EP 0057859 B1 19860528 - DEVICE FOR WORKING THE SURFACE OF A MAGNETIC RECORDING CARRIER
Title (en)
DEVICE FOR WORKING THE SURFACE OF A MAGNETIC RECORDING CARRIER
Publication
Application
Priority
DE 3103874 A 19810205
Abstract (en)
[origin: US4514937A] A method and apparatus for burnishing the surface of magnetic recording media, wherein there is relative movement between the surface to be burnished and the abrasive member, and the abrasive member is urged against the said surface, the pressure applied being increased over a period of time or at a plurality of locations, and then being reduced again.
IPC 1-7
IPC 8 full level
G11B 5/84 (2006.01); B24B 7/13 (2006.01); B24B 7/16 (2006.01); B24B 21/04 (2006.01)
CPC (source: EP US)
B24B 7/13 (2013.01 - EP US); B24B 7/16 (2013.01 - EP US); B24B 21/04 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0057859 A2 19820818; EP 0057859 A3 19840613; EP 0057859 B1 19860528; DE 3103874 A1 19820909; DE 3271284 D1 19860703; JP H0319611 B2 19910315; JP S57150139 A 19820916; US 4514937 A 19850507
DOCDB simple family (application)
EP 82100574 A 19820128; DE 3103874 A 19810205; DE 3271284 T 19820128; JP 1503982 A 19820203; US 33950482 A 19820115