USD248943S - Insulator for an open coil electric heating unit - Google Patents
Insulator for an open coil electric heating unit Download PDFInfo
- Publication number
- USD248943S USD248943S US05/752,423 US75242376F USD248943S US D248943 S USD248943 S US D248943S US 75242376 F US75242376 F US 75242376F US D248943 S USD248943 S US D248943S
- Authority
- US
- United States
- Prior art keywords
- insulator
- electric heating
- heating unit
- coil electric
- open coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012212 insulator Substances 0.000 title claims description 6
- 238000005485 electric heating Methods 0.000 title claims description 3
Images
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.
Claims (1)
- The ornamental design for an insulator for an open coil electric heating unit, substantially as shown and described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/752,423 USD248943S (en) | 1976-12-13 | 1976-12-13 | Insulator for an open coil electric heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/752,423 USD248943S (en) | 1976-12-13 | 1976-12-13 | Insulator for an open coil electric heating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USD248943S true USD248943S (en) | 1978-08-15 |
Family
ID=69628547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/752,423 Expired - Lifetime USD248943S (en) | 1976-12-13 | 1976-12-13 | Insulator for an open coil electric heating unit |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USD248943S (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD253171S (en) | 1977-05-16 | 1979-10-16 | Emerson Electric Co. | Insulator for electric heating elements |
| USD261260S (en) | 1979-10-22 | 1981-10-13 | Emerson Electric Co. | Insulator for an open-coil electric heating element |
| USD262285S (en) | 1979-08-22 | 1981-12-15 | Emerson Electric Co. | Insulator for supporting the heating coil of an electric heater |
| US4363959A (en) | 1981-08-31 | 1982-12-14 | E. R. Wagner Manufacturing Company | Stand-off for resistance wires |
| US4628189A (en) | 1985-02-11 | 1986-12-09 | Emerson Electric Co. | Electric resistance heater |
| USD367844S (en) | 1995-05-04 | 1996-03-12 | Hart & Cooley, Inc. | Heater insulator |
| US5578232A (en) | 1995-05-04 | 1996-11-26 | Hart & Cooley, Inc. | Open-coil heater assembly and insulator therefor |
| US6807220B1 (en) | 2003-05-23 | 2004-10-19 | Mrl Industries | Retention mechanism for heating coil of high temperature diffusion furnace |
| USD727381S1 (en) * | 2013-12-30 | 2015-04-21 | Carlisle Thweatt, Jr. | Ceramic support rail |
| USD727987S1 (en) * | 2013-12-30 | 2015-04-28 | Carlisle Thweatt, Jr. | Ceramic insulator coil support |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673889A (en) | 1950-04-18 | 1954-03-30 | Avco Mfg Corp | Insulating support for heating elements |
| US3935376A (en) | 1974-12-18 | 1976-01-27 | Du-Co Ceramics Company | Ceramic insulator for supporting a ribbon-type heating element |
-
1976
- 1976-12-13 US US05/752,423 patent/USD248943S/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2673889A (en) | 1950-04-18 | 1954-03-30 | Avco Mfg Corp | Insulating support for heating elements |
| US3935376A (en) | 1974-12-18 | 1976-01-27 | Du-Co Ceramics Company | Ceramic insulator for supporting a ribbon-type heating element |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD253171S (en) | 1977-05-16 | 1979-10-16 | Emerson Electric Co. | Insulator for electric heating elements |
| USD262285S (en) | 1979-08-22 | 1981-12-15 | Emerson Electric Co. | Insulator for supporting the heating coil of an electric heater |
| USD261260S (en) | 1979-10-22 | 1981-10-13 | Emerson Electric Co. | Insulator for an open-coil electric heating element |
| US4363959A (en) | 1981-08-31 | 1982-12-14 | E. R. Wagner Manufacturing Company | Stand-off for resistance wires |
| US4628189A (en) | 1985-02-11 | 1986-12-09 | Emerson Electric Co. | Electric resistance heater |
| USD367844S (en) | 1995-05-04 | 1996-03-12 | Hart & Cooley, Inc. | Heater insulator |
| US5578232A (en) | 1995-05-04 | 1996-11-26 | Hart & Cooley, Inc. | Open-coil heater assembly and insulator therefor |
| US6807220B1 (en) | 2003-05-23 | 2004-10-19 | Mrl Industries | Retention mechanism for heating coil of high temperature diffusion furnace |
| USD727381S1 (en) * | 2013-12-30 | 2015-04-21 | Carlisle Thweatt, Jr. | Ceramic support rail |
| USD727987S1 (en) * | 2013-12-30 | 2015-04-28 | Carlisle Thweatt, Jr. | Ceramic insulator coil support |
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