Appeal No. 97-3065 Page 7
Application No. 08/452,747
vacuum roll or drum 20, an elastic segment transfer device 21,
a backup member in the form of an elastomer coated transfer
roll 22, a segment pressing element 23 and a knife roll 24
near the top of the drawing. A ribbon of elastic material 14A
is fed onto the periphery of vacuum drum 20. The knife roll
24 rotates with the periphery of vacuum drum 20 and uses the
drum as an anvil for cutting individual segments 14 from
elastic ribbon 14A. The segments are carried rotationally on
vacuum drum 20 until they reach a lowermost position where
they are picked off of the vacuum drum 20 by segment transfer
means 21 which stretches the segments and transfers them to
sheet 13 which runs over transfer roll 22 which serves as a
backup member for the sheet or web when an elastic ribbon
segment is being pressed onto it. Roll 22
is provided with a silicone rubber cylindrical sleeve 35 which
inhibits slipping between sheet 13 and the roll 22 and
provides resiliency for pressing the segment on the sheet.
Figures 11-13 show another implementation of the
stretch-while-rotating concept in which the elastic segment
stretching and transferring device 21 is shown isolated from
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Last modified: November 3, 2007