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. 06, 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, Incorporated, Minnetonka, MN (US);
Abstract
A non-woven depth filter cartridge includes a cylindrical mass of essentially continuous melt-blown polymer filaments and an essentially continuous traversing melt-blown polymer filament extending through the mass. The mass has a depth dimension, a longitudinal dimension, and a circumferential dimension. The mass includes a plurality of layers, each of the plurality of layers being generally oriented in the longitudinal and circumferential dimensions. The traversing filament is generally oriented in the depth dimension and extends through one or more layers of the mass. In one embodiment, the layers of the mass comprise concentric zones. The traversing filament is intentionally deposited and positioned to improve the physical properties of the filter cartridge.