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:
Aug. 11, 2015
Filed:
Jan. 09, 2013
Applicant:
Abb Oy, Helsinki, FI;
Inventor:
Risto Laurila, Espoo, FI;
Assignee:
ABB OY, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 46/00 (2006.01); B01D 46/26 (2006.01);
U.S. Cl.
CPC ...
B01D 46/0056 (2013.01); B01D 46/0045 (2013.01); B01D 46/0071 (2013.01); B01D 46/0072 (2013.01); B01D 46/0073 (2013.01); B01D 46/0083 (2013.01); B01D 46/26 (2013.01); B01D 2279/45 (2013.01);
Abstract
The disclosure relates to a gas permeable wall for preventing dirt present in a gas flow from passing through the gas permeable wall with the gas flow. In order to minimize maintenance, the gas permeable wall is a circumferential wall of a cover, and an outlet from the cover is provided for passing on gas having entered the cover through the circumferential gas permeable wall. A support is provided for attaching the cover rotatably to a device, and a drive unit is provided for rotating the cover.