Global Patent Index - EP 0744478 B1

EP 0744478 B1 2000-05-31 - Foreign fiber detection in an opening machine

Title (en)

Foreign fiber detection in an opening machine

Title (de)

Fremdfaserdetektion an einer Öffnungsmaschine

Title (fr)

Détection de fibres étrangères dans une machine d'ouverture


EP 0744478 B1 (DE)


EP 96104099 A


DE 19518783 A

Abstract (en)

[origin: EP0744478A1] An installation is for detecting differently coloured fibres, films or fabrics in fibre opening lines. It features sensors (S) located opposite the surface of an opening roll (W), across the working width of the roll (W). If the sensors (S) and the evaluation electronics establish a clear colour deviation compared to the normal fibre in the opened material, the fibre current is sluiced out of the normal fibre opening line wholly or partially.

IPC 1-7 (main, further and additional classification)

D01G 31/00

IPC 8 full level (invention and additional information)

D01G 9/12 (2006.01); D01G 31/00 (2006.01)

CPC (invention and additional information)

D01G 31/003 (2013.01)

Designated contracting state (EPC)


DOCDB simple family

EP 0744478 A1 19961127; EP 0744478 B1 20000531; DE 19518783 A1 19961128; DE 19518783 B4 20090409; DE 59605344 D1 20000706; IN 188165 B 20020831; JP H093728 A 19970107; TR 199600366 A2 19961221