Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 9, 2016
Patent Application Number
12345174
Date Filed
December 29, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
Curvilinear or other complex perforation patterns for paper products, such as paper towels and bath tissue, can be produced using a differential speed perforation nip formed between a rotating pattern roll and a moving anvil surface. The relative speed between the perforation elements on the surface of the pattern roll and the anvil surface shears the web at the perforation points.
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