Heat exchanger
Description
FIG. 1 is a perspective view of the heat exchanger showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is an elevational view of the side opposite that shown in FIG. 1;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left end elevational view thereof; and
FIG. 6 is a right end elevational view thereof.
Referenced Cited
U.S. Patent Documents
D273324 | April 3, 1984 | Brownlee |
2499384 | March 1950 | Holm et al. |
2521369 | September 1950 | Holm et al. |
3438742 | April 1969 | Grunewald et al. |
3825063 | July 1974 | Cowans |
3907028 | September 1975 | Lawson |
Patent History
Patent number: D279704
Type: Grant
Filed: Jun 17, 1982
Date of Patent: Jul 16, 1985
Inventor: David S. Tofte (St. Clair, MN)
Primary Examiner: Catherine E. Kemper
Law Firm: Burd, Bartz & Gutenkauf
Application Number: 6/389,162
Type: Grant
Filed: Jun 17, 1982
Date of Patent: Jul 16, 1985
Inventor: David S. Tofte (St. Clair, MN)
Primary Examiner: Catherine E. Kemper
Law Firm: Burd, Bartz & Gutenkauf
Application Number: 6/389,162
Classifications
Current U.S. Class:
D23/136