Sealing system
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United States of America Patent
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May 23, 2017
Issued Date -
N/A
app pub date -
Jan 22, 2015
filing date -
Jan 24, 2014
priority date (Note) -
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Abstract
An ultrasonic sealing system in a machine for making composite webs in the production of absorbent sanitary articles includes a contact roller having an axis of rotation and including a central portion and a peripheral portion which is supported by the central portion and includes an outer surface forming the outer surface of the contact roller itself. The contact roller includes a sealing pattern on the outer surface of the peripheral portion and also includes springs acting between the central portion and the peripheral portion, which is supported by the peripheral portion by means of the springs.
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