Patent ID: 6959829
Filing Date: 2005-11-01
Classification: B65D

Abstract:
1. A leak-resistant plastic container and closure, the container comprising: an open end; an inner periphery; an outer sidewall; and an inwardly curving container flange extending inwardly and downwardly from said sidewall and around said inner periphery at said open end and terminating in a free edge; and said closure comprising: a generally planar and circular inner lid; a spring extending around an outer circumference of said inner lid and exerting a sealing pressure against said container flange and a portion of said sidewall when said closure is secured on the open end of said container; an arcuate flange receptacle extending around an outer circumference of said closure at a circumference outside said spring, wherein said flange receptacle comprises an inner surface and an outer surface; a secondary sealing bead, positioned on said inner surface of said flange receptacle for engaging said flange free edge when a primary seal dislodging force is applied to a primary seal; and a primary sealing bead, positioned on an outer surface of said flange receptacle and opposite said secondary sealing bead for engagement with a complementary bead receiving formation on said container, wherein said primary sealing bead and said complementary bead receiving formation forming a primary seal there between.