08016972 is referenced by 32 patents and cites 503 patents.

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.

Title
Methods and apparatus for application of nested zero waste ear to traveling web
Application Number
12/151667
Publication Number
8016972 (B2)
Application Date
May 8, 2008
Publication Date
September 13, 2011
Inventor
Noel Horneck
Glenbeulah
WI, US
Jeff W Fritz
Plymouth
WI, US
Robert E Andrews
Sheboygan
WI, US
Agent
Ryan Kromholz & Manion S C
Assignee
Curt G Joa
WI, US
IPC
B32B 38/18
B32B 38/04
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