Patent · US Active

Manually-displaceable cleaning device having counter-rotatable rollers

US10842338B2 · kind B2 · utility

2Cited by

10References

18Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Norbert Weis · Weinheim, DE
Daniel Baumgart · Worms, DE

Key dates

Filing date	Apr 21, 2016
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Sep 30, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L11/282
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A cleaning device has a main part and a handle with which an operator can displace the cleaning device on a surface being cleaned, two counter-rotatable rollers being received in the main part such that the rollers come into contact with the floor being cleaned, the rollers being arranged in the main part such that they are only separated by a shared air gap and/or longitudinal gap.

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