Metal extrusion for an electric heating element

- Emerson Electric Co.
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Description

FIG. 1 is a broken perspective view of a metal extrusion for an electric heating element, showing our new design, and

FIG. 2 is an enlarged elevational view looking from one end thereof, the opposite end being the same.

Referenced Cited
U.S. Patent Documents
3004640 October 1961 Macomber
3331946 July 1967 Bilbro
3548159 December 1970 Ellstroem
4281238 July 28, 1981 Noma et al.
Patent History
Patent number: D263734
Type: Grant
Filed: Mar 24, 1980
Date of Patent: Apr 6, 1982
Assignee: Emerson Electric Co. (St. Louis, MO)
Inventors: Donald M. Cunningham (Pittsburgh, PA), Richard W. Brent (Pittsburgh, PA), John C. Stover (Verona, PA)
Primary Examiner: Veronica O'Keefe
Attorney: Michael Williams
Application Number: 6/132,790
Classifications
Current U.S. Class: D23/77; D25/74
International Classification: D2399;