EP 0380524 B1 19920805 - DEVICE FOR CLEANING SURFACES
Title (en)
DEVICE FOR CLEANING SURFACES
Publication
Application
Priority
AT 271487 A 19871014
Abstract (en)
[origin: WO8903191A1] A device for cleaning surfaces has a suction head (6) with two concentric annular counterrotating brushes (24) on the side facing the surfaces to be cleaned. A cleaning fluid is sprayed through a duct (9) into the gap between the two annular brushes and then sucked through a suction duct (5), together with the impurities, into a tank (2) for the cleaning liquid (3). The rotating annular brushes (24) are driven by a hydraulic motor housed in the suction head (6), which is fed by ducts (19, 20). This suction head is also suitable for cleaning vertical or overhead surfaces.
IPC 1-7
IPC 8 full level
A47L 11/30 (2006.01)
CPC (source: EP)
A47L 11/305 (2013.01); A47L 11/4016 (2013.01); A47L 11/4027 (2013.01); A47L 11/4038 (2013.01); A47L 11/4044 (2013.01); A47L 11/4069 (2013.01); A47L 11/4088 (2013.01)
Designated contracting state (EPC)
BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8903191 A1 19890420; AT 388863 B 19890911; AT A271487 A 19890215; DE 3873543 D1 19920910; EP 0380524 A1 19900808; EP 0380524 B1 19920805
DOCDB simple family (application)
AT 8800073 W 19880928; AT 271487 A 19871014; DE 3873543 T 19880928; EP 88908100 A 19880928