Radon and other gas ventilator
US4922808A · kind A · utility
23Cited by
9References
3Claims
0Family size
Inventor
Key dates
| Filing date | Feb 16, 1989 |
| Grant date | May 8, 1990 |
| Priority date | — |
| Expiry date | Feb 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S454/909
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An effective radon ventilator which adapts to laundry dryer vents. The unit vents radon gas from houses at the point of greatest concentration, the basement or ground level, as well as venting other objectionable fumes. The ventilator houses a fan and a flow damper to vent both airborne radon gas/fumes and laundry dryer vapors. A heat transfer device enables energy efficient operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.