bride, à l'opposé du cordon d'étanchéité secondaire. Le ressort exerce une pression d'étanchéité contre la bride du récipient, lorsque ladite fermeture est placée sur l'extrémité ouverte du récipient.

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