Optical wood-bark segregator
US4266675A · kind A · utility
6Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1980 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Jan 4, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07C5/366
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process of separating wood chips according to their bark content by orienting them between a light source and light detector, measuring the amount of light transmitted through each chip, and separating the bark-laden chips from the bark-free chips on the basis of their light transmittance. An apparatus for separating wood chips according to their bark content, comprising a light source, a light detector, means for properly orienting the wood chips between the light source and detector, and means for differentiating between bark-laden chips and bark-free chips on the basis of their light transmittance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.