Insulator for an open coil electric heating unit
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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
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;
International Classification: D1303;