US 11,998,148 B2
Floor cleaning machine
Alexander Braendle, Gundelsheim (DE); Manuel Schulze, Kornwestheim (DE); Fabian Moser, Schorndorf (DE); Moritz Irion, Cologne (DE); and Swen Sorgenfrei, Schwaikheim (DE)
Assigned to Alfred Kärcher SE & Co. KG, Winnenden (DE)
Filed by Alfred Kärcher SE & Co. KG, Winnenden (DE)
Filed on May 20, 2022, as Appl. No. 17/749,692.
Application 17/749,692 is a continuation of application No. 17/005,043, filed on Aug. 27, 2020, granted, now 11,457,790.
Application 17/005,043 is a continuation of application No. 15/985,105, filed on May 21, 2018, granted, now 10,786,130, issued on Sep. 29, 2020.
Application 15/985,105 is a continuation of application No. 15/179,458, filed on Jun. 10, 2016, granted, now 9,999,332, issued on Jun. 19, 2018.
Application 15/179,458 is a continuation of application No. PCT/EP2013/076445, filed on Dec. 12, 2013.
Prior Publication US 2022/0296067 A1, Sep. 22, 2022
Int. Cl. A47L 11/26 (2006.01); A47L 5/24 (2006.01); A47L 9/32 (2006.01); A47L 11/204 (2006.01); A47L 11/40 (2006.01)
CPC A47L 11/26 (2013.01) [A47L 5/24 (2013.01); A47L 9/322 (2013.01); A47L 11/204 (2013.01); A47L 11/4016 (2013.01); A47L 11/4041 (2013.01); A47L 11/4044 (2013.01); A47L 11/4083 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A floor cleaning machine, comprising:
a support device;
at least one cleaning roller which is arranged on the support device, is capable of being driven in rotation and is provided with a cleaning substrate;
a fan device for creating a suction flow;
a suction channel device for the suction flow which provides at least one suction channel operatively connected for fluid communication between the fan device and the at least one cleaning roller;
wherein the at least one suction channel has at least one mouth towards the at least one cleaning roller and wherein the at least one mouth comprises a first mouth wall and a spaced second mouth wall having a mouth opening formed therebetween; and
wherein at least one of the first mouth wall and the second mouth wall is in contact against or protrudes into the cleaning substrate of the at least one cleaning roller; and
at least one sweeping lip associated with the at least one cleaning roller;
wherein the at least one sweeping lip is configured such that it contacts the floor that is to be cleaned.