Patent ID: 6269614
Filing Date: 2001-08-07
Classification: B26F

Abstract:
Apparatus for bursting perforations on an article having a main body portion and a perforated lid, said perforated lid being separable from said main body portion at perforations along the periphery of said main body portion, said apparatus comprising:a frame having a substantially flat, movable surface for supporting said article with said perforations exposed for impact;a first retractable burst member and an opposed second retractable burst member arranged for movements toward and away from one another along a common axis passing through said first and second retractable burst members, said first and second retractable burst members each being arranged for applying a predetermined impact force on an end portion of said perforated lid;a retractable separator member arranged in said frame for capturing said perforated lid and then separating said perforated lid from said main body portion at said perforations;means for moving either of said first and second retractable burst members into engaging contact with a respective end portion of said perforated lid for forming at least partially burst first perforations nearest to said either of said first and second retractable burst members;means for moving the other of said first and second retractable burst members into engaging contact with an opposing respective end portion on said perforated lid for forming at least partially burst, second perforations nearest said other of said first and second retractable burst members; and,means for moving said retractable separator member into a first position capturing said perforated lid and then to a second position separating said perforated lid from said main body portion of said article.