Patent · US Active

Vacuum cleaner

US8943644B2 · kind B2 · utility

1Cited by

0References

17Claims

0Family size

Assignee

AB Electrolux · SE

Inventors

Tommy Andersson · Sundbyberg, SE
Magnus Wennerström · Säter, SE
Henrik Nygren · Bromma, SE
Gunnar Lundmark

Key dates

Filing date	Nov 5, 2009
Grant date	Feb 3, 2015
Priority date	—
Expiry date	Jan 19, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D45/16
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present disclosure relates to a vacuum cleaner comprising an electric motor 3 and a blower producing an air flow through the vacuum cleaner. The electric motor and the blower are placed on a common vertical axis 17. A separator unit 13 is placed laterally with respect to the common axis of the motor and the blower. A bent conduit 19 connects the blower with the separator unit, and one end 21 of the conduit encloses the common vertical axis. The conduit comprises a portion located along the common axis 17 having a double wall forming a closed air pocket 23. This provides damping of noise emitted by the blower/motor and which propagates in the opposite direction of the air flow.

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