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Brevet : EP1625304 - POMPE CENTRIFUGE MULTI-ETAGEE
Titre
POMPE CENTRIFUGE MULTI-ETAGEE
N° et date de publication de la demande
EP1625304 - 15/02/2006
Type de la demande
A1
N° et date de dépôt
EP04731592.4 - 07/05/2004
N° et date de priorité
DE10322382 - 17/05/2003
Classification CIB
F04D 29/24 ; F04D 1/06 ; F04D 29/04 ; F04D 29/043 ; F04D 29/047
Classification CPC
F04D 1/063 ; F04D 29/043 ; F04D 29/047 ; F04D 29/043 ; F04D 1/063 ; F04D 29/047
Famille de brevets
US2006127232A1 ; DE10322382A1 ; EP1625304A1 ; JP2006528306A ; WO2004109117A1 ; ATE339616T1 ; DK1625304T3 ; ES2271885T3
Abrégé
A multistage centrifugal pump in which each stage includes a one-piece or multi-piece housing and an impeller disposed therein. The pump stages are arranged between an inlet end member and an outlet end member and retained therebetween by connectors so as to be connected to a flow-guiding system. All impellers are positioned on a single pump shaft that is supported by at least two pump bearings. One end of the pump shaft is provided with a device for receiving a connector of a drive unit, and outer support members are disposed at mounting points adjacent the end members in order to mount the centrifugal pump in its installation location. The pump shaft ( 3 ) is supported by two two pump bearings ( 11, 12 ), with the maximum distance (LL) between confronting sides of the two pump bearings ( 11, 12 ) being less than or equal to a minimum structural stage height (LM) multiplied by the number of pump stages ( 2.1 - 2.5 ) minus 1.
INTERVENANTS
Déposant
KSB AG (KSB AKTIENGESELLSCHAFT) - DE
Titulaire
KSB Aktiengesellschaft
Inventeur
URBAN JOERG (URBAN, JOERG) - DE
KOCHANOWSKI WOLFGANG (KOCHANOWSKI, WOLFGANG) - DE
BRECHT BERNHARD (BRECHT, BERNHARD) - DE
SCHARPF STEPHAN (SCHARPF, STEPHAN) - DE
Mandataire
DOGIO Patents BV - 's-Gravelandseweg 21 - 1211 BN HILVERSUM - NL
STATUT EN FRANCE : Déchu
Délivrance
13/09/2006
Remise de traduction du brevet
13/04/2007 (BOPI 2007-15)
Date de constatation de déchéance
-
05/01/2024 (BOPI 2024-05)
Dernière annuité payée
20/05/2022
Quantième- N° de l'annuité payée
19
Date de paiement de la prochaine annuité
31/05/2023
