Insulator for an open coil electric heating unit
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 insulator on an enlarged scale, the rear view being similar when the insulator is rotated 180 degrees about its longitudinal axis,
FIG. 3 is a side elevational view of the insulator on an enlarged scale, the opposite side being similar,
FIG. 4 is a sectional view, corresponding to the line 4--4 of FIG. 2,
FIG. 5 is an elevational view, looking from the bottom of FIG. 2, and
FIG. 6 is a sectional view corresponding to the line 6--6 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: D248943
Type: Grant
Filed: Dec 13, 1976
Date of Patent: Aug 15, 1978
Inventor: Reynold C. King (Wytheville, VA)
Primary Examiner: Susan J. Lucas
Attorney: Michael Williams
Application Number: 5/752,423
Type: Grant
Filed: Dec 13, 1976
Date of Patent: Aug 15, 1978
Inventor: Reynold C. King (Wytheville, VA)
Primary Examiner: Susan J. Lucas
Attorney: Michael Williams
Application Number: 5/752,423
Classifications
Current U.S. Class:
D13/18
International Classification: D1303;
International Classification: D1303;