Patent ID: 6109465
Filing Date: 2000-08-29
Classification: B65D,Y10S

Abstract:
A tamper-proof closure system comprising:a container having a neck;said neck comprising a first wall portion and a central pouring opening;a sealing rim formed on said neck surrounding said central pouring opening;a downwardly facing annular ledge projecting outwardly from said first wall portion of said neck, said ledge having an inner diameter and an outer diameter;a plurality of cams spaced peripherally about said neck and having portions disposed below said ledge;each of said cams providing a working surface extending from the inner diameter of said ledge, around said neck, to a projecting portion disposed outwardly beyond the outer diameter of said ledge;said projecting portion of each of said cams being disposed radially outwardly of said ledge and radially outwardly of all portions of said neck intermediate said cam and said sealing rim; anda tamper-proof cap comprising a top wall, a depending peripheral flange, said flange being configured to form a plurality of vertical ribs and a plurality of webs interconnecting said ribs, tabs extending from said webs, each of said tabs having a first side edge, a second side edge and a transverse edge interconnecting said side edges, said tabs being bent inwardly and being dimensioned to engage said ledge to maintain a downward sealing force on said top wall.