Patent ID: 6220466
Filing Date: 2001-04-24
Classification: B65D

Abstract:
A composite closure for a container having a mouth-defining rim prior to fitting to the same, which comprises a substantially open-ended, tubular plastics band (24, 24') internally formed with one or more thread formations (44) for engagement with a complementary formation or formations (20) on the container to attach the closure to the container, and a captive insert disc (72) having a free edge at least substantially of plastics material which is fitted and retained in the band for overlying and sealing with the mouth-defining rim (14) of the container, characterised in that:a) the disc (72) has its free edge (76) received in an inwardly facing annular recess (62, 62') having an outer periphery adjacent an inwardly extending flange formation (28) which forms an opening (70) at one end of the band;b) the disc (72) is oversized radially in relation to the recess (62, 62') and by engagement of the free edge (76) with the outer periphery of the recess is held in a domed condition which is convex to the closure exterior and projects towards the opening (70) of the band (66).