Patent · US Expired

Floor treatment system with self-propelled and self-steering floor treatment unit

US7055210B2 · kind B2 · utility

223Cited by

3References

16Claims

0Family size

Assignee

Alfred Kärcher GmbH & Co. KG · DE

Inventors

Joachim Keppler · Winnenden, DE
Jochen Math · Auenwald, DE
Roger Skoumal · Bad Marienberg, DE

Key dates

Filing date	Jan 4, 2005
Grant date	Jun 6, 2006
Priority date	—
Expiry date	Jan 4, 2025

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L2201/024
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

The invention relates to a floor treatment system with a self-propelled and self-steering floor treatment unit, which comprises an electrically driven floor treatment assembly and also a rechargeable power supply unit, and with a central charging station for recharging the power supply unit, the floor treatment unit being capable of being electrically connected to the charging station by means of respective electrical connecting elements disposed on the charging station and the floor treatment unit. In order to develop the floor treatment system in such a way that improved electrical coupling of the respective connecting elements is made possible, it is proposed according to the invention that at least one of the respective connecting elements is spring-mounted.

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