Air to air heat exchanger

- Stirling Technology, Inc.
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Description

FIG. 1 is a front and right side perspective view of an air to air heat exchanger showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a front and right side perspective view thereof on a reduced scale, shown in use, the broken line showing of environmental structure is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
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Foreign Patent Documents
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Patent History
Patent number: D330248
Type: Grant
Filed: Jul 23, 1990
Date of Patent: Oct 13, 1992
Assignee: Stirling Technology, Inc. (Athens, OH)
Inventors: Catherine J. Chagnot (Athens, OH), Craig J. Kinzelman (Athens, OH), Noshir D. Colah (Athens, OH), Harry Dewar (Amesville, OH)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Killworth, Gottman, Hagan & Schaeff
Application Number: 7/557,486