Measuring the surface of a roller by glossmeter
US4053237A · kind A · utility
16Cited by
4References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Jul 2, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/57
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The surface texture of plastic film cast against chill rolls may be accurately predicted from the roll surface texture while mounted in a roll finishing machine by correlating a glossmeter measurement of the roll surface to an experimentally determined functional relation between similar rolls and corresponding film product. Means are provided on the glossmeter test base to assure accurate orientation of the instrument relative to the cylindrical surface and axis of the test subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.