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:
Dec. 18, 2012
Filed:
Oct. 27, 2003
Eric Edward Lennon, Roswell, GA (US);
Thomas William Brock, Woodstock, GA (US);
Bryan David Haynes, Advance, NC (US);
Douglas Jay Hulslander, Woodstock, GA (US);
Eric Edward Lennon, Roswell, GA (US);
Thomas William Brock, Woodstock, GA (US);
Bryan David Haynes, Advance, NC (US);
Douglas Jay Hulslander, Woodstock, GA (US);
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Abstract
The present invention provides a method of making a nonwoven web, the method including the steps of providing plurality of fibers and subjecting the fibers to a pneumatic attenuation force which imparts a velocity to the fibers, reducing the velocity of the fibers in a diffusion chamber which is formed substantially between opposed diverging sidewalls, subjecting the fibers to an applied electrostatic charge, and thereafter collecting the fibers into a web on a moving forming surface. The invention also provides an apparatus for forming nonwoven webs, the apparatus comprising a source of fibers, a fiber attenuation chamber, a diffusion chamber formed substantially between opposed diverging sidewalls, the diffusion chamber located below the fiber attenuation chamber, and a forming surface for collecting the fibers as a nonwoven web.