Roll gap controller for regulating coating thickness
US5409732A · kind A · utility
21Cited by
17References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Dec 1, 2013 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06B1/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for regulating the thickness of an applied coating. The method includes passing a web through two members which define a gap between them. A sensor measures periodic variations in the thickness of the coating on the web. An automatic controller analyzes information from the sensor and converts the information into gap adjusting signals. Piezoelectric or magnetostrictive translators adjust the size of the gap to compensate for repeating variations in coating thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.