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公开(公告)号:US20050275148A1
公开(公告)日:2005-12-15
申请号:US11112160
申请日:2005-04-22
申请人: Harold Beaudoin , Wayne Lutzke , Hubert Van de Pas
发明人: Harold Beaudoin , Wayne Lutzke , Hubert Van de Pas
CPC分类号: B65H27/00 , A61F13/15764 , B65H2406/332 , B65H2801/57
摘要: 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.
摘要翻译: 公开了用于固定和保持各种尺寸的可拉伸膜的真空轮。 真空轮的外表面包括真空开口和真空槽的有利图案,其中真空槽提供至少两个真空开口之间的真空连通。 优选实施例提供了一种真空开口和真空槽的人字形或锯齿形图案,其被配置为提供改善的真空保持强度。