Heat exchanger grid for an electric heater

- Emerson Electric Co.
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Description

FIG. 1 is a perspective view of a heat exchange grid for an electric heater showing our new design;

FIG. 2 is a front elevational view, the rear elevation being a mirror image thereof;

FIG. 3 is an enlarged fragmentary sectional view, taken along line 3--3 of FIG. 2;

FIG. 4 is an enlarged fragmentary sectional view, taken along line 4--4 of FIG. 2;

FIG. 5 is an enlarged fragmentary sectional view, taken along line 5--5 of FIG. 2;

FIG. 6 is an enlarged fragmentary sectional view, taken along line 6--6 of FIG. 2.

Referenced Cited
U.S. Patent Documents
D239118 March 1976 Branson
2109279 February 1938 Soverhill
2455839 December 1948 Walton
2606274 August 1952 Spierer
2839657 June 1959 Mast
3394387 July 1968 Williams
Patent History
Patent number: D256724
Type: Grant
Filed: Aug 9, 1976
Date of Patent: Sep 2, 1980
Assignee: Emerson Electric Co. (St. Louis, MO)
Inventors: Alben C. Boggs (Pittsburgh, PA), John C. Stover (Verona, PA)
Primary Examiner: Catherine E. Kemper
Attorney: Michael Williams
Application Number: 5/712,762
Classifications
Current U.S. Class: D23/136
International Classification: D2303;