Patent · US Expired

Vacuum cleaner

US7096902B2 · kind B2 · utility

1Cited by

14References

20Claims

0Family size

Assignee

BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

Erich Bott · Hollstadt, DE
Roland Illig · Bad Neustadt an der Saale, DE
Heinrich Komesker · Wuppertal, DE

Key dates

Filing date	Dec 29, 2003
Grant date	Aug 29, 2006
Priority date	—
Expiry date	Dec 29, 2023

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47L9/009
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A vacuum cleaner includes a housing and at least one running roller operatively connected to the housing. The roller has a hub, a running ring, a wall connecting the running ring and the hub. The wall has two side surfaces and a curved cross-section between the running ring and the hub. The roller has at least one reinforcing rib extending at least from one of the two side surfaces of the wall and being in contact with neither the hub nor the running ring in a non-loaded state of the running roller. The roller forms an elastic caster with a nave and a bearing race. The nave and the bearing race are connected to another by an S or Z-shaped curved wall. Ribs are provided for reinforcing the wall or the nave.

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