Global Patent Index - EP 1261441 A1

EP 1261441 A1 2002-12-04 - METHOD TO PRODUCE RADIATING TUBES AND RELATIVE RADIATING TUBES FOR RADIANCY HEATING LINES

Title (en)

METHOD TO PRODUCE RADIATING TUBES AND RELATIVE RADIATING TUBES FOR RADIANCY HEATING LINES

Title (de)

VERFAHREN ZUR HERSTELLUNG VON STRAHLUNGSROHREN SOWIE STRAHLUNGSROHREN FÜR STRAHLHEIZLEITUNGEN

Title (fr)

PROCEDE DE PRODUCTION DE TUBES RAYONNANTS ET DE TUBES RAYONNANTS RELATIFS DESTINE A DES CONDUITS DE CHAUFFAGE PAR RAYONNEMENT

Publication

EP 1261441 A1 (EN)

Application

EP 99974259 A

Priority

IB 9902000 W

Abstract (en)

[origin: WO0143895A1] Method to produce radiating tubes, and relative radiating tubes, for radiancy heating lines for premises (12), said radiating tubes defining a forced-circulation circuit of a thermal carrier gas fluid for heating purposes, said radiating tubes being formed by shaping from an aluminium-coated steel strip, said aluminium-coated steel strip being subjected, during one step of the production cycle of the radiating tube (10), to at least a heat treatment step made at a temperature above the melting temperature of aluminium, said heat treatment having the function of improving the intrinsic characteristics of heat emissivity of said tubes (10).

IPC 1-7 (main, further and additional classification)

B21C 37/12; B21C 37/09

IPC 8 full level (invention and additional information)

B21C 37/09 (2006.01); B21C 37/12 (2006.01)

CPC (invention and additional information)

B21C 37/123 (2013.01); B21C 37/09 (2013.01)

Citation (search report)

See references of WO 0143895A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

WO 0143895 A1 20010621; AT 260719 T 20040315; AU 1404900 A 20010625; DE 69915397 D1 20040408; DE 69915397 T2 20041111; EP 1261441 A1 20021204; EP 1261441 B1 20040303