Film applicator with adjustable dynamic extraction flow regulator
US5882406A · kind A · utility
3Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Jul 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C11/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A short dwell coater and film applicator coating has an application chamber between an inlet overflow baffle plate and a final metering element. An adjustable wedge is spaced in the machine direction from a fixed wedge to define a gap which serves as a coating extraction port. A cylindrical rod is positioned in the extraction port which is about 3/8th to about two inches in diameter and is driven to rotate at a rate of between one and one-hundred rpm. The rod serves to extract air and coating from the application chamber. Alternatively, an adjustable plate may be positioned to obstruct an opening leading to the extraction port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.