Invention Grant
- Patent Title: Methods and apparatus for application of nested zero waste ear to traveling web
- Patent Title (中): 将零废弃耳朵应用于旅行网的方法和装置
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Application No.: US12798520Application Date: 2010-04-05
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Publication No.: US08172977B2Publication Date: 2012-05-08
- Inventor: John McCabe , Jeff Fritz , Robert E. Andrews
- Applicant: John McCabe , Jeff Fritz , Robert E. Andrews
- Applicant Address: US WI Sheboygan Falls
- Assignee: Curt G. Joa, Inc.
- Current Assignee: Curt G. Joa, Inc.
- Current Assignee Address: US WI Sheboygan Falls
- Agency: Ryan Kromholz & Manion, S.C.
- Main IPC: B32B37/00
- IPC: B32B37/00 ; B32B37/02 ; B32B38/00 ; B32B38/04

Abstract:
The present invention provides a process wherein a rotary knife or die, with one or more cutting edges, turns against and in coordination with a corresponding cylinder to create preferably trapezoidal ears. Ear material is slit into two lanes, one for a left side of a diaper and the other for a right side of a diaper. Fastening tapes are applied to both the right and the left ear webs. The ear material is then die cut with a nested pattern on a synchronized vacuum anvil. The resulting discrete ear pieces however, due to the trapezoidal pattern of the ears, alternate between a correct orientation and an incorrect (reversed) orientation. The reversed ear is required to be rotated 180° into the correct orientation such that the ears and associated tape present a left ear and a right ear on the diaper.
Public/Granted literature
- US20100258240A1 Methods and apparatus for application of nested zero waste ear to traveling web Public/Granted day:2010-10-14
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