Global Patent Index - EP 3235939 A1

EP 3235939 A1 20171025 - METHOD FOR THE DETECTION OF FOAM IN A LAUNDRY WASHING MACHINE

Title (en)

METHOD FOR THE DETECTION OF FOAM IN A LAUNDRY WASHING MACHINE

Title (de)

VERFAHREN ZUR DETEKTION VON SCHAUM IN EINER WÄSCHEWASCHMASCHINE

Title (fr)

PROCÉDÉ POUR LA DÉTECTION DE MOUSSE DANS UNE MACHINE À LAVER LE LINGE

Publication

EP 3235939 A1 20171025 (EN)

Application

EP 16166319 A 20160421

Priority

EP 16166319 A 20160421

Abstract (en)

The present invention relates to a method for operating a laundry washing machine (1; 200) having washing tub (3) containing a washing drum (4) and a heating device (20) for heating liquid in the washing tub (3). The method comprises the steps of: introducing a quantity of water and a quantity of detergent in the washing tub (3) to form a washing liquid; heating the washing liquid; determining the temperature increasing speed (TS); comparing the determined temperature increasing speed (TS) with a threshold value (TV) and if the determined temperature increasing speed (TS) is above the threshold value (TV) establishing the presence of foam.

IPC 8 full level

A47L 15/42 (2006.01); D06F 34/22 (2020.01); D06F 39/00 (2006.01); D06F 39/06 (2006.01)

CPC (source: CN EP US)

D06F 33/47 (2020.02 - EP US); D06F 34/22 (2020.02 - CN EP US); D06F 39/06 (2013.01 - CN EP US); D06F 39/083 (2013.01 - CN EP US); D06F 2103/16 (2020.02 - CN EP US); D06F 2103/18 (2020.02 - EP US); D06F 2103/20 (2020.02 - CN EP US); D06F 2105/02 (2020.02 - EP US); D06F 2105/10 (2020.02 - EP US); D06F 2105/46 (2020.02 - EP US); D06F 2105/52 (2020.02 - EP US); D06F 2105/58 (2020.02 - CN EP US); D06F 2105/60 (2020.02 - CN EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL 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 RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3235939 A1 20171025; EP 3235939 B1 20210609; CN 107385769 A 20171124; CN 107385769 B 20210629

DOCDB simple family (application)

EP 16166319 A 20160421; CN 201710197503 A 20170329