Inspection of elongated material
US4415926A · kind A · utility
15Cited by
7References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 28, 1982 |
| Grant date | Nov 15, 1983 |
| Priority date | — |
| Expiry date | May 28, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8909
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a method for characterizing crimped tow for subsequent identification or quality control comprising the steps of obtaining length measurements of the individual crimps in a sample of the tow, graphically representing the measurement distribution of a sufficient quantity of the tow until a pattern is established, and using the pattern as a standard against which other tow is compared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.