Closure having a wrap-around seal

A plastic closure for use with a container having a neck with an annular lip at an uppermost end of the neck defining a mouth having a land surface, said closure comprising:

• a top panel, an annular skin depending peripherally from said top panel and means for releasably engaging said neck of said container;
• an inner retaining area defined by an inner ceiling surface of said top panel and an inner surface of said annular skirt, said retaining area receiving a pliant, oversized heat induction actuated closure liner, said liner circumferentially contacting said land surface of said container to completely cover said mouth of said container;
• a well defined by an upper end of said inner surface of said annular skirt, said inner ceiling surface of said top panel, an upper surface, an inner wall and an outer wall, said well having a sufficient depth and a complementary dimension to receive said land surface upon application of said closure onto said container and thereby cause said liner to sealingly contact said land surface;
• a plurality of symmetrical, substantially identical, continuous, annular, flexible tooth-like elements depending from, and extending inwardly of said upper surface of said well, said tooth-like elements defining a plurality of annular gaps between their respective adjacent tooth-like elements, each said gap defining a non-liner containing region when said liner is non-compressively positioned in said closure, said tooth-like elements and their respective adjacent gaps defining a plurality of successive liner compression and liner expansion regions adapted to permit said liner to expand within said gaps as it is compressed between said land surface and said compression regions during engagement of said closure with the container to permit penetration of said container neck into said well;
• a first annular bead formation along said inner wall of said well providing a directional force down against said oversized liner to extend said oversized liner down and around an inner surface of said mouth of said container, effecting a localized, positive seal between said liner and said land surface;
• and
• a second annular bead formation along said outer wall of said well providing directional force down against said oversized liner along an outer surface of said mouth, causing a complete wrap-around seal between said liner and said land surface.