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:
Feb. 01, 2022
Filed:
Oct. 23, 2018
Hydac Process Technology Gmbh, Neunkirchen, DE;
Sebastian Hrin, Elsdorf, DE;
Hans-Jürgen Lingen, Mönchengladbach, DE;
HYDAC PROCESS TECHNOLOGY GMBH, Neunkirchen, DE;
Abstract
A filter device for cleaning particulate contaminants from a fluid flow, includes a plurality of filter elements () accommodated in filter chambers () as components of a joint filter housing () and grouped around a backwash device () having a piston accumulator () for receiving a backwash fluid. In the storage housing () of the piston accumulator, a piston () is guided in a longitudinally movable manner, is controlled by a pressure medium, and passes on the backwash fluid stored in the storage housing () on to at least one filter element () to be backwashed for cleaning purposes via a backwash device (). The backwash device also discharges the backwash fluid from the filter device. A specific filter element as a bypass filter element () is selected from the plurality of filter elements (), and exclusively removes particles after a changeover device () has been actuated, while the other filter elements () are excluded from this removal process.