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:
Jan. 19, 1982
Filed:
May. 01, 1980
Berlie R Hill, Cana, VA (US);
Burlington Industries, Inc., Greensboro, NC (US);
Abstract
A method and apparatus are provided for the bonding of web fibers together ultrasonically. A patterned roll anvil, or the equivalent, and a horn of an ultrasonic welding machine are constructed especially for producing a nonwoven fabric from a batt of random loose ultrasonically fusible fibers. The patterned roll anvil has raised portions formed thereon spaced from each other in a direction perpendicular to the axis of rotation of the roller a distance A. The horn face is constructed so that when disposed in operative association with the anvil roller parallel to the axis of rotation of the roller, the horn face has a dimension X perpendicular to the axis of rotation of the roller that is less than 2A. In forming fabric from batts having a weight 3 ounces per square yard or less, a carrier of flexible sheet material, such as tissue paper, is passed with the batt in face to face abutting relationship, between the horn and anvil while continuously supplying ultrasonic energy to the batt with the machine sufficient to form the batt into a nonwoven fabric.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile