ULTRASONICALLY WELDED LATERAL SEALS

摘要

A horn (2) for an ultrasonic welder includes a pattern of knurls (6) on a face (4) of the horn (2). The knurls (6) are spaced by a pattern of indentations (8, 10) including fist indentations (8a, 10a) formed a first depth from a contact plane and second indentations (8b, 10b) formed a second depth from the contact plane.