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:
Nov. 19, 2019
Filed:
Jan. 11, 2019
Rt-filtertechnik Gmbh, Friedrichshafen, DE;
Frank Oberli, Eglisau, CH;
Dirk Schoenfeld, Schwabsdorf, DE;
RT-FILTERTECHNIK GMBH, Friedrichshafen, DE;
Abstract
A filter element has a preferably multilayer structure of a pleated filter medium () with a plurality of individual filter pleats (). Due to an alternating sequence of filter pleats () with a first pleat height (h) and filter pleats () with a second pleat height (h), more effective filter surfaces are available than with filter pleats with a uniform pleat height. Upon throughflow by a fluid to be filtered, a lower surface load for the filter medium (and lower passage speed of the fluid are present during filtration. A static loading of the filter medium () during operation of the filter is then reduced. A hydraulic circuit has such a filter element ().