EP 1097666 A2 20010509 - A dustproof vacuum cleaner
Title (en)
A dustproof vacuum cleaner
Title (de)
Staubdichter Staubsauger
Title (fr)
Aspirateur étanche à la poussière
Publication
Application
Priority
IT TO990957 A 19991108
Abstract (en)
In a vacuum cleaner, the air is not expelled into the environment but is recirculated into the suction region; this prevents the dispersal of any traces of dust into the environment. The vacuum cleaner has advantages with regard to power, energy, and noise and enables the air to be treated with physical/chemical aids. A "robot" structure benefits particularly from this innovation. <IMAGE>
IPC 1-7
IPC 8 full level
A47L 5/14 (2006.01); A47L 7/04 (2006.01); A47L 9/08 (2006.01); A47L 9/22 (2006.01)
CPC (source: EP)
A47L 5/14 (2013.01); A47L 7/04 (2013.01); A47L 9/08 (2013.01)
Citation (applicant)
- DE 19530976 A1 19970227 - RECKTENWALD PAUL [DE]
- DE 3723695 A1 19890202 - HOELTER HEINZ [DE]
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 1097666 A2 20010509; EP 1097666 A3 20041027; EP 1097666 B1 20090401; DE 60041903 D1 20090514; IT 1308868 B1 20020111; IT TO990957 A1 20000208
DOCDB simple family (application)
EP 00124407 A 20001108; DE 60041903 T 20001108; IT TO990957 A 19991108