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. 31, 2023
Filed:
Apr. 27, 2018
Hydac Process Technology Gmbh, Neunkirchen, DE;
Ralf Wnuk, Bexbach/Kleinottweiler, DE;
Thomas Boettcher, Illingen-Huettigweiler, DE;
HYDAC PROCESS TECHNOLOGY GMBH, Neunkirchen, DE;
Abstract
A filter apparatus () has a plurality of filter elements () in a filter housing () having a filter inlet () for a fluid to be filtered and a filter outlet () for the filtered fluid. A pressure control device () has at least one control plate () located inside a connection chamber (). The control plate laterally passes over individual upper element openings () of the filter element to be backwashed (), in a predefinable sequence, covering the opening to an increasing degree and then exposing the opening again. A discharge opening () of the backwash device () is, at least in part, fluidically connected to a lower element opening () of the filter element () to be backwashed, as the pressure control device () moves towards the upper element opening ().