Patent
   D643379
Priority
Mar 01 2010
Filed
Mar 01 2010
Issued
Aug 16 2011
Expiry
Aug 16 2025
Assg.orig
Entity
unknown
2
10
n/a
The ornamental design for a heat recovery apparatus, as shown and described.

FIG. 1 is a top plan view showing heater exhaust ports wherein air passes horizontally thru the heat recovery apparatus, wherein the top and bottom view are identical;

FIG. 2 is a front side elevational view thereof showing the vertical heat recovery ports, wherein both front and back side are identical;

FIG. 3 is a side elevational view taken from FIG. 1, wherein each side view is identical; and,

FIG. 4 is a perspective view thereof.

The heat recovery apparatus is installed in any heating unit exhaust duct and is designed to safely recover and utilize wasted heat.

Bolin, Loyd

Patent Priority Assignee Title
D708591, Sep 22 2012 Apple Inc Fan component
D965760, Jan 02 2020 DYNAEON INDUSTRIAL CO., LTD. Cooling fan with two air outlets
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