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. 30, 2012
Filed:
Nov. 23, 2004
Ralf Wnuk, Bexbach, DE;
Markus Maretyak, Clausen, DE;
Ralf Wnuk, Bexbach, DE;
Markus Maretyak, Clausen, DE;
Hydac Process Technology GmbH, Neunkirchen, DE;
Abstract
A filter device for the insertion of filter elements () to be positioned in a filter housing () having a filter inlet () and a filter outlet () for the fluid to be filtered. The filter elements () are traversed in both directions for filtration or backwashing. Certain filter elements () perform the filtration in a filtration position and at least one additional filter element () can be backwashed in a backwashing position to clean its active filtration surface. As the individual filter elements () are brought into the backwashing position and are then returned to their filtration position in succession by a pivoting device (), the filter elements are individually displaced into the backwashing position in a temporal sequence, in contrast to prior art, where an arm-type backwashing device is pivoted towards the individual filter elements to carry out the backwashing process.