Multiple coat measurement and control apparatus and method
US5338361A · kind A · utility
28Cited by
35References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D5/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to apparatuses and methods for measuring and controlling the amount of multiple coating materials applied to a substrate, and in particular to an apparatus and method for monitoring and regulating the amount of multiple coating materials containing different compositions applied to a substrate, such as paperboard. The coating measurement is insensitive to changes in both the amount of substrate as well as in the amount of an interfering component associated with the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.