Global Patent Index - EP 0504452 B1

EP 0504452 B1 19950628 - Process and apparatus for charging particles.

Title (en)

Process and apparatus for charging particles.

Title (de)

Verfahren und Einrichtung zur Aufladung von Partikeln.

Title (fr)

Procédé et appareil pour charger des particules.

Publication

EP 0504452 B1 19950628 (DE)

Application

EP 91104307 A 19910320

Priority

  • EP 91104307 A 19910320
  • US 88419892 A 19920518

Abstract (en)

[origin: EP0504452A1] In order to increase the efficiency of charging in a friction charger (2), it is proposed to precharge the particles before the first impact with the walls by making use of the photoeffect. This is done preferably by irradiating the particles by means of UV radiation from a UV excimer radiator (1). <IMAGE>

IPC 1-7

B03C 7/00; B03C 3/01; B03C 3/38; B03C 3/30

IPC 8 full level

B03C 3/01 (2006.01); B03C 3/16 (2006.01); B03C 3/30 (2006.01); B03C 3/38 (2006.01); B03C 7/00 (2006.01)

CPC (source: EP US)

B03C 3/16 (2013.01 - EP US); B03C 3/30 (2013.01 - EP US); B03C 3/38 (2013.01 - EP US); B03C 7/003 (2013.01 - EP US); B03C 7/006 (2013.01 - EP US)

Designated contracting state (EPC)

DE ES FR GB IT SE

DOCDB simple family (publication)

EP 0504452 A1 19920923; EP 0504452 B1 19950628; DE 59105873 D1 19950803; ES 2075238 T3 19951001; US 5288305 A 19940222

DOCDB simple family (application)

EP 91104307 A 19910320; DE 59105873 T 19910320; ES 91104307 T 19910320; US 88419892 A 19920518