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:
May. 13, 2008
Filed:
Nov. 14, 2003
Applicant:
Aulis Perälä, Pirkkala, FI;
Inventor:
Aulis Perälä, Pirkkala, FI;
Assignee:
Tamfelt OYJ ABP, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/08 (2006.01); B01D 29/11 (2006.01); B01D 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter cloth whose underside comprises substantially parallel, additional yarnsthat are thicker than the rest of the yarns of the cloth, substantially parallel channelsbeing formed between the yarns, wherein filtered liquid passed through the cloth is allowed to flow in the direction of the surface of a filtering elementbetween the filtering portion of the cloth and the surface of the element. The invention further relates to a filtering module manufactured from the filter cloth of the invention.