EP 0232990 A1 19870819 - Heating appliance.
Title (en)
Heating appliance.
Title (de)
Heizungsgerät.
Title (fr)
Appareil de chauffage.
Publication
Application
Priority
DE 3601457 A 19860120
Abstract (en)
To obtain more uniform heating of a radiator tube (2), heated internally by gases from a gas burner (4), the tube is provided, in a first longitudinal portion (11), with a multi-walled construction wherein an inner tube (7, 10) is disposed in the portion (11) co-axially to and with radial spacing from an outer tube (8), and only the inner tube (7, 10) is acted upon by heating gases from the burner (4), there being a continuous gap (9) formed between the inner tube (7, 10) and outer tube (8) that opens freely into the outside air at one end.
IPC 1-7
IPC 8 full level
F24D 5/08 (2006.01)
CPC (source: EP)
F24D 5/08 (2013.01)
Citation (search report)
- [XD] US 4529123 A 19850716 - JOHNSON ARTHUR C W [US]
- [Y] EP 0164221 A1 19851211 - COLT INT HOLDINGS [CH]
- [A] EP 0070360 A2 19830126 - PHOENIX BURNERS [GB], et al
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL
DOCDB simple family (publication)
EP 0232990 A1 19870819; EP 0232990 B1 19900509; AT E52609 T1 19900515; DE 3601457 A1 19870723; DE 3762683 D1 19900613
DOCDB simple family (application)
EP 87300461 A 19870120; AT 87300461 T 19870120; DE 3601457 A 19860120; DE 3762683 T 19870120