(19)
(11) EP 0 417 656 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
06.11.1991 Bulletin 1991/45

(43) Date of publication A2:
20.03.1991 Bulletin 1991/12

(21) Application number: 90117255.1

(22) Date of filing: 07.09.1990
(51) International Patent Classification (IPC)5: H01B 7/34
(84) Designated Contracting States:
BE DE FR GB NL

(30) Priority: 13.09.1989 IT 4169389

(71) Applicant: TUBIGOMMA DEREGIBUS S.r.l.
I-35030 Saccolongo (Prov. of Padova) (IT)

(72) Inventor:
  • Deregibus, Alfio
    I-35100 Padova (IT)

(74) Representative: Alagem Modiano, Lara S. et al
c/o Modiano & Associati S.r.l. Via Meravigli 16
20123 Milano
20123 Milano (IT)


(56) References cited: : 
   
       


    (54) Rubber tube for thermally insulating electric cables


    (57) The present invention relates to a rubber tube for containing and insulating electric connection cables in manufacturing plant in the iron and steel industry, such as induction furnaces. The tube comprises a rubber band (3) wrapped on a covering layer (2) which has a contrasting color and forms a raised helical ridge. A containment band (4), made of fabric, is wrapped in a helix on the covering layer (2) between the edges of said rubber band (3), on which it is superimposed. The rubber and fabric bands (3,4) are welded to one another and to the rest of the structure by means of the known final operation of vulcanizing the tube.







    Search report