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:
Apr. 16, 2024
Filed:
Mar. 01, 2021
Mann+hummel Gmbh, Ludwigsburg, DE;
Christoph Schulz, Stuttgart, DE;
Tobias Warth, Winnenden, DE;
Marc Hittinger, Reutlingen, DE;
Jens Gusek, Freudental, DE;
Maximilian Bauch, Boennigheim, DE;
Thilo Mueller, Karlsruhe, DE;
Anja Koronai-Bauer, Ludwigsburg, DE;
Sylvain Michel Tchale, Karlsruhe, DE;
Roman Eder, Ludwigsburg, DE;
MANN+HUMMEL GmbH, Ludwigsburg, DE;
Abstract
A filter device for ambient air filtration has a blower housing with air inlet and air outlet. A device for generating an air flow is arranged in the blower housing and generates an air flow in operation from air inlet to air outlet. A flexible air conducting hose is provided with a first open end connected to the air outlet of the blower housing and with a second closed end. The flexible air conducting hose has openings arranged between first open end and second closed end. Filter elements are arranged in the openings, respectively. The filter elements separate a raw side inside the air conducting hose from a clean side downstream of the filter element. The air conducting hose is inflated in operation of the device by the air flow. The flexible air conducting hose has a reduced air permeability compared to the air permeability of the filter elements.