Global Patent Index - EP 0904828 A3

EP 0904828 A3 2000-03-15 - High wear resistant screw, mixing shaft or other machine part for use in the building industry and related materials processing

Title (en)

High wear resistant screw, mixing shaft or other machine part for use in the building industry and related materials processing

Title (de)

Hochverschleissfeste Schnecke, Mischerwelle oder ähnliche Maschinenteile zur Verwendung in der Bauindustrie und des baustoffverarbeitenden Gewerbes

Title (fr)

Hélice, arbre ou autre pièce à haute résistance à l'usure pour machines de chantier utilisés dans l'industrie du bâtiment et des matériaux

Publication

EP 0904828 A3 (DE)

Application

EP 98118179 A

Priority

DE 29717220 U

Abstract (en)

[origin: EP0904828A2] A wear resistant worm, mixer shaft or similar machine component, for use in the building industry, comprises a metallic base material (1) with a highly wear resistant alloy (3) over the region in contact with the housing (2). The alloy consists of 0.75 pts. C, 4.3 pts. Si, 15 pts. Cr, 3.5 pts Fe, 3.1 pts B and the rest Ni. The alloy is applied by diffusion spraying, and is up to 1mm thick.

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

B01F 15/00; B28C 5/08

IPC 8 full level (invention and additional information)

B01F 7/00 (2006.01); B01F 15/00 (2006.01); B28C 5/14 (2006.01)

CPC (invention and additional information)

B01F 7/00033 (2013.01); B28C 5/142 (2013.01)

Citation (search report)

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

DE 29717220 U1 19971218; EP 0904828 A2 19990331; EP 0904828 A3 20000315

INPADOC legal status


2001-07-25 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20000916

2000-12-28 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

- Ref Legal Event Code: 8566

2000-11-22 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

2000-03-15 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2000-03-15 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI

1999-03-31 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

1999-03-31 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI