US 11,998,869 B2
Filter element
Holger Lepold, Rudersberg (DE)
Assigned to Sprintus GmbH, Welzheim-Breitenfürst (DE)
Filed by Sprintus GmbH, Welzheim-Breitenfürst (DE)
Filed on Apr. 21, 2020, as Appl. No. 16/853,993.
Claims priority of application No. 19171006 (EP), filed on Apr. 25, 2019.
Prior Publication US 2020/0338489 A1, Oct. 29, 2020
Int. Cl. B01D 46/00 (2022.01); B01D 46/68 (2022.01); B01D 46/86 (2022.01); A47L 9/10 (2006.01); A47L 9/14 (2006.01)
CPC B01D 46/86 (2022.01) [B01D 46/68 (2022.01); A47L 9/10 (2013.01); A47L 9/14 (2013.01); A47L 9/1463 (2013.01); B01D 46/0005 (2013.01); B01D 2221/02 (2013.01); B01D 2221/16 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A vacuum cleaner, comprising:
a filter element disposed in the vacuum cleaner, the filter element including an upper side and a lower side which lies opposite the upper side;
the filter element including a filter body extending from the upper side to the lower side and forming a wall of a clean air space situated between the upper side and the lower side;
the filter element including a conveying opening arranged on the upper side into the clean air space, the vacuum cleaner driving an air flow through the conveying opening in a first direction for flushing the filter body and a second direction opposite the first direction for suction;
the filter element including a deflecting surface extending from the upper side to the lower side in the clean air space, the deflecting surface being inclined relative to the wall of the clean air space to deflect the air flow in the first direction through the conveying opening toward the wall of the clean air space to flush the filter body;
the deflecting surface forming a lower boundary of the clean air space with the wall of the clean air space, wherein the deflecting surface is configured to divide the clean air space into two subspaces which are separated from one another in a fluid-tight manner;
a longitudinal beam element is disposed at the upper side, and an upper end of the deflecting surface is attached to the longitudinal beam element; and
the filter element including a wall element adjacent to the wall of the clean air space, the deflecting surface including a lower end attached to a lower end of the wall element.