Patent ID: 6119439
Filing Date: 2000-09-19
Classification: B26D,B26F,B65B,Y10S,Y10T

Abstract:
A non-contact rotary knife apparatus for perforating a seal area between two adjacent pouches in a continuous web, the apparatus comprising:a major knife hub mounted for rotation and having transversely extending perforating anvils spaced about the exterior of said major knife hub, each of said anvils having elongated, spaced-apart recesses; anda minor knife hub mounted for rotation proximate to said major knife hub and having perforating blades spaced about the exterior of said minor knife hub, each of said blades having an edge with spaced perforating teeth disposed transversely therealong, said teeth operably meshing with but not contacting said recesses of said anvils when said hubs are rotated so as to produce a line of perforations in a seal area transversely between adjacent pouches in a continuous web passing between respective areas of said perforating blades and said perforating anvils.