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:
Sep. 14, 2010
Filed:
Sep. 05, 2007
John J. Lafond, Appleton, WI (US);
Jennifer L. Bowden, Pittsville, WI (US);
Lynn F. Kroll, Sherwood, WI (US);
Joseph Botelho, Lincoln, RI (US);
John J. LaFond, Appleton, WI (US);
Jennifer L. Bowden, Pittsville, WI (US);
Lynn F. Kroll, Sherwood, WI (US);
Joseph Botelho, Lincoln, RI (US);
Albany International Corp., Albany, NY (US);
Abstract
The invention relates to ultrasonic gap welding of flat woven fabrics. Specifically, the invention relates to a method of ultrasonic welding the seam termination yarn ends of a fabric using a controlled gap. A mechanical stop may be employed to control the distance or gap between the horn and anvil to a predetermined level based on the depth of welding and amount of weld energy. By adding another degree of control, the ultrasonic gap welding technique of the present invention is able to achieve fabric seams that are stronger than conventional seams, and even those enhanced with gluing, and is conducive to formation of fabric seams by spot welding or along the termination yarn ends of the fabric.