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:
Oct. 04, 2022
Filed:
Nov. 16, 2018
Hydac Process Technology Gmbh, Neunkirchen, DE;
Bernhard Schlichter, Saarbrücken, DE;
Jörg Hermann Gerstner, Püttlingen, DE;
Albert Kaints, Spiesen-Elversberg, DE;
HYDAC PROCESS TECHNOLOGY GMBH, Neunkirchen, DE;
Abstract
A filter device has a filter housing () having a fluid inlet () for unfiltered matter and having a fluid outlet () for filtrate, and has at least one one-piece or multi-part filter insert () held in the filter housing (). Filter insert () can be cleaned using a backwash device () having at least one backwash element () in counter flow to the direction of filtration. The backwash element can be moved along the inside of the relevant filter insert () by a fluid-conveying drive shaft () of a rotary drive (). The individual backwash element () has, at the end adjacent to this inside, at least one gap-shaped passage opening, which extends in parallel to the axis of rotation of the drive shaft () and which opens into a flow chamber connected to the drive shaft () in a fluid-conveying manner. At least one further backwash device () has a further backwash element (). The fluid-conveying drive shaft () is divided into chambers () separated from each other. One backwash element () of one backwash device () is connected to one of the chambers (). The other backwash element () of the other backwash device () is connected to another chamber ().