초록 ▼

A composite closure for a container having a ring shaped cap with a ring shaped top and an annular skirt depending downwardly from the outer periphery of the top. The skirt is provided with internal threads for engaging external threads on the container neck. A disk shaped lid insert has its outer p

A composite closure for a container having a ring shaped cap with a ring shaped top and an annular skirt depending downwardly from the outer periphery of the top. The skirt is provided with internal threads for engaging external threads on the container neck. A disk shaped lid insert has its outer peripheral edge annularly received in an annular internal lid retaining groove in the cap which permits relative rotation between the lid insert and the threaded cap. An elastic annular seal is received in an annular groove provided in the bottom side of the lid insert for sealing the upper edge of a container.

대표청구항 ▼

[ We claim:] [1.] A composite closure for a container, comprising:a ring shaped cap having a ring shaped top and an annular skirt depending downwardly from an outer peripheral of said top and said skirt having internal threads for engaging external threads on a container neck;a disk shaped lid inser

[ We claim:] [1.] A composite closure for a container, comprising:a ring shaped cap having a ring shaped top and an annular skirt depending downwardly from an outer peripheral of said top and said skirt having internal threads for engaging external threads on a container neck;a disk shaped lid insert having top and bottom faces and an outer peripheral edge annularly received in an annular internal lid retaining groove in said cap with said retaining groove positioned above said internal threads for providing a unitary composite closure with relative rotation permitted between said lid insert and said cap;an elastic annular seal member received in an annular seal groove provided in the bottom side of said lid insert and dimensioned to engage an upper annular edge of a container;said lid insert having a downwardly depending plug portion for protruding into the interior of a container neck and reinforcing said lid insert;said plug comprised of an annular skirt depending downwardly from an inner edge of said seal groove; andsaid plug including reinforcing webs securing an internal face of said plug skirt with inner portions of the bottom side of said lid insert.