Patent
   D253171
Priority
May 16 1977
Filed
May 16 1977
Issued
Oct 16 1979
Expiry
Oct 16 1993
Assg.orig
Entity
unknown
4
11
n/a
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.

Patent Priority Assignee Title
4628189, Feb 11 1985 EMERSON ELECTRIC CO , 8000 WEST FORISSANT AVENUE, PO BOX 4100, ST LOUIS, MISSOURI 63136, A CORP OF MISSOURI Electric resistance heater
D353580, Feb 28 1990 Lock for an electrical switch
D435022, Aug 26 1999 Wilbur J, Thomas Electrical toggle switch blocker
D973590, Nov 30 2020 NDELECTRIC CO., LTD. Connection terminal for cutout switch
Patent Priority Assignee Title
1935163,
2081089,
3860788,
3882438,
226435,
D248641, Oct 12 1976 Emerson Electric Co. Insulator for an open coil electric heating unit
D248642, Oct 12 1976 Emerson Electric Co. Insulator for an open coil electric heating unit
D248643, Oct 12 1976 Emerson Electric Co. Insulator for an open coil electric heating unit
D248943, Dec 13 1976 Insulator for an open coil electric heating unit
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 16 1977Emerson Electric Co.(assignment on the face of the patent)
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