Insulator for an open coil electric heating unit

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
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
Classifications
Current U.S. Class: D13/18
International Classification: D1303;