Global Patent Index - EP 4119718 A1

EP 4119718 A1 20230118 - MACHINE FOR WASHING LAUNDRY EQUIPPED WITH IMPROVED MEANS FOR PREVENTING BACKFLOW OF WATER

Title (en)

MACHINE FOR WASHING LAUNDRY EQUIPPED WITH IMPROVED MEANS FOR PREVENTING BACKFLOW OF WATER

Title (de)

WÄSCHEWASCHMASCHINE MIT VERBESSERTEN MITTELN ZUM VERHINDERN DES RÜCKFLUSSES VON WASSER

Title (fr)

MACHINE À LAVER LE LINGE ÉQUIPÉE DE MOYENS AMÉLIORÉS POUR EMPÊCHER LE REFLUX D'EAU

Publication

EP 4119718 A1 20230118 (EN)

Application

EP 21185451 A 20210713

Priority

EP 21185451 A 20210713

Abstract (en)

The present disclosure refers to a washing machine (1) configured for washing laundry, the washing machine (1) comprising a tub (2) suitable for collecting water, a water supply unit (3) configured to feed fresh water from a water supply network to the tub (2), a washing agents dispenser (4) configured to feed at least one washing agent, in particular a detergent, to the tub (2), the washing agents dispenser (4) being connected downstream the water supply unit (3) and at least one pump (5) configured to pump out the water from the tub (2) to a drainage system (20) outside the washing machine (1). The water supply unit (3) comprises a water draining device (10) configured to drain a residual water to a collection vessel or hose (6) operatively connected to the tub (2) and to the exterior of the washing machine (1). The water draining device (10) comprises at least an auxiliary conduit (11) comprising an outlet section (11e) feeding the residual water to the collection vessel or hose (6). The auxiliary conduit (11) and the collection vessel or hose (6) are arranged in a predetermined spatial configuration such that a back-siphonage mitigation air break (S) is present between an inlet opening (6a) of the collection vessel or hose (6) and the outlet section (11e) of the auxiliary conduit (11), the back siphonage mitigation air break (S) being configured to mitigate back-siphonage from said drainage system (20) by causing water that may flow back from the drainage system (20) to the collection vessel or hose (6) and/or that may reach an overflow level within said tub (2) to come out at the back-siphonage mitigation air break (S) without climbing back to the auxiliary conduit (11).

IPC 8 full level

D06F 39/08 (2006.01); A47L 15/42 (2006.01)

CPC (source: EP)

D06F 39/081 (2013.01); A47L 15/4217 (2013.01); D06F 39/08 (2013.01); D06F 39/083 (2013.01); D06F 39/085 (2013.01)

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

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4119718 A1 20230118; EP 4119718 B1 20240320

DOCDB simple family (application)

EP 21185451 A 20210713