(19)
(11) EP 0 409 393 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.01.1992 Bulletin 1992/03

(43) Date of publication A2:
23.01.1991 Bulletin 1991/04

(21) Application number: 90305912.9

(22) Date of filing: 31.05.1990
(51) International Patent Classification (IPC)5: H05B 3/36, H05B 3/14, H01C 7/02
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB GR IT LI LU NL SE

(30) Priority: 17.07.1989 AU 5310/89

(71) Applicant: METAL MANUFACTURES LIMITED
Pymble, New South Wales 2073 (AU)

(72) Inventors:
  • Wild, Michelle
    North Narrabeen, 2101, New South Wales (AU)
  • Vindin, Trevor
    Beecroft, 2119 (AU)
  • Halim, Erich
    Peakhurst 2210, New South Wales (AU)

(74) Representative: Senior, Alan Murray et al
J.A. KEMP & CO., 14 South Square, Gray's Inn
London WC1R 5LX
London WC1R 5LX (GB)


(56) References cited: : 
   
       


    (54) Heating mats


    (57) A heating mat having a flat, constant temperature heating element. The heating element comprises a flat sheet consisting of a layer of composite graphite carbon and polyethylene glycol sandwiched between two sheets of plastic film. One of said sheets of plastic film having a strip conductor for connecting an electric current across the layer of composite graphite carbon and polyethylene glycol. The heating element is encapsulated by a cover to form the mat.







    Search report