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:
Sep. 08, 2015
Filed:
Jun. 22, 2011
William Proscia, Marlborough, CT (US);
Scott A. Liljenberg, Wethersfield, CT (US);
William J. Roy, Avon, IN (US);
Duane C. Mccormick, Colchester, CT (US);
Christopher T. Chipman, Killingly, CT (US);
William Proscia, Marlborough, CT (US);
Scott A. Liljenberg, Wethersfield, CT (US);
William J. Roy, Avon, IN (US);
Duane C. McCormick, Colchester, CT (US);
Christopher T. Chipman, Killingly, CT (US);
Carrier Corporation, Farmington, CT (US);
Abstract
An improved induced draft gas burner assembly for low NOresidential and light commercial gas furnaces is disclosed. The improved burner includes an upstream assembly coupled to a fuel inlet and an air inlet. The air inlet is coupled to a neck extending between the air inlet and the outlet of the neck, both of which may be disposed within an optional chamber. If used, such a chamber also includes an outlet coupled to a burner. In practice, the chamber and neck behave as a Helmholtz resonator that can be tuned to provide an upstream impedance Zthat exceeds the downstream impedance Zof the components downstream of the burner assembly.