Heat exchanger
The broken lines are included for the purpose of illustrating portions of the heat exchanger that form no part of the claimed design.
The product “heat exchanger” is positioned within a boiler or burner such that after heating, the heat storage can facilitate the transfer of heat to the boiler or burner in a delayed and uniform manner.
Claims
The ornamental design for heat exchanger, as shown and described.
3315739 | April 1967 | Kearney |
7168481 | January 30, 2007 | Ishiyama et al. |
7981168 | July 19, 2011 | Ishiyama et al. |
D686710 | July 23, 2013 | Towiwat |
D686711 | July 23, 2013 | Towiwat |
D686712 | July 23, 2013 | Towiwat |
20050056410 | March 17, 2005 | Ishiyama et al. |
20070107888 | May 17, 2007 | Ishiyama et al. |
20090025919 | January 29, 2009 | Ishiyama et al. |
Type: Grant
Filed: May 3, 2013
Date of Patent: Dec 31, 2013
Inventor: Dhiti Towiwat (Bangkok)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Ania Aman
Application Number: 29/453,853