EP 0150478 B1 19900718 - DISHWASHING MACHINE WITH SELF-CLEANING PUMP PROTECTION FILTER
Title (en)
DISHWASHING MACHINE WITH SELF-CLEANING PUMP PROTECTION FILTER
Publication
Application
Priority
IT 3400284 U 19840105
Abstract (en)
[origin: EP0150478A1] A dishwashing machine has a tub (3), a fine-mesh filter (7) disposed in the tub upstream of a circulation pump (5), and a coarse-mesh filter (8) seated within the fine-mesh filter upstream of a water discharge pump (9). The coarse-mesh filter is susceptible to clogging by coarse impurities of relatively soft consistency, necessitating frequent removal and cleaning of the filter. According to the invention, spray jet means is provided for directing a jet of water coaxially onto the coarsemesh filter for cleaning it by the disintegration of soft matter collected therein. The spray jet means may take the form of an additional opening (10) in the bottom side of a rotatable irrigation arm, or of a jet nozzle (12) fixedly mounted in a horizontal position and cooperating with a deflector (13) for directing the water jet (11) issueing from the jet nozzle onto the coarse-mesh filter.
IPC 1-7
IPC 8 full level
A47L 15/42 (2006.01)
CPC (source: EP)
A47L 15/4206 (2013.01); A47L 15/4208 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0150478 A1 19850807; EP 0150478 B1 19900718; AT E54559 T1 19900815; DE 3482759 D1 19900823; ES 283281 U 19850501; ES 283281 Y 19851216; IT 8434002 V0 19840105
DOCDB simple family (application)
EP 84116142 A 19841221; AT 84116142 T 19841221; DE 3482759 T 19841221; ES 283281 U 19841210; IT 3400284 U 19840105