Soffit fan
US6220956A · kind A · utility
51Cited by
14References
4Claims
0Family size
Inventors
Key dates
| Filing date | Feb 14, 2000 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Feb 14, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/0001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An apparatus for increasing ventilation of heated and/or moisture-laden air from an attic or roof crawl space (12) in a dwelling or the like, a soffit fan (30) acts to accelerate natural convection by creating an air flow (16) from pulling cooler, denser outside air into attic space (12). The cooler air flow (16) displaces the heated and/or moisture-laden attic air; the attic air rises and is expelled through an opening at or near the top of a roof, preferably through a ridge opening (20) in a roof ridge ventilator (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.