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:
Aug. 26, 2008
Filed:
Sep. 08, 2005
Ozzie Missoum, Pike Road, AL (US);
Gregory M. Welk, Prattville, AL (US);
Jeffrey M. Haney, Montgomery, AL (US);
Phillip W. Stephens, Millbrook, AL (US);
Qian Zhang, Montgomery, AL (US);
Ozzie Missoum, Pike Road, AL (US);
Gregory M. Welk, Prattville, AL (US);
Jeffrey M. Haney, Montgomery, AL (US);
Phillip W. Stephens, Millbrook, AL (US);
Qian Zhang, Montgomery, AL (US);
Rheem Manufacturing Company, New York, NY (US);
Abstract
A fuel-fired water heater has a single pass condensing-type heat exchanger disposed within its water storage tank portion. The heat exchanger includes a primary non-condensing portion defined by a combustion chamber positioned in an upper interior portion of the tank and having a spaced series of vertical tubes depending therefrom. A secondary condensing portion of the heat exchanger is defined by a plenum having a top side connected to the bottom ends of the vertical tubes, and a bottom side from which a downwardly coiled flue tube depends. A fuel burner generates hot combustion gases that are sequentially flowed into the combustion chamber and then downwardly through the balance of the heat exchanger in a single pass.