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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.:

US 8951322 B1

PDFFull Text
Date of Patent:
Feb. 10, 2015

Filed:

Sep. 28, 2007

Filter fan

Applicants:

Andreas Pfannenberg, Hamburg, DE;

Tobias Reutter, Horstmar, DE;

Wolfgang Lodweg, Münster, DE;

Inventors:

Andreas Pfannenberg, Hamburg, DE;

Tobias Reutter, Horstmar, DE;

Wolfgang Lodweg, Münster, DE;

Assignee:

Pfannenberg GmbH, Hamburg, DE;

Attorneys:

Lucas & Mercanti, LLP

Klaus P. Stoffel

Primary Examiner:

Thomas McKenzie

Int. Cl.
CPC ...
B01D 50/00 (2006.01); H05K 7/20 (2006.01); B01D 45/08 (2006.01); B01D 46/00 (2006.01); B01D 46/10 (2006.01); F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20181 (2013.01); B01D 45/08 (2013.01); B01D 46/0031 (2013.01); B01D 46/10 (2013.01); B01D 50/002 (2013.01); F04D 29/703 (2013.01); B01D 2279/45 (2013.01);
Abstract

A filter fan of a switch cupboard or of an electrical and/or electronic device placed in a casing with a blast producing an air flow and with a filter element () which is placed in the air flow and separates a clean side, on which the blast is placed, from an unclean side, wherein the filter element is held in a frame which can be fixed on the casing by covering the air passage opening penetrating through the casing wall and wherein a protective grid () is placed between the filter element () and the blast, the invention proposes that a bridging-free distance is provided between the filter surface of the filter element () and the protective grid (), wherein this distance is dimensioned so as to make possible the discharge of water drops on the clean side surface of the filter element and to avoid a contact of the water drops with the protective grid.

Find Patent Forward Citations

Pfannenberg, Andreas. (2015). Filter fan (U.S. Patent No. 8951322). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8951322

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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