Particulate sample analyzing instrument employing vibration to compact the sample
US4538908A · kind A · utility
3Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 23, 1982 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Sep 23, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/4769
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an instrument for optically analyzing particulate samples such as grain samples, the sample is introduced into a chute which is received in a vibrating apparatus to vibrate the grain in the chute and compact it. The chute is then dropped to a carriage which transports the chute and the grain through a beam of narrow band infrared light. A photocell is positioned to detect the amount of light passing through the grain sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.