EP 0402543 A1 19901219 - Optical sorting of objects.
Title (en)
Optical sorting of objects.
Title (de)
Optische Sortierung von Gegenständen.
Title (fr)
Tri optique d'objets.
Publication
Application
Priority
EP 89305989 A 19890613
Abstract (en)
A sorter is described that optically differentiates acceptable objects from unacceptable objects. The sorter illuminates the objects as they move in a stream through a viewing zone with both visible and infrared light. The detecting means and circuit provides electric signals proportional to the light transmitted or reflected by the objects to a microcomputer system which in turn activates a rejection mechanism if unacceptable objects are viewed. The microcomputer system determines which objects are unacceptable by comparing signals for objects being viewed with stored signals for acceptable objects.
IPC 1-7
IPC 8 full level
B07C 5/342 (2006.01)
CPC (source: EP)
B07C 5/3425 (2013.01)
Citation (search report)
- [X] US 4235342 A 19801125 - BRAHAM RICHARD R [US]
- [X] WO 8701975 A1 19870409 - CRA SERVICES [AU]
- [Y] US 4057146 A 19771108 - CASTANEDA FERNANDO, et al
- [Y] EP 0060493 A2 19820922 - SATAKE ENG CO LTD [JP]
- [Y] US 3993899 A 19761123 - CHAPMAN THOMAS HENRY
- [A] EP 0111877 A1 19840627 - ILLYCAFFE SPA [IT], et al
- [A] GB 2133531 A 19840725 - DELTA TECHNOLOGY CORP
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0402543 A1 19901219; EP 0402543 B1 19960522; DE 68926537 D1 19960627; DE 68926537 T2 19970116
DOCDB simple family (application)
EP 89305989 A 19890613; DE 68926537 T 19890613