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:
Jul. 16, 2019
Filed:
Apr. 29, 2015
Wta Vogtland Gmbh, Plauen, DE;
Reinhard Voigt, Gotha, DE;
Volker Albrecht, Plauen, DE;
Hardy Mueller, Muldenhammer, DE;
Kurt Bock, Erfurt, DE;
Eberhard Semmler, Blankenhain OT Meckfeld, DE;
WTA VOGTLAND GMBH, Plauen, DE;
Abstract
The invention relates to a filter element () comprising a drainage element () which is arranged between two filter membranes (). According to the invention, said drainage element () is made of a non-woven filtering material which is arranged in a laminated manner between the filter membranes () respectively by means of an adhesive non-woven material (). The invention also relates to a method for producing a filter element (), a drainage element () made from a non-woven filtering material being laminated between two filter membranes (). An adhesive non-woven material () is arranged between the drainage element () and each filter membrane (), then lamination takes place due to the thermal effect under pressure.
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