Web coating apparatus
US5136966A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1989 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Oct 25, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05C9/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention provides an apparatus for coating a web which has a first surface having been coated and a second surface opposite to the first surface. A support roll has a supporting surface around which the web is adapted to be conveyed and an air-jetting device for jetting air through the supporting surface onto the first surface of the web so that the web is supported by air without coming into contact with the supporting surface. A coater is disposed to face the supporting surface so as to coat the second surface of the web. The apparatus is provided with a heater for heating air to be jetted by the air-jetting device so that the temperature of the air becomes higher than that of the first surface of the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.