DE2009015A1 - Induktor - Google Patents
InduktorInfo
- Publication number
- DE2009015A1 DE2009015A1 DE19702009015 DE2009015A DE2009015A1 DE 2009015 A1 DE2009015 A1 DE 2009015A1 DE 19702009015 DE19702009015 DE 19702009015 DE 2009015 A DE2009015 A DE 2009015A DE 2009015 A1 DE2009015 A1 DE 2009015A1
- Authority
- DE
- Germany
- Prior art keywords
- shells
- inductor
- inductor according
- outer edges
- electrical contact
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 3
- 239000012212 insulator Substances 0.000 claims abstract 4
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 229920003319 Araldite® Polymers 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000012811 non-conductive material Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000005266 casting Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 239000011231 conductive filler Substances 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000007669 thermal treatment Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 241000251730 Chondrichthyes Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000010957 pewter Substances 0.000 description 1
- 229910000498 pewter Inorganic materials 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
- B30B15/022—Moulds for compacting material in powder, granular of pasta form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/06—Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
-
- 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
- H05B6/36—Coil arrangements
- H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Coils Or Transformers For Communication (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Soft Magnetic Materials (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- General Induction Heating (AREA)
Abstract
Description
Induktor Es ist bekannt, Magnetpulver, ferromagnetische Metalle oder leitende Stoffe in wenig oder nicht elektrisch leitende Substanzen einsubringen und diese Mischungen einem elektromagnetisoben Wechselfeld zu unterwerfen, um sie zu erhitzen und dadurch flüssig zu machen, zu vulkanisieren vulkanisieren, zu polymerisieren oder zu trocknen und dergleichen. Inductor It is known to be magnetic powder, ferromagnetic metals or Bring conductive substances into low or non-conductive substances and to subject these mixtures to an alternating electromagnetic field in order to produce them to heat and thereby make it liquid, to vulcanize vulcanize, to polymerize or dry and the like.
Die Erfindung bezweckt die Schaffung eines Induktors, welcher für dieses Verfahren in dem Fall anwendbar ist, daß die thermische Behandlung des mit ferromagnetischen oder leitenden Teilchen beladenen Stoffes in zinn Bohälter, wie in einer Gußform, der Kammer einer 8chraubenpumpe, einem SpitzmundstUck und dergleichen, stattfindet.The invention aims to provide an inductor which for this method is applicable in the event that the thermal treatment of the with ferromagnetic or conductive particles loaded substance in pewter drills, such as in a mold, the chamber of a screw pump, a pointed mouthpiece and the like, takes place.
Der erfindungsgemäße Induktor ist dadurch gekennzeichnet, daß er zusammen mit der Isolierung zwischen seinen Leitern den Behälter bildet, in welchem das mit rerromagnetischen oder leitenden Teilchen gerillte Material der Wärmebehandlung unterworfen wird.The inductor according to the invention is characterized in that it together with the insulation between its conductors forms the container in which the with rerromagnetic or conductive particles grooved material of heat treatment is subjected.
Anhand der Figuren wird die Erfindung beispieliweis.The invention is illustrated by way of example with the aid of the figures.
näher erläutert. Die Figuren 1, 2 und 3 zeigen Schnitte durch den erfindungsgemäßen Induktor.explained in more detail. Figures 1, 2 and 3 show sections through the inductor according to the invention.
Gemäß Figur 1 bestehen zwei elektrisch leitende Halbschalen oder Backen 1 und 2 beispielsweise aus Aluminiumgußteilen. Sie haben, grob gesagt, di. Form eines hohlen Rings, welcher in seiner Symmetrieebene senkrecht nur Achse 3 durchschnitten ist. Jedoch rind die beiden Halbschalen notwendigerweise nicht vollständig symmetrisch.According to Figure 1, there are two electrically conductive half-shells or jaws 1 and 2, for example, made of cast aluminum. You have, roughly speaking, di. shape a hollow ring, which perpendicularly only intersected axis 3 in its plane of symmetry is. However, the two half-shells are not necessarily completely symmetrical.
Zwischen den inneren Rändern der beiden Halb schalen 1 und 2 ist ein isolierender Ring 4 angeordnet, welcher eine elektrische Isolierung zwischen den der Stromzuführung dienenden Leitern bildet. Der Ring 4 wird von einer orrnung rung durchsetzt, in welcher eine nicht dargestellte Pipette angeordnet ist, welche die Erzeugung eines Drucks im Inneren der zusammengebauten Haibschälen ermOglicht. Der isolierende Ring 4 kann aus einem gegen hohe Temperaturen beständigen Elastomer bestehen. Die äußeren Ränder der beiden Halbschalen 1 und 2 weisen Einrichtungen auf, die einen guten elektrischen Kontakt zwischen denselben gewährleisten, beispielsweise einen kleinen Vordtirung 5 an der Halbschale 2, welcher sich längs des inneren Umfangs des äußeren Randes erstreckt.Between the inner edges of the two half-shells 1 and 2 is a insulating ring 4 arranged, which provides electrical insulation between the forms the power supply serving conductors. The ring 4 is of an orrnung tion interspersed, in which a pipette, not shown, is arranged, which the Creation of a pressure in the interior of the assembled shark shells enables. Of the insulating ring 4 can be made of an elastomer which is resistant to high temperatures exist. The outer edges of the two half-shells 1 and 2 have facilities that ensure good electrical contact between them, for example a small protrusion 5 on the half-shell 2, which extends along the inner circumference of the outer edge extends.
Wenn die Halbschalen 1 und 2 aus Aluminium bestehen, werden die Kontakt fläche des Vorsprungs 5 und die gegen-Uberliegende Kontaktfläche an der Halb schale 1 mit einer dünnen Schicht aus Kontaktmetall überzogen, dessen Leitfähigkeitseigenschaften vom Schwefel nicht zerstört werden, beispielsweise Gold.If the half-shells 1 and 2 are made of aluminum, the contact surface of the projection 5 and the opposite contact surface on the half-shell 1 covered with a thin layer of contact metal, its conductivity properties cannot be destroyed by sulfur, for example gold.
Es ist auch möglich, eine große Reihe von Kontaktfedern 6 vorzusehen, welche in gleichen Abständen längs des inneren Umfangs des äußeren Randes einer (2) der beiden Halbschalen angeordnet sind, wie beispielsweise in Figur 2 gezeigt. Diese Federn 6 können beispielsweise aus Bronze bestehen und an einem in die andere Halbschale (1) eingesetzten Kupferband 7 anliegen.It is also possible to provide a large number of contact springs 6, which at equal intervals along the inner circumference of the outer edge of a (2) of the two half-shells are arranged, as shown for example in FIG. These springs 6 can for example consist of bronze and one in the other Half-shell (1) inserted copper tape 7 rest.
Die beiden Halbschalen 1 und 2 sind durch ihre inneren Ränder mit Hochfrequenz-Stromzuleitungen 8 und9verbunden. Diese Zuleitungen konnen Ringkorper sein, welche einen gleichförmigen elektrischen Kontakt längs des ganzen inneren Randes Jeder Halbschale gewährleisten, oder sie können aus einer=Vielzahl von Kontaktfingern bestehen bestehen, welche in gleichen Abständen längs der inneren Ränder der Halbschalen angeordnet sind.The two half-shells 1 and 2 are with their inner edges High-frequency power supply lines 8 and 9 connected. These leads can be toroid having a uniform electrical contact along the whole interior Ensure the edge of each half-shell, or they can be made up of a large number of contact fingers exist consist, which are equidistant along the inner Edges of the half-shells are arranged.
Der Hochfrequenzstrom wird vorzugsweise in einem Transrormator 10 erzeugt, welcher in unmittelbarer Nachbarschaft des Rings angeordnet ist. Bei einer besonders vorteilhaften Ausführungsform ist der Transformator 10 torusförmig ausgebildet und weist eine aus einer groben Anzahl von Windungen bestehende innere Primärwicklung 11 sowie eine äußere Sekundärwicklung 12 auf, welche aus einem Torus besteht, der längs zweier paralleler Kreise aufgeschnitten und an dieser Stelle an die zwei Ringkörper 8 und 9 angeschweißt ist. Einer der beiden Ringkörper (9) kann beispielsweise durch Schrauben ständig an einer der Halbschalen (2) mittels eines Flansches 13 befestigt sein, während das Ende des anderen Ringkörpers, da mit der anderen Halbschale (1) in Berührung steht, in eine Vielzahl von Kontakt fingern 14 aufgeschlitzt sein kann, welche an den anderen Ringkörper mittels eines von einer pneumatischen Einrichtung 16 betätigten konischen Kolbens 15 angedrückt werden.The high-frequency current is preferably supplied in a transformer 10 generated, which is arranged in the immediate vicinity of the ring. At a In a particularly advantageous embodiment, the transformer 10 is designed in a toroidal shape and has an inner primary winding consisting of a large number of turns 11 and an outer secondary winding 12, which consists of a torus, the cut open along two parallel circles and at this point on the two ring bodies 8 and 9 is welded on. One of the two ring bodies (9) can, for example, through Screws permanently attached to one of the half-shells (2) by means of a flange 13 while the end of the other ring body, as with the other half-shell (1) is in contact, can be slit into a plurality of contact fingers 14, which to the other ring body by means of one of a pneumatic device 16 actuated conical piston 15 are pressed.
Im Inneren des hohlen Ringes sind Profilkörper 17 vorgesehen, welche aus einem elektrisch nicht leitenden Material hergestelLt sind und einen Wärmewiderstand dardellen Sie können beispielsweise aus Araldit mit einer Füllung von Quarz bestehen, welches bis wenigstens 1500 C beständig ist. Es ist auch möglich, dieselben aus einem anderen warmhärtbaren, mit einem ferromagnetischen oder elektrisch leitenden Pulver gefüllten Material hersustellen. Außerdem können diese Formkörper durch Glasfasern fasern oder auch durch Gewebe aus diesem Material verstrikt werden.In the interior of the hollow ring profile body 17 are provided which are made of an electrically non-conductive material and have a thermal resistance dardels For example, they can be made of araldite with a filling of quartz, which is resistant up to at least 1500 C. It is also possible to do the same another thermosetting, with a ferromagnetic or electrically conductive one Prepare powder-filled material. In addition, these moldings can be made by glass fibers fibers or can be reinforced by fabric made of this material.
Figur 3 zeigt eine besonders vorteilhafte Ausführungsform des erfindungsgemäßen Induktors.Figure 3 shows a particularly advantageous embodiment of the invention Inductor.
Ein Spiraleninduktor mit vollem Leiter 17 ist in eine Schicht 18 aus isolierendem Material, beispielsweise Polytetrafluoräthylen (teflon) eingebettet. Die Schicht 18 umgibt den Leiter 17 vollständig und besitzt eine zur Ausbildung einer Form geeignete Innenfläche. Die aus Induktor und isolierendem Material bestehende Anordnung wird von einem äußeren Verstärkungsrohr 19 gehalten, welches beispielsweise aus Porzellan besteht. Dieses Rohr 19 kann auch durch die Klemmbacken eines Spannwerkzeugs ersetzt werden. Der Zweck desselben besteht darin, zu vermeiden, daß der Induktor 17 sich während der Ausbildung eines Drucks in seinem Inneren öffnet. Wenn der Druck Null oder minimal ist, sind äußere Spanneinrichtungen, wie beispielsweise das Rohr 19, nicht erforderlich. Um einen Guß oder ein Pressen im Inneren des Induktors 17 zu ermöglichen, sind ein unterer Kolben 20 und ein oberer Kolben 21 vorgesehen. Diese Kolben können vorzugsweise aus einem sowohl elektrisch als auch thermisch isolierenden Material bestehen. Es ist jedoch auch möglich, Teile 20 und 21 vorzuSehen, welche eine ausreichende elektrische Leitfähigkeit oder ausreichende Magnetisierungsverluste aufweisen, so daß ungefahr die gleiche spezifische Erwärmung erzeugt wird wie in der zu behandelnden Masse.A spiral inductor with full conductor 17 is made of a layer 18 insulating material, such as polytetrafluoroethylene (teflon) embedded. The layer 18 completely surrounds the conductor 17 and has one for training inner surface suitable for a shape. The one consisting of inductor and insulating material Arrangement is held by an outer reinforcing tube 19, which for example made of porcelain. This tube 19 can also through the clamping jaws of a clamping tool be replaced. The purpose of this is to avoid the inductor 17 opens during the development of a pressure in its interior. When the pressure Is zero or minimal are external tensioning devices such as the pipe 19, not required. To cast or press inside the inductor 17 To enable a lower piston 20 and an upper piston 21 are provided. These pistons can preferably be made of one both electrically and thermally insulating material. However, it is also possible to provide parts 20 and 21, which have sufficient electrical conductivity or sufficient magnetization losses so that approximately the same specific heating is generated as in the mass to be treated.
Es ist auch möglich, einen hohlen Leiter 17 vorzusehen, und und in demselben entweder Wasser oder Dampf umzuwälzen, damit derselbe stets auf einer bestimmten Temperatur gehalten wird, welche vorzugsweise ungefähr gleich der Temperatur der im Inneren des Induktors durchgeführten thermischen Behandlung gewählt wird.It is also possible to provide a hollow conductor 17, and and to circulate either water or steam in the same, so that it is always on one certain temperature is maintained, which is preferably approximately equal to the temperature the thermal treatment carried out inside the inductor is selected.
PatentansprücheClaims
Claims (14)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE729001A BE729001A (en) | 1969-02-27 | 1969-02-27 | Inductor |
| BE82862 | 1969-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2009015A1 true DE2009015A1 (en) | 1970-10-01 |
Family
ID=27616948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19702009015 Pending DE2009015A1 (en) | 1969-02-27 | 1970-02-26 | Induktor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3705284A (en) |
| BE (2) | BE729001A (en) |
| CA (1) | CA916244A (en) |
| DE (1) | DE2009015A1 (en) |
| FR (1) | FR2032466A1 (en) |
| GB (1) | GB1300247A (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2637084A (en) * | 1983-07-28 | 1985-01-31 | Bixby International Corp. | Shoe stiffener |
| SE441074B (en) * | 1984-01-24 | 1985-09-09 | Akerlund & Rausing Ab | DEVICE WELDING DEVICE |
| US4749833A (en) * | 1987-08-07 | 1988-06-07 | Tocco, Inc. | Induction heating for adhesive bonding |
| US5087804A (en) * | 1990-12-28 | 1992-02-11 | Metcal, Inc. | Self-regulating heater with integral induction coil and method of manufacture thereof |
| US5808281A (en) * | 1991-04-05 | 1998-09-15 | The Boeing Company | Multilayer susceptors for achieving thermal uniformity in induction processing of organic matrix composites or metals |
| US5530227A (en) * | 1991-04-05 | 1996-06-25 | The Boeing Company | Method and apparatus for consolidating organic matrix composites using induction heating |
| US5591370A (en) * | 1991-04-05 | 1997-01-07 | The Boeing Company | System for consolidating organic matrix composites using induction heating |
| US5599472A (en) * | 1991-04-05 | 1997-02-04 | The Boeing Company | Resealable retort for induction processing of organic matrix composites or metals |
| US5420400A (en) * | 1991-10-15 | 1995-05-30 | The Boeing Company | Combined inductive heating cycle for sequential forming the brazing |
| US5728309A (en) * | 1991-04-05 | 1998-03-17 | The Boeing Company | Method for achieving thermal uniformity in induction processing of organic matrix composites or metals |
| US5624594A (en) * | 1991-04-05 | 1997-04-29 | The Boeing Company | Fixed coil induction heater for thermoplastic welding |
| US5641422A (en) * | 1991-04-05 | 1997-06-24 | The Boeing Company | Thermoplastic welding of organic resin composites using a fixed coil induction heater |
| US5645744A (en) * | 1991-04-05 | 1997-07-08 | The Boeing Company | Retort for achieving thermal uniformity in induction processing of organic matrix composites or metals |
| US7126096B1 (en) | 1991-04-05 | 2006-10-24 | Th Boeing Company | Resistance welding of thermoplastics in aerospace structure |
| US5710414A (en) * | 1991-04-05 | 1998-01-20 | The Boeing Company | Internal tooling for induction heating |
| US5410132A (en) * | 1991-10-15 | 1995-04-25 | The Boeing Company | Superplastic forming using induction heating |
| US5705794A (en) * | 1991-10-15 | 1998-01-06 | The Boeing Company | Combined heating cycles to improve efficiency in inductive heating operations |
| DE19646251C2 (en) * | 1996-11-08 | 1998-11-12 | Continental Ag | Pneumatic tire with means of obtaining information, its use and device for its manufacture |
| US6660122B1 (en) | 1998-09-04 | 2003-12-09 | The Goodyear Tire & Rubber Company | Induction curable tire components and methods of selectively curing such components |
| US6308758B1 (en) | 1999-07-06 | 2001-10-30 | Continental Ag | Elastomeric tire having magnetized sidewall and method of manufacturing same |
| FR2944225A1 (en) * | 2009-04-09 | 2010-10-15 | Jean Luc Mossotti | INDUCTION HEATING PRESS |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1380250A (en) * | 1919-10-22 | 1921-05-31 | Martin H Reymond | Process of molding or shaping parts in molds or dies |
| US2014332A (en) * | 1934-10-29 | 1935-09-10 | Pharis Tire And Rubber Company | Apparatus for vulcanizing rubber |
| US2372929A (en) * | 1941-04-01 | 1945-04-03 | Rca Corp | Composite structure |
| US2393541A (en) * | 1943-05-21 | 1946-01-22 | Induction Heating Corp | Composition adapted for inductive heating and method for using same |
| US2438952A (en) * | 1944-04-20 | 1948-04-06 | Gen Tire & Rubber Co | Method for curing pneumatic tires |
| FR955883A (en) * | 1947-07-05 | 1950-01-20 | ||
| US2738406A (en) * | 1951-09-20 | 1956-03-13 | Gen Precision Lab Inc | Radio frequency vulcanizing |
| US2611152A (en) * | 1951-12-01 | 1952-09-23 | Goodrich Co B F | Vulcanization of tires with highfrequency fields and apparatus therefor |
| US2875556A (en) * | 1953-07-31 | 1959-03-03 | Vig Corp | Apparatus for molding refractory materials |
| BE628509A (en) * | 1962-02-15 | |||
| US3391846A (en) * | 1963-08-08 | 1968-07-09 | Du Pont | Heating with antiferromagnetic particles in a high frequency magnetic field |
-
0
- CA CA916244A patent/CA916244A/en not_active Expired
-
1969
- 1969-02-27 BE BE729001A patent/BE729001A/en unknown
- 1969-12-17 BE BE743276A patent/BE743276R/en active
-
1970
- 1970-02-24 US US13434A patent/US3705284A/en not_active Expired - Lifetime
- 1970-02-26 DE DE19702009015 patent/DE2009015A1/en active Pending
- 1970-02-27 GB GB9592/70A patent/GB1300247A/en not_active Expired
- 1970-02-27 FR FR7007080A patent/FR2032466A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2032466A1 (en) | 1970-11-27 |
| US3705284A (en) | 1972-12-05 |
| BE729001A (en) | 1969-08-27 |
| CA916244A (en) | 1972-12-05 |
| BE743276R (en) | 1970-05-28 |
| GB1300247A (en) | 1972-12-20 |
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