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The ornamental design for an insulator for electric heating elements, substantially as shown and described. |
FIG. 1 is a front elevational view of an insulator for electric heating elements, showing our new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a side elevational view thereof, the opposite side being a mirror image of the side shown;
FIG. 4 is a cross sectional view taken on line 4--4 of FIG. 2;
FIG. 5 is a cross sectional view taken on line 5--5 of FIG. 2;
FIG. 6 is a front elevational view of a modified form of the insulator for electric heating elements shown in FIG. 1;
FIG. 7 is a rear elevational view of FIG. 6;
FIG. 8 is a side elevational view of FIG. 6, the opposite side being a mirror image of the side shown;
FIG. 9 is a cross sectional view taken on line 9--9 of FIG. 7; and
FIG. 10 is a cross sectional view taken on line 10--10 of FIG. 7.
Harris, Bruce C., Ogrodnik, Robert V.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 16 1977 | Emerson Electric Co. | (assignment on the face of the patent) | / |
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