EP 1273256 A2 20030108 - Vacuum cleaner
Title (en)
Vacuum cleaner
Title (de)
Staubsauger
Title (fr)
Aspirateur
Publication
Application
Priority
GB 0116539 A 20010705
Abstract (en)
A vacuum cleaner comprises a fan unit having a radial flow impeller (15) and a motor (13) for rotating the impeller (15) to cause an airflow along a flow path of the cleaner. The impeller (15) comprises a plurality of blades (16) extending radially from an axially extending central hollow region (17) having an air inlet at one axial end thereof. The air flow path through the cleaner has a substantially uniform cross-sectional area along a substantial part of its length, and comprises a portion (22) which leads directly to the impeller (15) and has an outlet end directly aligned with the air inlet of the impeller (15). <??>The portion (22) of the airflow path leading to the impeller (15) may extend through an insert (20) mounted inside the fan chamber (19) of a conventional vacuum cleaner. <??>The vacuum cleaner has an increased suction power compared with conventional vacuum cleaners having the same motor power, because the air is communicated directly to the impeller (15) through a duct having a substantially uniform cross-sectional area along a substantial part of its length. <IMAGE>
IPC 1-7
IPC 8 full level
A47L 5/22 (2006.01)
CPC (source: EP)
A47L 5/22 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1273256 A2 20030108; EP 1273256 A3 20040114; EP 1273256 B1 20100106; AT E454077 T1 20100115; DE 60234981 D1 20100225; ES 2338763 T3 20100512; GB 0116539 D0 20010829; GB 2377163 A 20030108; GB 2377163 B 20041215
DOCDB simple family (application)
EP 02254643 A 20020702; AT 02254643 T 20020702; DE 60234981 T 20020702; ES 02254643 T 20020702; GB 0116539 A 20010705