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:
May. 19, 2015
Filed:
Jul. 07, 2011
Applicant:
Michael W. Schultz, Elk River, MN (US);
Inventor:
Michael W. Schultz, Elk River, MN (US);
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24H 9/20 (2006.01); F23N 1/02 (2006.01); F23N 5/20 (2006.01); F23N 5/10 (2006.01); F23N 5/18 (2006.01);
U.S. Cl.
CPC ...
F23N 1/022 (2013.01); F23N 5/10 (2013.01); F23N 5/203 (2013.01); F23N 2005/181 (2013.01); F23N 2033/04 (2013.01); F23N 2041/02 (2013.01);
Abstract
Systems, methods, and controllers for controlling gas-fired appliances such as warm air furnaces are disclosed. An illustrative furnace system can include a burner unit in communication with a combustion air flow conduit and heat exchanger, a variable speed inducer fan or blower adapted to provide a flow of combustion air to the burner unit, a furnace controller and motor speed control unit adapted to regulate the speed of the inducer fan or blower, and a pneumatically modulated gas valve adapted to variably output gas pressure to the burner unit based at least in part on the combustion air flow.