Controlling air quality
US5462485A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1993 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Dec 3, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S454/902
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Controlling quantity of outside air drawn into a building being based upon the rate of change in the concentration of pollutants in the air, whereby the quality of air inside the building is substantially controlled. An air system includes an intake port for coupling the air system to a source of outside air, a sensor located proximal to the intake port for monitoring the quality of the air, a regulator for controlling the quantity of air drawn into the building, and a controller coupled to the sensor and the regulator for directing the regulator to reduce the quantity of air drawn into the building in response to the rate of change of the concentration of the pollutants. Also, substantially controlling the quality of air inside a building by controlling the quantity of outside air drawn into a building based upon the concentration of carbon dioxide in the outside air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.