Patent · US Active

Self-propelled surface cleaning machine and method for operating a self-propelled surface cleaning machine

US9949607B2 · kind B2 · utility

0Cited by

8References

23Claims

0Family size

Assignee

Alfred Kärcher GmbH & Co. KG · DE

Inventors

Juergen Merz · Balingen, DE
Frank Nonnenmann · Schorndorf, DE
Michael Oesterle · Rutesheim, DE
Bernd Noller · Bad Schönborn, DE

Key dates

Filing date	May 27, 2015
Grant date	Apr 24, 2018
Priority date	—
Expiry date	Jul 30, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/72
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A self-propelled surface cleaning machine is proposed, including a floor cleaning device, a steerable front wheel, a steering device associated with the front wheel, a rear wheel device having at least one left rear wheel and at least one right rear wheel, a first drive device for driving the front wheel, a second drive device for driving the rear wheel device and a differential device for the rear wheel device that allows different speeds of rotation for the at least one left rear wheel and the at least one right rear wheel.

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