EP 2451332 B1 20181114 - SUCTION APPARATUS FOR CLEANING PURPOSES
Title (en)
SUCTION APPARATUS FOR CLEANING PURPOSES
Title (de)
SAUGGERÄT FÜR REINIGUNGSZWECKE
Title (fr)
DISPOSITIF D'ASPIRATION À DES FINS DE NETTOYAGE
Publication
Application
Priority
EP 2009058574 W 20090707
Abstract (en)
[origin: WO2011003441A1] A suction apparatus (10; 170) for cleaning purposes, the suction apparatus having a dirt-collecting container (24) with a suction inlet (26) and a suction outlet (28) on which a filter (34) is held, a suction unit (44) for charging the dirt-collecting container (24) with negative pressure, an extraction chamber (102) between the suction unit (44) and the filter (34) with an external air inlet (112) via which external air can flow into the suction chamber (102) for acting upon the filter (34) on the clean space side, a valve device (64; 116; 128; 138; 188) with a valve seat (66; 132) forming the external air inlet (112) and a valve body (68; 186) which is movable relative to said valve seat and, in a closed position, bears in a sealing manner against the valve seat (66; 132) and, in an open position, opens up the valve seat (66; 132), and an actuating member (76; 172), by means of the actuation of which the valve body (68; 186) can be transferred from the closed position into the open position. In order to obtain a better suction result, it is proposed that the suction apparatus (10; 170) comprises an energy storage device (108; 118; 136; 140) to which energy which is to be stored can be supplied by actuation of the actuating member (76; 172) and from which stored energy can be released in order to transfer the valve body (68; 186) from the closed position into the open position.
IPC 8 full level
A47L 9/20 (2006.01)
CPC (source: EP US)
A47L 9/20 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2011003441 A1 20110113; CN 102481079 A 20120530; CN 102481079 B 20140910; EP 2451332 A1 20120516; EP 2451332 B1 20181114; ES 2709904 T3 20190422; US 2012137467 A1 20120607; US 8474093 B2 20130702
DOCDB simple family (application)
EP 2009058574 W 20090707; CN 200980160349 A 20090707; EP 09780233 A 20090707; ES 09780233 T 20090707; US 201113310993 A 20111205