Global Patent Index - EP 0291392 B1

EP 0291392 B1 19921014 - PULVERULENT SUBSTANCE FOR THE LUBRIFICATION OF THE RECORDING MEDIUM OF A MAGNETIC PRINTER

Title (en)

PULVERULENT SUBSTANCE FOR THE LUBRIFICATION OF THE RECORDING MEDIUM OF A MAGNETIC PRINTER

Publication

EP 0291392 B1 19921014 (FR)

Application

EP 88401089 A 19880504

Priority

FR 8706510 A 19870507

Abstract (en)

[origin: US4831386A] The invention relates to a powdered substance for lubricating the recording carrier of a magnetic printer. This solid substance is in the form of a powder comprising groups (G) of particles, each of these groups being formed by one particle (30) of lubricating insulating material surrounded on its periphery by particles (31) of conductive carbon, the number of the latter particles being sufficient to cover the entirety of the external surface of this particle of lubricating insulating material. The invention is applicable to magnetography.

IPC 1-7

G03G 19/00

IPC 8 full level

G03G 5/00 (2006.01); G03G 19/00 (2006.01)

CPC (source: EP US)

G03G 5/005 (2013.01 - EP US); G03G 19/00 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0291392 A1 19881117; EP 0291392 B1 19921014; DE 3875274 D1 19921119; DE 3875274 T2 19930225; FR 2615011 A1 19881110; FR 2615011 B1 19890623; US 4831386 A 19890516

DOCDB simple family (application)

EP 88401089 A 19880504; DE 3875274 T 19880504; FR 8706510 A 19870507; US 19117588 A 19880506