Patent · US Expired

Apparatus for floor cleaning

US6553609B2 · kind B2 · utility

24Cited by

5References

17Claims

0Family size

Inventors

Dieter Tremmel · Nürnberg, DE
Peter Belkhofer · Forchheim, DE
Andreas Kistner · Merkendorf, DE
Michael Kotz · Forchheim, DE
Christian Neumann · Hungen, DE
Markus Merkl · Pressath, DE
Holger Sandner · Bubenreuth, DE

Key dates

Filing date	Apr 17, 2001
Grant date	Apr 29, 2003
Priority date	—
Expiry date	Apr 17, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L11/4072
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

The invention relates to an apparatus for floor cleaning, with several wheels 4, 5, 6 being attached to a frame R in such a way that a curve movement about a momentary center MP, MP1, MP2 can be performed and all momentary centers MP, MP1, MP2 form a momentary center axis MA extending substantially transversally to the frame R, and with a cleaning device 24a, 24b being received in the frame R, which cleaning device forms a cleaning surface area RF which is delimited by a circumferential edge. In order to reduce uncleaned residual surfaces when moving along contours it is provided in accordance with the invention that the momentary center axis MA forms at least one point of intersection S1, S2 in a section of the circumferential edge disposed in the zone of the longitudinal side of the frame R.

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