The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2001
Filed:
Dec. 23, 1999
Edward Muesch, Toms River, NJ (US);
Charles Lee Adams, Flemington, NJ (US);
Angela Chaney, Athens, GA (US);
James Meizanis, Sommerville, NJ (US);
Robert Kapalo, Long Valley, NJ (US);
Other;
Abstract
The invention includes of a system and method of ultrasonically perforating adhesive bandage backings. The invention eliminates the gap between the ultrasonic horn and the pin roll, and provides for a wear resistant release coating on the pin roll. Further, the method and system disclose cooling the ultrasonic horn with a forced air stream, and provide for a pre- or post-nip roll to control the tension of the continuous web of backing. The web of backing is kept under tension with a nip roll, and passes between an ultrasonic horn and an immediately adjacent pin roll for perforation by the ultrasonic horn. The resulting material of the web backing is smoother, and has better hole quality than that seen in the prior art.