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Patents

Sealing System:

U.S. Patent No. 9,655,786

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By: Karen McIntyre

Editor, Nonwovens Industry

Matteo Piantoni, Albino, Italy; and Valerio Soli, Bologna, Italy.
Assigned to GDM S.p.A., Bologna, Italy.

Filed: 1/22/15
Issued: 5/23/17

An ultrasonic sealing system in a machine for making composite webs in production of absorbent sanitary articles, comprising: a contact roller, said contact roller having an axis of rotation and comprising a central portion and a peripheral portion which is supported by said central portion, the peripheral portion including an outer surface forming an outer surface of said contact roller, said contact roller comprising a sealing pattern on said outer surface of said peripheral portion, said contact roller including a suspension system acting between said central portion and said peripheral portion, said peripheral portion being associated with said central portion by said suspension system.

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