(19)
(11) EP 0 352 499 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.07.1990 Bulletin 1990/29

(43) Date of publication A2:
31.01.1990 Bulletin 1990/05

(21) Application number: 89111969.5

(22) Date of filing: 30.06.1989
(51) International Patent Classification (IPC)5: D06F 39/04, D06F 58/26
(84) Designated Contracting States:
DE FR GB IT NL SE

(30) Priority: 25.07.1988 IT 4575088

(71) Applicant: INDUSTRIE ZANUSSI S.p.A.
I-33170 Pordenone (IT)

(72) Inventor:
  • Durazzani, Piero
    I-33080 Porcia (Pordenone) (IT)

(74) Representative: Grosse, Wolfgang, Dipl.-Ing. et al
Patentanwälte Herrmann-Trentepohl, Kirschner Grosse, Bockhorni & Partner Forstenrieder Allee 59
81476 München
81476 München (DE)


(56) References cited: : 
   
       


    (54) A heating device for washing and/or drying machines for laundry


    (57) A heating device for washing and/or drying machines for laundry, com­prising a parallelepiped plate (4) made of electrically insulating material having applied to one surface thereof, by the silk screen process or simi­lar procedures, at least one electrical resistor (5) based on electrically conductive metal powders mixed with glass frit, the resistor having a wavy or other pattern.
    The plate (4) is placed inside the vessel of the washing or dry­ing machine for laundry and the corresponding terminals (6, 7) of the resistor (5) are then connected with the power supply network of the machine.
    One thus obtains an elevated heat radiating capacity of the plate (4) adapted to effect rapid heating of the washing solution or the drying air of the machine in question.







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