Method and apparatus for examining hairiness of yarn
US4948260A · kind A · utility
13Cited by
8References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Feb 7, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/365
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The yarn (3) is illuminated by a transmitter (1) and the light reflected by the yarn surface is fed to a detector (5) and evaluated, the optical path being selected such that the receiver (5) receives light only from that side of the yarn (3) that is not illuminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.