Fiber sampler
US5178020A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1991 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Sep 11, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fiber sampler has a flat collection surface and a carriage movable toward the surface to press a mass of fiber placed on the surface. The carriage, which includes a foraminous plate parallel to the collection surface, is pressed against the fiber with a predetermined pressure kept constant from one sample to the next with the pressure applied, a rake composed of parallel needles spaced rearwardly from a deflection bar is passed across the top of the foraminous plate to extract sample fibers from the portion of fiber extending through the plate holes. At the end of rake travel, the fibers are held between a fixed stop plate on the carriage and a back plate movable with the needles. A pinch clamp assembly is provided which can be lowered to grip the fibers collected on the needles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.