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:
Mar. 30, 2021
Filed:
Apr. 10, 2018
Alfred Kärcher Gmbh & Co. KG, Winnenden, DE;
Fabian Moser, Schorndorf, DE;
Christoph Rufenach, Korntal-Muenchingen, DE;
Rainer Kurmann, Aspach, DE;
Andreas Mueller, Oppenweiler, DE;
Manuel Schulze, Kornwestheim, DE;
Alfred Kärcher SE & Co. KG, Winnenden, DE;
Abstract
A surface cleaning machine is provided, including a device body having a housing, a suction unit device having a fan, said suction unit device being arranged in the housing, a cleaning head which is arranged at the device body outside of the housing and comprises at least one cleaning roller and is operatively connected to the suction unit device for fluid communication therewith, an air-cooled drive motor for rotatingly driving the at least one cleaning roller, and a process air routing device for process air of the suction unit device, wherein the drive motor is arranged outside of the housing of the device body and wherein a cooling air routing device for cooling air of the drive motor comprises at least one fluid path which is arranged at or in the housing and/or wherein the cooling air routing device is coupled to the process air routing device.