Patent 10259165 was granted and assigned to Aurizon Ultrasonics, Llc on April, 2019 by the United States Patent and Trademark Office.
An apparatus for fabricating an elastic nonwoven material generally includes a rotary ultrasonic horn and a rotary anvil positionable in close proximity to the ultrasonic horn. The anvil has a face with a width and a circumferential axis. The face has a plurality of ridges each of which defines a plurality of interspaced lands and notches.