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. 27, 2005
Filed:
Nov. 01, 2004
Mark Allen Ferguson, Keller, TX (US);
Frank Austin Myers, Mansfield, TX (US);
Richard Patrick Carter, Keller, TX (US);
Michael James Hubbard, Dallas, TX (US);
Curtis Allan Hissam, Aledo, TX (US);
Scott Kevin White, Fort Worth, TX (US);
Mark Allen Ferguson, Keller, TX (US);
Frank Austin Myers, Mansfield, TX (US);
Richard Patrick Carter, Keller, TX (US);
Michael James Hubbard, Dallas, TX (US);
Curtis Allan Hissam, Aledo, TX (US);
Scott Kevin White, Fort Worth, TX (US);
Riverside Hydronics, LLC, Fort Worth, TX (US);
Abstract
A high efficiency heat exchanger is shown which can be incorporated into a finned tube water heater. The heat exchanger has a pair of flow manifolds each having a water inlet and a water outlet and a series of connecting openings. Circular flow tubes have connecting ends which fit within the connecting openings of the manifold so that the tubes are arranged in a stacked fashion to form a tube bundle. When incorporated into a water heater, a burner communicates with the interior space within the stacked tube bundle for producing products of combustion for heating water flowing in the flow tubes. The flow tubes have external fins which are crushed to form upper and lower flat stacking surfaces for stacking the tubes to form the tube bundle. The fins are also crushed to form angled baffled surfaces about a external periphery of the tubes. The baffle surfaces serve to retain heat from the products of combustion of the burner which are released into the interior space within the stacked tube bundle. A method of corrosion protecting the heat exchanger is also shown.