US 12,446,742 B2
Motorized suction head
Riccardo Roschi, Crosio della Valle (IT)
Assigned to NEW ERMES EUROPE S.R.L., Crosio Della Valle (IT)
Appl. No. 18/259,022
Filed by NEW ERMES EUROPE S.R.L., Crosio della Valle (IT)
PCT Filed Dec. 17, 2021, PCT No. PCT/EP2021/086620
§ 371(c)(1), (2) Date Jun. 22, 2023,
PCT Pub. No. WO2022/136185, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 102020000032069 (IT), filed on Dec. 23, 2020.
Prior Publication US 2024/0298853 A1, Sep. 12, 2024
Int. Cl. A47L 9/04 (2006.01); A47L 9/28 (2006.01)
CPC A47L 9/0411 (2013.01) [A47L 9/0477 (2013.01); A47L 9/2831 (2013.01); A47L 9/2847 (2013.01); A47L 9/2857 (2013.01); A47L 9/2889 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A motorized suction head comprising a roller, the roller being rotatable and being configured to rub the surface to be cleaned, an electric motor and a transmission for connecting the roller to the electric motor so as to rotate the roller, an on/off switch for starting and stopping the rotation of the motor, wherein the suction head further comprises a speed selector for selecting one of a plurality of rotation speeds of the electric motor, wherein the suction head further comprises an electronic board programmed to provide a rising ramp when the electric motor is turned on and/or a falling ramp when the electric motor is turned off.