The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1995
Filed:
Dec. 03, 1993
Devon A Kinkead, Cumberland, RI (US);
Extraction Systems, Inc., Woonsocket, RI (US);
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.