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Current content: 156 978 933 patent documents

This week's update (05/07/2024 12:00 CET):

169 914 new documents added

2 331 667 documents amended

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EP 0177723 B1 19880309 - RADIAL VENTILATOR

Title (en)

RADIAL VENTILATOR

Publication

EP 0177723 B1 19880309 (DE)

Application

EP 85110471 A 19850820

Priority

DE 3432503 A 19840904

Abstract (en)

[origin: EP0177723A1] 1. Radial fan with a spiral housing surrouding an impeller, at the outlet side of which there is connected an air distribution housing provided with guide vanes, characterized in that the guide vanes (31, 32, 33) have the form logarithmic spirals and the air distribution housing (3) is composed substantially of flat and/or if need be circular wall parts (Fig. 1).

IPC 1-7

F04D 29/44

IPC 8 full level

F04D 29/44 (2006.01)

CPC (source: EP)

F04D 29/441 (2013.01)

Designated contracting state (EPC)

BE CH DE FR IT LI

DOCDB simple family (publication)

EP 0177723 A1 19860416; EP 0177723 B1 19880309; DE 3432503 A1 19860313; DE 3561836 D1 19880414

DOCDB simple family (application)

EP 85110471 A 19850820; DE 3432503 A 19840904; DE 3561836 T 19850820