Harold Beaudoin - Sheboygan Falls WI, US Wayne Lutzke - Plymouth WI, US Hubert Van de Pas - Plymouth WI, US
International Classification:
B65H005/22 B65H083/00 B65H085/00 B65H005/00
US Classification:
271010010
Abstract:
A vacuum wheel for securing and retaining various sizes of stretchable film is disclosed. The outer surface of the vacuum wheel includes an advantageous pattern of vacuum openings and vacuum slots, wherein the vacuum slots provide vacuum communication between at least two of the vacuum openings. A preferred embodiment provides a chevron or zig-zag shaped pattern of vacuum openings and vacuum slots configured to provide improved vacuum holding strength.