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. 03, 2026
Filed:
Jul. 07, 2023
Carl Freudenberg KG, Weinheim, DE;
Sascha Schumacher, Wald-Michelbach, DE;
Patrick Weber, Weinheim, DE;
Thomas Schroth, Bobenheim-Roxheim, DE;
Renate Tapper, Bensheim, DE;
Florian Fritz, Moerlenbach, DE;
CARL FREUDENBERG KG, Weinheim, DE;
Abstract
A cassette filter including a plurality of filter media packs, a frame for receiving the filter media packs, and protective grids. Two filter media packs in each case are arranged in a v-shape, and a gas flows through the filter media packs from a dirty gas side of the filter to a clean gas side of the filter in order to clean the gas. A respective protective grid of the protective grids is arranged on each filter media pack on the clean gas side. The protective grids have a grid structure with substantially closed curves of different sizes arranged centrically around at least one centre of the protective grid and with a plurality of connectors, which are oriented radially with respect to the centre of the protective grid and connect the closed curves to one another.