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:
Jan. 10, 2017
Filed:
Dec. 21, 2011
Jonathan Douglas, Lewisville, TX (US);
Erroll Eaton, McKinney, TX (US);
Jonathan Douglas, Lewisville, TX (US);
Erroll Eaton, McKinney, TX (US);
Lennox Industries Inc., Richardson, TX (US);
Abstract
An economizer having a first air inlet, a second air inlet and an air outlet, a method of operating an economizer and a heating, ventilation and air conditioning (HVAC) system employing the economizer. In one embodiment, the economizer includes: (1) a first damper blade assembly in fluid communication with the first air inlet and the air outlet and having a first plurality of damper blades configured to move in parallel and (2) a second damper blade assembly in fluid communication with the second air inlet and the air outlet and having a second plurality of damper blades configured to move in opposition.