Patent · US Active

Surface cleaning machine

US11058274B2 · kind B2 · utility

2Cited by

27References

19Claims

0Family size

Assignee

ALFRED KÄRCHER SE & CO. KG · DE

Inventors

Andreas Mueller · Zeitlarn, DE
Thomas Boerkircher · Marbach am Neckar, DE
Rainer Kurmann · Aspach, DE
Thomas Zerrer · Winnenden, DE

Key dates

Filing date	Sep 7, 2018
Grant date	Jul 13, 2021
Priority date	—
Expiry date	Dec 19, 2038

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L11/4016
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A surface cleaning machine is proposed which includes an appliance body and a cleaning head which is arranged on the appliance body, wherein at least one driven cleaning roller unit is positioned on the cleaning head and a dirty fluid tank device is arranged on the cleaning head, and a drive motor, wherein a scraper guide device which acts on the at least one cleaning roller unit is associated with the at least one cleaning roller unit, wherein the scraper guide device is arranged at an inlet orifice of the dirty fluid tank device, and wherein the scraper guide device is arranged and formed in such a way that dirty fluid is couplable from the at least one cleaning roller unit via the inlet orifice of the dirty fluid tank device into the dirty fluid tank device without a suction fan.

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