Patent · US Active

Surface cleaning machine

US10959590B2 · kind B2 · utility

6Cited by

30References

40Claims

0Family size

Assignee

ALFRED KÄRCHER SE & CO. KG · DE

Inventors

Fabian Moser · Schorndorf, DE
Christoph Rufenach · Ditzingen, DE
Rainer Kurmann · Aspach, DE
Andreas Mueller · Zeitlarn, DE
Manuel Schulze · Kornwestheim, DE

Key dates

Filing date	Apr 10, 2018
Grant date	Mar 30, 2021
Priority date	—
Expiry date	Apr 12, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L11/4013
WIPO fieldFurniture, games
WIPO sectorOther fields

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.