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Current content: 159 823 134 patent documents

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143 307 new documents added

1 003 170 documents amended

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EP 0905456 A3 20010411 - Three-pass boiler

Title (en)

Three-pass boiler

Title (de)

Dreizugheizkessel

Title (fr)

Chaudière à trois passages

Publication

EP 0905456 A3 20010411 (DE)

Application

EP 98118049 A 19980923

Priority

DE 19742783 A 19970927
DE 29812566 U 19980715

Abstract (en)

[origin: EP0905456A2] In the free space between the ribs (2) a combustion chamber casing (5) backwardly limited by a wall forms the first draft (I). The inner space (5') of the casing is connected to the second draft (II). The second draft evolves from a burner-side overflow chamber (6) into a third draft leading to a flue gas collection chamber (7).

IPC 1-7

F24H 1/26

IPC 8 full level

F24H 1/26 (2006.01)

CPC (source: EP)

F24H 1/263 (2013.01)

Citation (search report)

[A] EP 0684431 A1 19951129 - BELLELI SPA [IT]
[A] FR 1571097 A 19690613
[A] US 4433645 A 19840228 - SMITH HARRIS W [US]

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 (publication)

EP 0905456 A2 19990331; EP 0905456 A3 20010411

DOCDB simple family (application)

EP 98118049 A 19980923