Patent
   D278361
Priority
Sep 02 1982
Filed
Sep 02 1982
Issued
Apr 09 1985
Expiry
Apr 09 1999
Assg.orig
Entity
unknown
1
3
n/a
The ornamental design for a heat exchanger, as shown.

FIG. 1 is a perspective view of a heat exchanger, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is an end elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is an elevational view of the end opposite that shown in FIG. 3;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a top plan view thereof.

Pernosky, Richard J.

Patent Priority Assignee Title
D352550, Nov 08 1993 Compression Coolers, Inc. Industrial air cooled heat exchanger
Patent Priority Assignee Title
3896992,
4078602, Dec 17 1976 Olla Enterprises, Inc. Heat exchanger for recovering waste heat
4303122, Aug 16 1979 ENTEC Products Corporation Flue heat recovery device
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