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:
Feb. 11, 2014
Filed:
Jul. 12, 2010
Shailesh S Manohar, Coppell, TX (US);
Glenn W Kowald, Carrollton, TX (US);
Floyd E Cherington, Carrollton, TX (US);
Hans J Paller, Double Oak, TX (US);
John W Whitesitt, Garland, TX (US);
Jianmin Zhang, Greer, SC (US);
Shailesh S Manohar, Coppell, TX (US);
Glenn W Kowald, Carrollton, TX (US);
Floyd E Cherington, Carrollton, TX (US);
Hans J Paller, Double Oak, TX (US);
John W Whitesitt, Garland, TX (US);
Jianmin Zhang, Greer, SC (US);
Lennox Industries Inc., Richardson, TX (US);
Abstract
A clamshell heat exchanger for use in a gas-fired direct combustion furnace. The exchanger comprises a first clamshell half and a second clamshell half that when joined with the first clamshell half forms a passageway having an inlet and an outlet. The passageway includes a U-bend located between the inlet and the outlet, wherein the U-bend includes a re-entrant sectional profile.