Insulator for an open coil electric heating unit

- Emerson Electric Co.
Description

FIG. 1 is a perspective view of an insulator for open coil electric heating unit showing my new design;

FIG. 2 is a front elevational view of the same, the rear view being a mirror image,

FIG. 3 is a top plan view of the same,

FIG. 4 is a side elevational view, and

FIG. 5 is a sectional view corresponding to the line 5--5 of FIG. 2.

Referenced Cited
U.S. Patent Documents
D23951 January 1895 Potter
D108489 February 1938 Dalton
2673889 March 1954 Metz
3935376 January 27, 1976 Cooper et al.
Patent History
Patent number: D258877
Type: Grant
Filed: Jun 15, 1978
Date of Patent: Apr 14, 1981
Assignee: Emerson Electric Co. (St. Louis, MO)
Inventor: Reynold C. King (Wytheville, VA)
Primary Examiner: W. Stallard
Attorney: Michael Williams
Application Number: 5/915,947
Classifications
Current U.S. Class: D13/18
International Classification: D1303;