US400978A - Electric heating apparatus - Google Patents
Electric heating apparatus Download PDFInfo
- Publication number
- US400978A US400978A US400978DA US400978A US 400978 A US400978 A US 400978A US 400978D A US400978D A US 400978DA US 400978 A US400978 A US 400978A
- Authority
- US
- United States
- Prior art keywords
- heating apparatus
- electric heating
- coils
- plates
- cores
- 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
- 238000005485 electric heating Methods 0.000 title description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010411 cooking Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/129—Cooking devices induction ovens
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
Definitions
- My invention relates to electric heating apparatus, the object being to provide means whereby heat may be obtained through the energy of electric currents, and to make such heat available for all domestic purposes of cooking and heating.
- the invention therefore consists of an electric coil or coils surrounding a magnetic core or cores and metallic plates placed in inductive relation with said core or cores.
- the metallic plates When alternating currents How in the coils, the metallic plates, by reason of the induced alternating currents generated therein, are raised rapidly to a high degree of temperature. This is utilized in a manner best suited to the purpose for which it is required.
- Figure 1 represents a view of a section of what I term an electric oven, showing the circuits.
- Fig. 2 shows a modification of the heating apparatus;
- Fig. 3 a view of the single coil with plates and an ordinary resistance inserted to regulate the amount of current, and consequently resultant heat;
- Fig. i is a View of the device when arranged to heat aliquid of any kind.
- C O are plates, which are placed closely adjacent to either one or both ends of the cores of the coils. These plates and coils are supported in any suitable manner by a bracket or frame. If a number of coils are used, they are to be placed in a single circuit, and the circuit also includes an alternating-current generator.
- the coils and plates are shown located in aboX or oven. Material to be cooked or heated is placed upon the plates, as illustrated.
- the heat may be regulated by an ordinary resistance, as is represented conventionally in Fig. 3; or the heat maybe controlled by placing in circuit a reaction-coil, F, (illustrated in Fig. 1.) This latter method of regulation is perhaps preferable to the ordinary resistance, inasmuch as it is less wasteful of energy.
- magnet-cores as constructed of wires. They may also be solid metal, in which case the cores themselves are heated.
- the plates are also shown in one piece. They may be built up in any manner desired which maybe deemed best suited for the purpose. It is also obvious that the plate may serve-as the bottom of a vessel in which a liquid is heated, as shown in Fig. 4.
- I claim 1 In an electric heating apparatus, a coil or coils in which alternating currents flow, said coil or coils having magnetic cores, in combination with a metallic plate or plates arranged adjacent to the said cores, whereby the flow of said alternating currents will cause the heating of said plates.
- a coil or coils having magnetic cores in combination with the metallic wall or walls of said oven,the said cores extending into close proximity to said wall or walls, whereby the flow of alternating currents in the coils will cause the walls of the oven to become heated.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Induction Heating (AREA)
- Electric Stoves And Ranges (AREA)
Description
(No Model.)
H. F. WATTS.
ELECTRIC HEATING APPARATUS.
PatentdApr. 9, 1889.-
ATTORNEY.
N PETERS, Pmto-btho raphen Wnhin tm D. (L
UNITED STATES HENRY b.
IVATTS, OF SANDUSKY, OHIO.
ELECTRIC HEATING APPARATUS.
SPECIFICATION forming part of Letters Patent NO.'400,978, dated April 9, 1889.
Application filed November 22, 1888. Serial No. 291,553. (No model.)
To all whom, it hwy concern.-
Be it known that I, HENRY F. IVATTS, a citizen of the United States, residing in Sandusky, in the county of Erie and State of Ohio, have invented certain new and useful Improvements in Electric Heating Apparatus, of which the following is a specification.
My invention relates to electric heating apparatus, the object being to provide means whereby heat may be obtained through the energy of electric currents, and to make such heat available for all domestic purposes of cooking and heating.
The invention therefore consists of an electric coil or coils surrounding a magnetic core or cores and metallic plates placed in inductive relation with said core or cores. When alternating currents How in the coils, the metallic plates, by reason of the induced alternating currents generated therein, are raised rapidly to a high degree of temperature. This is utilized in a manner best suited to the purpose for which it is required.
In the accompanying drawings, Figure 1 represents a view of a section of what I term an electric oven, showing the circuits. Fig. 2 shows a modification of the heating apparatus; Fig. 3, a view of the single coil with plates and an ordinary resistance inserted to regulate the amount of current, and consequently resultant heat; and Fig. i is a View of the device when arranged to heat aliquid of any kind.
Referring to the drawings by letter, A A
represent a coil having a core of bunched wires B.
C O are plates, which are placed closely adjacent to either one or both ends of the cores of the coils. These plates and coils are supported in any suitable manner by a bracket or frame. If a number of coils are used, they are to be placed in a single circuit, and the circuit also includes an alternating-current generator.
It is obvious that when alternating currents flow through the coils the plates become the seat of induced alternating currents of much greater volu me, and they are therefore rapidly raised to a high temperature.
Referring more particularly to Fig. 1, the coils and plates are shown located in aboX or oven. Material to be cooked or heated is placed upon the plates, as illustrated. The heat may be regulated by an ordinary resistance, as is represented conventionally in Fig. 3; or the heat maybe controlled by placing in circuit a reaction-coil, F, (illustrated in Fig. 1.) This latter method of regulation is perhaps preferable to the ordinary resistance, inasmuch as it is less wasteful of energy.
I have described the magnet-cores as constructed of wires. They may also be solid metal, in which case the cores themselves are heated. The plates are also shown in one piece. They may be built up in any manner desired which maybe deemed best suited for the purpose. It is also obvious that the plate may serve-as the bottom of a vessel in which a liquid is heated, as shown in Fig. 4.
Having described my invention, I claim 1. In an electric heating apparatus, a coil or coils in which alternating currents flow, said coil or coils having magnetic cores, in combination with a metallic plate or plates arranged adjacent to the said cores, whereby the flow of said alternating currents will cause the heating of said plates.
2. In an electric oven, a coil or coils having magnetic cores, in combination with the metallic wall or walls of said oven,the said cores extending into close proximity to said wall or walls, whereby the flow of alternating currents in the coils will cause the walls of the oven to become heated.
In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.
HENRY F. WATTS.
\Vitnesses:
THOMAS MOKENNA, J OHN T. BEEcHEE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US400978A true US400978A (en) | 1889-04-09 |
Family
ID=2469936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US400978D Expired - Lifetime US400978A (en) | Electric heating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US400978A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2453994A (en) * | 1945-05-22 | 1948-11-16 | Rca Corp | High-frequency power output control |
| US2528798A (en) * | 1946-03-07 | 1950-11-07 | Sunbeam Corp | Control arrangement for a highfrequency heating device |
| US3790735A (en) * | 1971-10-06 | 1974-02-05 | Environment One Corp | Inductive heated bake oven |
| US4987828A (en) * | 1987-12-01 | 1991-01-29 | Electricite De France - Service National | Inductive heating apparatus for cooking thin dishes such as omelets, quiches or the like |
| US5872351A (en) * | 1996-12-20 | 1999-02-16 | Taco Bell Corporation | Domed induction oven |
| US10520199B2 (en) | 2017-03-08 | 2019-12-31 | Louis S. Polster | Methods and systems for heat treating a food product |
-
0
- US US400978D patent/US400978A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2453994A (en) * | 1945-05-22 | 1948-11-16 | Rca Corp | High-frequency power output control |
| US2528798A (en) * | 1946-03-07 | 1950-11-07 | Sunbeam Corp | Control arrangement for a highfrequency heating device |
| US3790735A (en) * | 1971-10-06 | 1974-02-05 | Environment One Corp | Inductive heated bake oven |
| US4987828A (en) * | 1987-12-01 | 1991-01-29 | Electricite De France - Service National | Inductive heating apparatus for cooking thin dishes such as omelets, quiches or the like |
| US5872351A (en) * | 1996-12-20 | 1999-02-16 | Taco Bell Corporation | Domed induction oven |
| US10520199B2 (en) | 2017-03-08 | 2019-12-31 | Louis S. Polster | Methods and systems for heat treating a food product |
| US11674691B2 (en) | 2017-03-08 | 2023-06-13 | Mary Noel Henderson | Methods and systems for heat treating a food product |
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