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:
Apr. 05, 2005
Filed:
Aug. 02, 1999
Yves Malecot, Crosville la Vieille, FR;
Joel Hungler, Ailly, FR;
Yves Malecot, Crosville la Vieille, FR;
Joel Hungler, Ailly, FR;
Georgia-Pacific France, Kunheim, FR;
Abstract
The invention relates to a filter system () including a filter element () for filtering a fluid within a cylindrical case (). The filter element is an absorbent tissue paper material in the form of a sheet compactly wound to form inner winding turns therein and to form a tubular cylinder inside the case () in a manner to partition a radially outside part () from a radially inside part (). The axial ends of the filter element are capped by the closed ends () of the case. The inner winding turns exhibit a contour which prevents the inner winding turns from unraveling inward. In operation, the fluid moves across the filter element () in a generally centripetal direction. The filter element () is characterized in that it is devoid of a central core.