EP 1365057 A1 20031126 - Washing and drying machine with impurity removal process

Title (en)

Washing and drying machine with impurity removal process

Title (de)

Maschine zum Waschen und Trocknen mit Verfahren zur Entfernung von Verunreinigungen

Title (fr)

Machine à laver et à sécher avec un procédé pour l'élimination d'impuretés

Publication

EP 1365057 A1 20031126 (EN)

Application

EP 02256241 A 20020910

Priority

KR 20020028078 A 20020521

Abstract (en)

A washing and drying machine has a washing tub consisting of a rotatable tub (404) and a fixed tub (402). Drying can be performed by circulating air heated by a drying heater through the washing tub for absorbing moisture contained in laundry, and by discharging the moisture-laden air to the outside. When the number of the performed drying processes exceeds a preset reference value (S306), the washing machine performs an impurity removing process to remove dried impurities from the inside surface of the fixed tub. The impurity removing process involves filling completely the tub with water (S310), agitating the rotatable tub (S312) and emptying the machine of water (S314). Alternatively, the accumulated drying time is measured, and the impurity removing process performed when a threshold is exceeded. <IMAGE>

IPC 1-7

D06F 58/22; D06F 33/02

IPC 8 full level

D06F 25/00 (2006.01); D06F 33/02 (2006.01); D06F 35/00 (2006.01); D06F 58/22 (2006.01); D06F 58/45 (2020.01)

CPC (source: EP US)

D06F 58/45 (2020.02 - EP US); D06F 25/00 (2013.01 - EP US); D06F 2101/00 (2020.02 - EP US); D06F 2103/18 (2020.02 - EP US); D06F 2105/34 (2020.02 - EP US); D06F 2105/58 (2020.02 - EP US)

Citation (search report)

[YA] DE 19742282 C1 19990211 - MIELE & CIE [DE]
[A] GB 972411 A 19641014 - BORG WARNER
[A] EP 1055767 A1 20001129 - BSH BOSCH SIEMENS HAUSGERAETE [DE]
[A] US 5497563 A 19960312 - MAYFIELD ALFRED B [US]
[Y] PATENT ABSTRACTS OF JAPAN vol. 017, no. 011 (C - 1015) 8 January 1993 (1993-01-08)
[Y] PATENT ABSTRACTS OF JAPAN vol. 016, no. 351 (C - 0968) 29 July 1992 (1992-07-29)
[A] PATENT ABSTRACTS OF JAPAN vol. 014, no. 310 (C - 0736) 4 July 1990 (1990-07-04)

Designated contracting state (EPC)

DE GB IT

DOCDB simple family (publication)

EP 1365057 A1 20031126; EP 1365057 B1 20061108; DE 60215920 D1 20061221; DE 60215920 T2 20070913; KR 100468918 B1 20050202; KR 20030090085 A 20031128; RU 2221094 C1 20040110

DOCDB simple family (application)

EP 02256241 A 20020910; DE 60215920 T 20020910; KR 20020028078 A 20020521; RU 2002121935 A 20020809