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:
Apr. 25, 2017
Filed:
Sep. 28, 2011
Paul M. Haydock, Zionsville, IN (US);
Larry D. Rieke, Zionsville, IN (US);
Stephen L. Pulley, Carmel, IN (US);
Nitu Gupta, Westfield, IN (US);
Scott A. Beck, Indianapolis, IN (US);
Paul M. Haydock, Zionsville, IN (US);
Larry D. Rieke, Zionsville, IN (US);
Stephen L. Pulley, Carmel, IN (US);
Nitu Gupta, Westfield, IN (US);
Scott A. Beck, Indianapolis, IN (US);
CARRIER CORPORATION, Farmington, CT (US);
Abstract
A coupling to connect a primary heat exchanger to a condensing heat exchanger of a furnace includes a coupling box extending between a primary heat exchanger and a condensing heat exchanger. The coupling box defines a flow path for flue gas between a primary heat exchanger outlet and a condensing heat exchanger inlet. A tube sheet is located at a distance from the tube sheet in the coupling box. The liner and the tube sheet define an insulating liner space therebetween reducing condensation on the liner.