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Current content: 159 515 718 patent documents

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1 078 520 documents amended

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EP 0179047 A3 19870121 - BALL MILL

Title (en)

BALL MILL

Publication

EP 0179047 A3 19870121 (DE)

Application

EP 85890252 A 19851009

Priority

AT 328784 A 19841015

Abstract (en)

[origin: EP0179047A2] The rotatable drum of a cylindrical ball mill has an inner cladding formed by armour plates (1) and bearing circular segment-shaped grooves (2) running in the circumferential direction. The radius (5) of the groove cross-section is greater than the radius (4) of the largest milling ball (3).

IPC 1-7

B02C 17/22

IPC 8 full level

B02C 17/22 (2006.01)

CPC (source: EP)

B02C 17/22 (2013.01)

Citation (search report)

[X] US 1333946 A 19200316 - WARREN TRAVELL
[AD] AT 283092 B 19700727 - BOEHLER & CO AG GEB

Designated contracting state (EPC)

BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0179047 A2 19860423; EP 0179047 A3 19870121; AT 380410 B 19860526; AT A328784 A 19851015; BR 8505073 A 19860729; ES 547830 A0 19860901; ES 8608929 A1 19860901; IN 163069 B 19880806; JP S6197048 A 19860515

DOCDB simple family (application)

EP 85890252 A 19851009; AT 328784 A 19841015; BR 8505073 A 19851014; ES 547830 A 19851014; IN 671CA1985 A 19850923; JP 22706885 A 19851014