EP 0398853 A1 19901122 - An improved method for cleaning ventilation ducts.
Title (en)
An improved method for cleaning ventilation ducts.
Title (de)
Verfahren zur Reinigung von Ventilationsschächten.
Title (fr)
Méthode pour le nettoyage des conduites de ventilation.
Publication
Application
Priority
SE 8901773 A 19890518
Abstract (en)
A method for cleaning of ventilation ducts. This method is using vacuum for creating a strong air stream of high velocity which is used for passing a cleaning element through the duct. This cleaning element could comprise a brush or a ball of foam rubber or like, which can adapt its shape to the cross section of the duct. When passing through the duct the element sweeps the inner surfaces of the duct and then loosens dirt adhering thereto. The method is completed with a treatment of the walls with a desinfactant and/or water stream which may contain a grease solvent.
IPC 1-7
IPC 8 full level
B08B 5/04 (2006.01); B08B 9/04 (2006.01); B08B 9/055 (2006.01)
CPC (source: EP)
B08B 5/04 (2013.01); B08B 9/055 (2013.01); B08B 9/0552 (2013.01)
Citation (search report)
- [X] US 2906650 A 19590929 - WHEATON ESTEL O
- [A] US 4792363 A 19881220 - FRANKLIN JR SMEAD P [US], et al
- [A] US 2055287 A 19360922 - CARLO GIRAUD
- [A] DE 819477 C 19511031 - OLEK KARL, et al
- [A] DE 3529310 A1 19870305 - HOELTER HEINZ [DE]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0398853 A1 19901122; CA 2015631 A1 19901118; FI 902078 A0 19900425; SE 8901773 D0 19890518; SE 8901773 L 19901119
DOCDB simple family (application)
EP 90850157 A 19900425; CA 2015631 A 19900427; FI 902078 A 19900425; SE 8901773 A 19890518