Patent ID: 6786712
Filing Date: 2004-09-07
Classification: A44B,B29D,B65D,Y10T

Abstract:
An apparatus for providing a longitudinally extending interlocking closure device with stepped deflections so that the occlusion and peel force of the closure device is cycled intermittently over the length of the closure device, the apparatus comprising:extruding means for extruding first and second fastening strips, said first fastening strip having a male closure element and said second fastening strip have a female closure element; means located downstream of said extruding means for interlocking said fastening strips such that said male closure element engages said female closure element; and deforming means for cold deforming a series of intermittent stepped deflections in the interlocked fastening strips such that stepped deflections formed in the male closure element are in substantially congruent and interdigitating relation with corresponding stepped deflections formed in the female closure element.