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:
Aug. 27, 2013
Filed:
May. 16, 2012
Ralf Wnuk, Bexbach/Kleinottweiler, DE;
Jörg Hermann Gerstner, Püttlingen, DE;
Bernhard Schlichter, Saabrücken, DE;
Ralf Wnuk, Bexbach/Kleinottweiler, DE;
Jörg Hermann Gerstner, Püttlingen, DE;
Bernhard Schlichter, Saabrücken, DE;
Hydac Process Technology GmbH, Neunkirchen, DE;
Abstract
A filter device operating method involves a plurality of filter elements () received in a filter housing having a filter inlet for a fluid to be filtered and a filter outlet for the filtered fluid. Flow through the filter elements () is possible in both directions for filtration or backwashing. Because the shut-off element () is a fast-closing plate valve () actuated by a hydraulic piston () and blocks the fluid connection so quickly, a feeding effect is created in the manner of a pressure blow on the backwashed filter element (). The feeding effect increases the cleaning of pollution on the filter element (), achieving an improved backwashing cleaning.