Patent
   D330076
Priority
Mar 12 1991
Filed
Mar 12 1991
Issued
Oct 06 1992
Expiry
Oct 06 2006
Assg.orig
Entity
unknown
11
5
n/a
The ornamental design for a fireplace heat exchange unit, as shown.

FIG. 1 is a top front and right side perspective view of a fireplace heat exchange unit showing my new design;

FIG. 2 is a front elevational view thereof on a reduced scale;

FIG. 3 is a rear elevational view thereof on a reduced scale;

FIG. 4 is a left side elevational view thereof on a reduced scale;

FIG. 5 is a right side elevational view thereof on a reduced scale;

FIG. 6 is a top plan view thereof on a reduced scale; and,

FIG. 7 is a bottom plan view thereof on a reduced scale.

Evans, Dennis D.

Patent Priority Assignee Title
6014966, Sep 30 1997 Heat transfer unit for a furnace exhaust vent
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D919077, Jul 08 2019 Vent Genius LLC Heat recovery device
D975262, Feb 27 2020 Ningbo Pureza Technology, LLC Air filter
Patent Priority Assignee Title
4185612, Dec 02 1977 CFM-MAJESTIC, INC ; MAJESTIC PRODUCTS COMPANY, THE Heat circulating fireplace
4286975, Oct 02 1979 Chimney heat exchanger
4295519, Nov 13 1979 WEAVER, WILLIAM W Heat reclaimer
4390352, Mar 29 1980 Heat exchanger
D253067, Aug 15 1977 Caradon Mira Limited Fireplace heat exchanger
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