USD221945S - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- USD221945S USD221945S US D221945 S USD221945 S US D221945S
- Authority
- US
- United States
- Prior art keywords
- heat exchanger
- design
- conn
- united states
- haven
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 description 2
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Description
United States Patent 0 Des. 221,945 Patented Sept. 21, 1971 HEAT EXCHANGER Mario L. Carangelo, North Haven, Conn., assignor to The G & 0 Manufacturing Company, New Haven,
Conn.
Filed Nov. 20, 1969, Ser. No. 20,207 Term of patent 14 years Int. Cl. D23-03 US. Cl. D23--127 FIGS. 1, 2, 3 and 4 are rear, top, front and side views of a heat exchanger embodying my design.
FIGS. 5 and 6 are rear and top views of a second embodiment of my design, the front and side of which are substantially the same as FIGS. 3 and 4 respectively.
I claim:
The ornamental design for a heat exchanger, as shown and described.
References Cited UNITED STATES PATENTS 2,945,680 7/1960 Slemmons 165-166X 3,229,760 1/1966 Hurter et al. 165152X 3,489,448 1/1970 Toshio Nagara et al.
WALLACE R. BURKE, Primary Examiner S. J. MERCER, Assistant Examiner
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