Global Patent Index - EP 0728523 B1

EP 0728523 B1 2000-03-08 - Roller, method for manufacturing a roller, and material bed roller mill

Title (en)

Roller, method for manufacturing a roller, and material bed roller mill

Title (de)

Walze, Verfahren zur Herstellung einer Walze sowie Gutbettwalzenmühle

Title (fr)

Cylindre, procédé pour la fabrication d'un cylindre et broyeur à cylindres à lit de matière

Publication

EP 0728523 B1 (DE)

Application

EP 95120153 A

Priority

DE 19506600 A

Abstract (en)

[origin: EP0728523A1] The roller is for a mill with two contra-rotating rolls (2) pressed to each other at high pressure. It includes a roll body with shaped anti-abrasion armour (8) having hard material strips (9) projecting outwards and recesses (10). The armour has negative profiling from the outside, in the form of grooves (12) in which the particles of material are pressed tightly. The strips (9) of hard material are only welded to the web-like profile projections (13) bounding the grooves. The grooves have a depth-width ratio of 0.4-0.75. The depth is formed from the sum of the radial web height of the profile projection and the material height of the hard strips.

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

B02C 4/30

IPC 8 full level (invention and additional information)

B02C 4/30 (2006.01)

CPC (invention and additional information)

B02C 4/305 (2013.01); Y10S 428/906 (2013.01); Y10T 29/49544 (2013.01); Y10T 29/49549 (2013.01); Y10T 29/49554 (2013.01); Y10T 29/4956 (2013.01); Y10T 428/12389 (2013.01); Y10T 428/12396 (2013.01); Y10T 428/12493 (2013.01); Y10T 428/12993 (2013.01); Y10T 428/2457 (2013.01); Y10T 428/24983 (2013.01); Y10T 428/25 (2013.01); Y10T 428/2973 (2013.01); Y10T 428/2978 (2013.01)

Designated contracting state (EPC)

DE ES FR IT

EPO simple patent family

EP 0728523 A1 19960828; EP 0728523 B1 20000308; AU 4222296 A 19960905; AU 690788 B2 19980430; BR 9600808 A 19971223; CA 2166859 A1 19960825; DE 19506600 A1 19960829; ES 2143582 T3 20000516; US 5902685 A 19990511; ZA 9600867 B 19960913

INPADOC legal status


2005-12-20 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20051220

2004-05-16 [REG ES FD2A] ANNOUNCEMENT OF LAPSE IN SPAIN

- Effective date: 20020112

2001-12-21 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20011221

2001-10-02 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20011002

2001-02-21 [26N] NO OPPOSITION FILED

2000-06-02 [ET] FR: TRANSLATION FILED

2000-05-19 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: MODIANO & ASSOCIATI S.R.L.

2000-05-16 [REG ES FG2A] DEFINITIVE PROTECTION

- Document: ES 2143582 T3

2000-04-13 [REF] CORRESPONDS TO:

- Document: DE 59507959 20000413

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE ES FR IT

2000-03-08 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

- Effective date: 20000308

1999-09-01 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990715

1996-10-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19960801

1996-08-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR IT