Global Patent Index - EP 0976442 A2

EP 0976442 A2 2000-02-02 - Mixing device

Title (en)

Mixing device

Title (de)

Mischvorrichtung

Title (fr)

Dispositif de mélange

Publication

EP 0976442 A2 (DE)

Application

EP 99114782 A

Priority

  • DE 29813742 U
  • DE 29820936 U

Abstract (en)

Tungsten carbide is used as a wear resistant material, which is applied to the blade by welding. The rotor arm (24) projects radially from a rotor shaft (23) and holds a carrier (36) on which the mixer blade (38) is fitted. The carrier and blade are angled relative to the rotor arm axis. All items are joined demountably through bolts (34, 42, 44) for adjustment and replacement. The rotor arm is also protected by a tungsten carbide coated sleeve (40). A welded coating is preferred to a solid tungsten carbide part to retain the flexibility of the base metal, necessary to cope with shock loading.

Abstract (de)

Die Erfindung betrifft eine Mischvorrichtung mit einer Mischtrommel und einer an den Enden der Mischtrommel gelagerten Mischerwelle, wobei die Mischerwelle sich radial nach außen erstreckende Schaufelarme aufweist, an deren Enden bis nahe zur Mischtrommelwand reichende Schaufelblätter angeordnet sind. Erfindungsgemäß weisen die Schaufelblätter einen Verschleißschutz in Form einer Hartauftragsschweißung aus einem verschleißfesten Material auf. <IMAGE>

IPC 1-7 (main, further and additional classification)

B01F 7/04

IPC 8 full level (invention and additional information)

B01F 7/00 (2006.01); B01F 7/04 (2006.01); B01F 15/00 (2006.01)

CPC (invention and additional information)

B01F 7/00025 (2013.01); B01F 7/04 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0976442 A2 20000202; EP 0976442 A3 20020605

INPADOC legal status


2004-06-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20030930

2003-05-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030318

2003-02-26 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2003-01-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20021125

2002-06-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-06-05 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

2002-05-29 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7B 01F 7/04 A, 7B 01F 15/00 B

2000-02-02 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-02-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI