EP 0163838 A1 19851211 - Water heater construction.
Title (en)
Water heater construction.
Title (de)
Wassererhitzer.
Title (fr)
Construction de chauffage-eau.
Publication
Application
Priority
US 60852084 A 19840509
Abstract (en)
A water heater (10) having a tank wall (12) and a bottom head (14) welded to the wall to provide a liquid tight chamber (16) therein. The bottom head has an upwardly directed circular flange (32) with a central opening therein. The flange (32) is connected to a flue tube in a unique manner. The connection between the flange (32) on the lower head and the flue tube (28) is accomplished by press-fitting the flange into the end of the tube and then welding the two parts together by a weld between the end of the tube and the outer surface of the flange (32).
IPC 1-7
IPC 8 full level
F23J 13/04 (2006.01); F24H 1/20 (2006.01); F24H 1/24 (2006.01); F24H 9/00 (2006.01); F24H 9/14 (2006.01)
CPC (source: EP)
F24H 1/205 (2013.01); F24H 9/14 (2013.01)
Citation (search report)
- US 3124108 A 19640310
- US 4372290 A 19830208 - VISOS CHARLES D, et al
- US 4292950 A 19811006 - SCHOSSOW GEORGE W
- EP 0087026 A1 19830831 - VAILLANT JOH GMBH & CO [DE]
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0163838 A1 19851211; EP 0163838 B1 19870729; AT E28700 T1 19870815; AU 3958985 A 19851114; AU 576558 B2 19880901; DE 3560406 D1 19870903; JP H0581812 B2 19931116; JP S6122153 A 19860130
DOCDB simple family (application)
EP 85103704 A 19850327; AT 85103704 T 19850327; AU 3958985 A 19850306; DE 3560406 T 19850327; JP 7913985 A 19850413