Heat recovery air exchanger

- Venmar Ventilation Inc.
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FIG. 1 is a front perspective view of the heat recovery air exchanger; and,

FIG. 2 is a front view of the heat recovery air exchanger.

In the drawings, the broken lines depict unclaimed subject matter only and form no part of the claimed design.


The ornamental design for a heat recovery air exchanger, as shown and described.

Referenced Cited

U.S. Patent Documents

D366522 January 23, 1996 Lagace et al.
D547853 July 31, 2007 Pilon et al.
D566256 April 8, 2008 Abate et al.
D675723 February 5, 2013 Garcia

Patent History

Patent number: D704318
Type: Grant
Filed: Oct 17, 2013
Date of Patent: May 6, 2014
Assignee: Venmar Ventilation Inc. (Drummondville)
Inventor: Alain Martel (Montreal)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Ania Aman
Application Number: 29/470,042