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:
Jun. 23, 2026
Filed:
Jan. 20, 2022
Applicant:
Hydac Filtertechnik Gmbh, Sulzbach / Saar, DE;
Inventors:
Alexander Nenno, Marpingen, DE;
Andre Michael Schneider, Saarbrücken, DE;
Klaus Morgens, Trier, DE;
Marco Tassone, Saarbrücken-Eschberg, DE;
Assignee:
HYDAC FILTERTECHNIK GMBH, Sulzbach/Saar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 29/23 (2006.01); B01D 29/58 (2006.01); B01D 36/00 (2006.01);
U.S. Cl.
CPC ...
B01D 29/232 (2013.01); B01D 29/58 (2013.01); B01D 36/001 (2013.01); B01D 2201/298 (2013.01);
Abstract
The invention relates to a filter device at least consisting of two coaxially arranged filter elements () which delimit a cavity () between them, characterised in that the inner side () of the outer filter element (), which faces the cavity (), has at least in some parts a separating arrangement () for gas bubbles such as air bubbles, and the cavity () opens at the head end into at least one discharge opening () for gas bubbles coming in.