Web coating material supply apparatus and method
US6379463B1 · kind B1 · utility
3Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C1/0834
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A web coating apparatus having a partially submerged drum in a tray of coating material. The drum rotates and transfers coating material from the tray to a web material passing over the drum. A control system carefully controls the level of the coating material in the tray using an ultrasonic fluid level sensor in combination with a programmable system that can add or remove coating material to or from the tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.