Apparatus and method for drying or curing web materials and coatings
US5659972A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Oct 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A radio frequency (RF) assisted flotation air bar dryer apparatus and method for drying and/or curing a traveling web includes RF generating means for delivering RF through field and RF stray field to the web to heat the web, air bars to direct air flow to the web for cooling to facilitate emission of moisture therefrom and to avoid blistering due to overheating, an RF field reflector to reflect RF energy to the web, and a control system to monitor and to control air temperature and/or flow, RF field strength, and/or web temperature to maintain a balance between heating and cooling to obtain efficient high speed drying while avoid damage to the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.