EP 0578239 A3 19940427 -
Publication
Application
Priority
- DE 4222427 A 19920709
- DE 4321427 A 19930628
Abstract (en)
[origin: EP0578239A2] When pressure is exerted on granular material in double roller machines, the surfaces of the rollers are subject to a high level of load, one of the effects of which is a considerable amount of wear. An attempt is made to counteract this wear by changing the structure and coating of the roller surface subject to the wear. The invention proposes to embed in the roller body (81) a multiplicity of wear-resistant pin-shaped pieces (2) of material in corresponding recesses which have outwardly curved surfaces (4) in their deepest regions. <IMAGE>
IPC 1-7
IPC 8 full level
B02C 4/30 (2006.01)
CPC (source: EP)
B02C 4/305 (2013.01)
Citation (search report)
- [A] EP 0443195 A1 19910828 - KLOECKNER HUMBOLDT DEUTZ AG [DE]
- [A] US 2588900 A 19520311 - WARSMITH HARRY R
- [A] GB 239723 A 19250917 - GEORGE WEST MILLAR, et al
Designated contracting state (EPC)
AT CH DE DK ES FR GB LI NL SE
DOCDB simple family (publication)
EP 0578239 A2 19940112; EP 0578239 A3 19940427; EP 0578239 B1 19960918; AT E142909 T1 19961015; DE 4321427 A1 19940113; DE 59303829 D1 19961024; DK 0578239 T3 19961007
DOCDB simple family (application)
EP 93110916 A 19930708; AT 93110916 T 19930708; DE 4321427 A 19930628; DE 59303829 T 19930708; DK 93110916 T 19930708