Moisture repellent air duct products
US6769455B2 · kind B2 · utility
19Cited by
87References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2001 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | May 23, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2013/221
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Water resistant fibrous air duct insulation products and methods for making such products. The products may include a duct board or a duct tube including a plurality of layers of resin-bonded fibrous mat. The duct board or tube is preferably rendered water-repellent at the air stream surface by incorporating a hydrophobic agent into the resin of at least one of the layers adjacent the air stream surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.