Patent · US Expired

Method and a device for assortment of a product flow

US4812644A · kind A · utility

0Cited by

5References

6Claims

0Family size

Assignee

AGEC AB · SE

Inventors

Bertil Larsson · Tyresö, SE
Erik Andersson · Lund, SE
Rolf G. R. H ahansson · Höör, SE

Key dates

Filing date	May 20, 1987
Grant date	Mar 14, 1989
Priority date	—
Expiry date	May 20, 2007

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB07C5/342
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a method and a device for assortment of objects a broadbanded light is emitted from a light source, which light is reflected via a rotary mirror against the objects falling freely immediately after they have left a conveyor belt. The reflected light is led via the other part of the same surface of the rotary mirror to an optical unit and is reflected against a double detector dividing the light flow into two wide ranges about 1 .mu.m. The detector signals are compared to one another and after processing the resulting signal is caused to actuate means separating the objects mechanically.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.