JAR LID HAVING VISIBLE BREAKAGE SECTION Russian patent published in 2009 - IPC B65D43/02 

FIELD: household goods and personal effects; packaging materials.

SUBSTANCE: plastic jar lid contains a tubular body having an upper and a lower ends and connected to the upper o-ring wall forming the lid pressure-tight fitting socket via a double seam. Additionally the lid contains a detachable sealant element fixedly fitted into the socket. The sealant element outer edge projects radially outside the socket. The sealant element contains a visible breakage section whose lower skirt partly enclosing the tubular body upper end is strap-connected to the sealant element outer edge. The visible breakage section has a discontinuity stretching along at least part of the lower skirt height. The sealant section has a grip tongue on its outer edge passed through the visible breakage section discontinuity. The straps are arranged axially around the tubular body upper end periphery and serve to connect the lower skirt upper edge to the sealant element outer edge at points mutually spaced at a certain angle. The straps become destroyed when a certain pull force is applied to the them at the lid initial opening. The grip tongue is aligned with respect to the lower skirt with a clearance maintained between them. The strap that stretches circumferentially through the visible breakage section discontinuity and along the grip tongue has its ends integrated in the lower skirt.

EFFECT: innovative design of a plastic lid capable of repeated usage ensuring tight closure of the container with the help of a reliable sealant element enabling immediate visual observation of breakage and equipped with a grip tongue facilitating opening.

7 cl, 6 dwg