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. 17, 2019
Filed:
Dec. 20, 2017
Applicant:
Rheem Manufacturing Company, Atlanta, GA (US);
Inventors:
Hari Krishna Kanagala, Fort Smith, AR (US);
Ken Frederick, Fort Smith, AR (US);
Darrell Binz, Charleston, AR (US);
Assignee:
Rheem Manufacturing Company, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F 1/20 (2006.01); F28F 1/00 (2006.01); F28F 13/08 (2006.01);
U.S. Cl.
CPC ...
F28F 1/006 (2013.01); F28F 13/08 (2013.01);
Abstract
A heat exchange tube for an HVAC system can include at least one reduced diameter section with an integral flattened ridge. The flow of combustion gases through the heat exchanger tubes may be partially constricted inside the reduced diameter sections. When installed in an HVAC system the integral flattened ridges may be angled to intercept the flow of air outside the heat exchanger tubes.