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:
Jul. 12, 2005
Filed:
Oct. 23, 2002
Thomas M. Aune, Mound, MN (US);
Clinton V. Kopp, Bismarck, ND (US);
Michael J. Madsen, Eden Prairie, MN (US);
Philip M. Rolchigo, Bedminster, NJ (US);
Travis G. Stifter, Brooklyn Park, MN (US);
Thomas M. Aune, Mound, MN (US);
Clinton V. Kopp, Bismarck, ND (US);
Michael J. Madsen, Eden Prairie, MN (US);
Philip M. Rolchigo, Bedminster, NJ (US);
Travis G. Stifter, Brooklyn Park, MN (US);
Osmonics, Inc., Minnetonka, MN (US);
Abstract
A method of continuously producing a melt-blown polymer filament mass includes producing a first set of melt-blown polymeric filaments, collecting the first set of filaments on a rotating collection device to form a tubular filament mass having a plurality of layers, and applying a second set of melt-blown polymeric filaments to the filament mass. The first set is produced generally in-line along an axis generally parallel to the collection device. The second set is deposited on the filament mass such that filaments of the second set extend through and engage a plurality of layers of the filaments of the first set. The method further includes urging the filament mass along the collection device to create a tubular filament mass of indefinite length with a first major surface and a second major surface. In one embodiment, the second set are applied in a sweeping motion.