SU466688A3 - Installation for continuous heating of long products with elements of insulating material - Google Patents
Installation for continuous heating of long products with elements of insulating materialInfo
- Publication number
- SU466688A3 SU466688A3 SU1316452A SU1316452A SU466688A3 SU 466688 A3 SU466688 A3 SU 466688A3 SU 1316452 A SU1316452 A SU 1316452A SU 1316452 A SU1316452 A SU 1316452A SU 466688 A3 SU466688 A3 SU 466688A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- installation
- insulating material
- elements
- continuous heating
- long products
- Prior art date
Links
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
- H05B6/64—Heating using microwaves
- H05B6/78—Arrangements for continuous movement of material
- H05B6/788—Arrangements for continuous movement of material wherein an elongated material is moved by applying a mechanical tension to it
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
- B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/91—Heating, e.g. for cross linking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3462—Cables
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Electromagnetism (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
причем матрица может располагатьс непосредственно на входе в предложенную установку .moreover, the matrix can be located directly at the entrance to the proposed installation.
Установка содержит генератор 6 колебаний СВЧ, состо щий из магнетрона, антенна 7 которого расположена в волноводе 8 пр моугольного сечени . Волновод соединен с кожухом 9, имеющим цилиндрическую форму. Внутри кожуха укреплены по меньшей мере две концентричные последнему трубы 10 и 11. Концы волновода 8 замкнуты короткозамыкател ми 12 и 13, а трубы 10 и 11 укреплены в кожухе 9 кольцами 14 и 15 из токопровод щего материала и кольцами 16 и 17 из материала , прозрачного дл волн СВЧ, например из политетрафторэтилена, между которыми в кожухе образуетс камера 18, поскольку трубы 10 и 11 установлены в кожухе с зазором. Кольца 16 и 17 установлены подвижно в осевом направлении и перемещаютс с помощью элементов 19, перекрывающих хот бы частично прорези 20 в кожухе.The installation comprises a microwave oscillator 6, consisting of a magnetron, the antenna 7 of which is located in a waveguide 8 of rectangular section. The waveguide is connected to a housing 9 having a cylindrical shape. At least two concentric tubes 10 and 11 are reinforced inside the casing. The ends of the waveguide 8 are short-circuited 12 and 13, and the tubes 10 and 11 are fixed in the casing 9 by rings 14 and 15 of conductive material and rings 16 and 17 of transparent material for microwave waves, such as polytetrafluoroethylene, between which chamber 18 is formed in the casing, since pipes 10 and 11 are installed in the casing with a gap. The rings 16 and 17 are movably mounted in the axial direction and are moved by means of elements 19, which overlap at least partially the slots 20 in the casing.
С целью обеспечени соосности перемещени издели , покрытого изол ционным материалом , и снижени трени покрыти о трубы 10 и И, внутри последних устанавливают сменные втулки 21.In order to ensure the coaxiality of the movement of the product coated with insulating material and reduce the friction of the coating on the pipes 10 and I, replaceable sleeves 21 are installed inside the latter.
Волновод 8 может быть представлен по эквивалентной электрической схеме как контур RC, т. е. цепь индуктивного и емкостного сопротивлени с тем же характерным полным сопротивлением, что и магнетрон. Часть покрыти 2, котора охватывает коаксиальную камеру 18, раздел ющую оба сердечника, вл етс емкостью Со, поскольку эта часть поглощает энергию, излучаемую магнетроном в виде электромагнитных волн. В св зи с этим согласуют параметры схемы, что осуществл етс , как показано на фиг. 2, с помощью трансформатора Т и блока конденсаторов и катущек индуктивности Сь С, LI, L.Waveguide 8 can be represented by an equivalent electric circuit as an RC circuit, i.e., an inductive and capacitive impedance circuit with the same characteristic impedance as the magnetron. The part of coating 2 which encloses the coaxial chamber 18 separating both cores is the capacity of Co, since this part absorbs the energy emitted by the magnetron in the form of electromagnetic waves. In this connection, the parameters of the circuit are coordinated, which is carried out as shown in FIG. 2, using a transformer T and a block of capacitors and inductors Cc C, LI, L.
,В качестве регулирующих элементов при -ЭТОМ могут использоватьс подвижные кольца 16л 17., As the regulatory elements at -TOM, movable rings 16l 17 can be used.
Полное сопротивление цепи при этом должно также урегулироватьс элементами 12, 13 (или 14, 15).The impedance of the circuit must also be regulated by the elements 12, 13 (or 14, 15).
Известно, что электрическое поле в устройстве имеет вид, изображенный стрелками на фиг. 1. При этом поле (частотой пор дка 2500 МГЦ) поглощаетс изол ционным покрытием .It is known that the electric field in the device has the form shown by the arrows in FIG. 1. In this case, the field (frequency of about 2500 MHz) is absorbed by the insulating coating.
Больщое значение имеют размеры камеры 18, в частности зазор между трубами 10 и 11, которые выбираютс в зависимости от частоты и размеров (толщины) изол ционного покрыти издели .The dimensions of the chamber 18 are of great importance, in particular the gap between the pipes 10 and 11, which are selected depending on the frequency and size (thickness) of the insulation coating of the product.
Например, при обработке покрыти кабелей диаметрами от 10 до 60 мм затрачиваема мощность составл ет около 2 квт, рассто ние между сердечниками может быть пор дка 20 мм, длина кожуха - 250-500 мм при диаметре 50-80 мм.For example, when processing a coating of cables with diameters from 10 to 60 mm, the consumed power is about 2 kW, the distance between the cores can be about 20 mm, the length of the casing - 250-500 mm with a diameter of 50-80 mm.
Дл обработки кабел с диаметром 6,5- 20,5 мм используетс устройство с внутренними коаксиальными трубами 21-26 мм, кожух в виде трубы 65/70 мм при толщине пластинок 16 и 17 пор дка 3 мм.For processing a cable with a diameter of 6.5-20.5 mm, a device with internal coaxial pipes of 21-26 mm is used, the casing in the form of a pipe is 65/70 mm with a plate thickness of 16 and 17 of about 3 mm.
Кабель, И1 {еющий металлический сердечник диаметром от 9 мм с синтетическим покрытием до 12,5 мм Б диаметре, может обрабатыватьс в устройстве со следующими параметрами: полное сопротивление на отсечку л 110 ом; толщина пластинок дл согласовани полного сопротивлени (поз. 16 и 17) - 13,3 мм; внутренние коаксиальные трубы диаметром- 13/16 мм; кожух диаметром - 40/50 мм. Конструкци установки, изображенной наA cable I1 {a metal core with a diameter of 9 mm with a synthetic coating up to 12.5 mm B in diameter can be processed in a device with the following parameters: cut-off impedance l 110 ohm; plate thickness for impedance matching (pos. 16 and 17) —13.3 mm; internal coaxial pipes with a diameter of 13/16 mm; casing diameter - 40/50 mm. The installation design depicted on
фиг. 3, в основном аналогична конструкции, описанной выще. Ее отличие состоит лищь в том, что СВЧ генератор и согласованна нагрузка св заны с кожухом и внутренними коаксиальными трубами отрезками коаксиальных проводников 22, 23, 24 и 25, причем магнетрон соединен с кожухом и одной из коаксиальных труб, а дл согласовани параметров схемы на другой паре коаксиальных проводников предусмотрена пластина 26.FIG. 3, basically similar to the construction described above. Its difference lies in the fact that the microwave generator and the matched load are connected to the casing and internal coaxial tubes with pieces of coaxial conductors 22, 23, 24 and 25, the magnetron being connected to the casing and one of the coaxial tubes, and a pair of coaxial conductors is provided for plate 26.
С целью повыщени скорости обработки, а также полной загрузки СВЧ генератора устройство может иметь несколько камер 18 с промежутками между коаксиальными трубами , в каждой из которых последовательно осуществл етс обработка издели . При этом установка может быть выполнена в виде нескольких последовательно установленных устройств , аналогичных описанным выще.In order to increase the processing speed, as well as to fully load the microwave generator, the device can have several chambers 18 with gaps between the coaxial tubes, in each of which the product is processed sequentially. In this case, the installation can be performed in the form of several devices installed in series, similar to those described above.
Установка позвол ет также вести обработку изделий в газовой среде, например в атмосфере азота.The apparatus also allows the treatment of products in a gaseous environment, for example under a nitrogen atmosphere.
Предме: изобретени Predme: inventions
Установка дл непрерывного нагрева дллнномерного издели с элементами из изол ционного материала, преимущественно в процессе изготовлени , содержаща внещнюю цилиндрическую камеру с примыкающими к боКОБОЙ поверхности волноводами, преимущественно пр моугольными, подключенными к СВЧ-генератору и согласованной нагрузке, а также внутреннее коаксиальное устройство, выполненное из токопровод щего материала,An installation for continuous heating of a dll-dimensional product with elements of an insulating material, mainly in the manufacturing process, comprising an external cylindrical chamber with adjacent wavelengths, mainly rectangular, connected to a microwave generator and a matched load, as well as an internal coaxial device made of conductive material
приспособление дл перемещени издели по продольной оси устройства, отличающа с тем, что, с целью повышени эффективности нагрева изол ционного материала, наложенного на сердечник с металлическим элементом , например, вулканизации покрыти кабельного издели , указанное устройство выполнено в виде разделенных промежутком труб, св занных с упом нутой камерой со сторон , противоположных промежутку кольцамиdevice for moving the product along the longitudinal axis of the device, characterized in that, in order to increase the heating efficiency of the insulating material superimposed on the core with a metal element, for example, vulcanization of the cable product, the device is made in the form of spaced pipes connected with mentioned by the camera on the opposite sides of the gap rings
из токопровод щего материала, а со стороны промежутка - кольцами из изол ционного материала, прозрачного дл БОЛН СВЧ, например политетрафторэтилена, установлен ными преимущественно с возможностью осевого перемещени .from the conductive material, and from the side of the gap - rings of insulating material that is transparent for microwave FIRMS, for example polytetrafluoroethylene, installed mainly with the possibility of axial movement.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR146502 | 1968-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
SU466688A3 true SU466688A3 (en) | 1975-04-05 |
Family
ID=8648413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1316452A SU466688A3 (en) | 1968-03-29 | 1969-03-28 | Installation for continuous heating of long products with elements of insulating material |
Country Status (11)
Country | Link |
---|---|
US (1) | US3553413A (en) |
BE (1) | BE730443A (en) |
CH (1) | CH508330A (en) |
DE (1) | DE1915342A1 (en) |
FR (1) | FR1569046A (en) |
GB (1) | GB1240903A (en) |
HU (1) | HU166310B (en) |
NL (1) | NL6904630A (en) |
PL (1) | PL72629B1 (en) |
SE (1) | SE340664B (en) |
SU (1) | SU466688A3 (en) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3731038A (en) * | 1971-02-22 | 1973-05-01 | Patents And Dev Ltd | Zero-mode microwave applicator |
US4065654A (en) * | 1975-12-01 | 1977-12-27 | Chemetron Corporation | Microwave oven adjusting (energy distribution) and tuning arrangement |
DE2642335C2 (en) * | 1976-09-21 | 1978-12-21 | Ingenieurbuero Hermann Purfuerst Kg, 3004 Isernhagen | Device for continuous dielectric heating by means of microwave energy |
FR2410932A1 (en) * | 1979-03-16 | 1979-06-29 | Cim Lambda Int Sarl | Microwave chamber with adjustable extensions - to permit tuning for heating differing profiles or materials, used esp. to cure rubber or crosslinked plastics |
FR2458610A1 (en) * | 1979-06-07 | 1981-01-02 | Anvar | Thermal yarn processing unit |
DE2943300A1 (en) * | 1979-10-26 | 1981-05-14 | Paul Troester Maschinenfabrik, 3000 Hannover | Crosslinking system for cable insulation of plastics or rubber - uses UHF applicator with supply conductor UHF generator and resonator chambers |
SE419494B (en) * | 1979-12-21 | 1981-08-03 | Husqvarna Ab | MICROWAG TYPE FLOW HEATER CONTAINING A CYLINDRIC MICROWAG APPLICATOR |
DE3033012A1 (en) * | 1980-09-02 | 1982-04-01 | Paul Troester Maschinenfabrik, 3000 Hannover | DEVICE FOR DRY CROSSLINKING STRINGS OF ELASTOMERS |
FR2541626B1 (en) * | 1983-02-25 | 1985-10-11 | Meo Robert Di | PROCESS FOR PRODUCING A MOLDED PROFILE IN MINERAL, VEGETABLE OR SYNTHETIC PARTICLES OR FIBERS AND DEVICE FOR CARRYING OUT SAID METHOD |
CA1271316A (en) * | 1984-12-21 | 1990-07-10 | Koichi Abe | Optical waveguide manufacture |
FR2584258B1 (en) * | 1985-06-28 | 1995-04-14 | Elf Aquitaine | METHOD AND DEVICE FOR THE HEAT TREATMENT OF A CONDUCTIVE ELEMENT AT LEAST PARTIALLY CONSISTING OF A CONDUCTIVE MATERIAL |
ES2018519B3 (en) * | 1986-08-29 | 1991-04-16 | American Telephone & Telegraph Company | SOOTH COATING METHOD OF AN OPTICAL PREFORM. |
JPS641526A (en) * | 1987-04-27 | 1989-01-05 | Toyo Cloth Kk | Molding of composite material by means of ultra-violet ray curing |
WO1989010678A1 (en) * | 1988-04-19 | 1989-11-02 | Deakin University | Improved microwave treatment apparatus |
JPH04333041A (en) * | 1991-05-09 | 1992-11-20 | Konica Corp | Method of making sol from photographic composition gel |
CN1066604C (en) * | 1993-05-05 | 2001-05-30 | 希巴特殊化学控股公司 | Process and plant for the manufacture of solid castings from an essentially liquid reactive medium, and oven for heating an essentially liquid medium |
JP3077879B2 (en) * | 1994-02-15 | 2000-08-21 | インターナショナル・ビジネス・マシーンズ・コーポレ−ション | Apparatus and method for applying microwave energy to a web-type quantified processing material |
US5998774A (en) * | 1997-03-07 | 1999-12-07 | Industrial Microwave Systems, Inc. | Electromagnetic exposure chamber for improved heating |
US6265702B1 (en) | 1999-04-28 | 2001-07-24 | Industrial Microwave Systems, Inc. | Electromagnetic exposure chamber with a focal region |
DE102006033461A1 (en) * | 2006-07-19 | 2008-01-31 | Siemens Ag | Radial gap measurement on turbines |
CN101197201B (en) * | 2007-12-27 | 2011-01-12 | 长江电缆有限公司 | Method for producing microwave vulcanization rubber-sheathed cable |
DE102009005358A1 (en) | 2009-01-16 | 2010-07-22 | Krones Ag | Resonator unit, expansion method and apparatus for heating containers |
JP5787289B2 (en) * | 2011-06-20 | 2015-09-30 | ミクロ電子株式会社 | Heating device using microwaves |
CN102758271B (en) * | 2012-07-30 | 2014-05-28 | 广州赛奥碳纤维技术有限公司 | High-temperature carbide furnace capable of producing carbon fibers in large scale |
CN102797075B (en) * | 2012-09-06 | 2014-05-28 | 广州赛奥碳纤维技术有限公司 | Continuous graphitizing ultra-high temperature tube furnace |
CN104332257B (en) * | 2014-10-29 | 2016-08-24 | 江苏俊知技术有限公司 | A kind of vacuum microwave drying method of high temperature resistant communication cable insulating technique and dried recovered recycling processing means thereof |
CN111899949A (en) * | 2020-08-31 | 2020-11-06 | 晶锋集团股份有限公司 | Surface water removal device for cable production line |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3457385A (en) * | 1966-07-07 | 1969-07-22 | Canadian Patents Dev | Apparatus for dielectric heating |
US3465114A (en) * | 1966-09-19 | 1969-09-02 | Canadian Patents Dev | Method and apparatus for dielectric heating |
US3461261A (en) * | 1966-10-31 | 1969-08-12 | Du Pont | Heating apparatus |
-
1968
- 1968-03-29 FR FR146502A patent/FR1569046A/fr not_active Expired
-
1969
- 1969-03-20 CH CH419069A patent/CH508330A/en not_active IP Right Cessation
- 1969-03-21 SE SE04035/69A patent/SE340664B/xx unknown
- 1969-03-26 NL NL6904630A patent/NL6904630A/xx unknown
- 1969-03-26 DE DE19691915342 patent/DE1915342A1/en active Pending
- 1969-03-26 BE BE730443D patent/BE730443A/xx unknown
- 1969-03-26 PL PL1969132597A patent/PL72629B1/pl unknown
- 1969-03-26 GB GB05872/69A patent/GB1240903A/en not_active Expired
- 1969-03-27 US US810992A patent/US3553413A/en not_active Expired - Lifetime
- 1969-03-28 SU SU1316452A patent/SU466688A3/en active
- 1969-03-29 HU HUSO941A patent/HU166310B/hu unknown
Also Published As
Publication number | Publication date |
---|---|
HU166310B (en) | 1975-02-28 |
SE340664B (en) | 1971-11-29 |
DE1915342A1 (en) | 1969-10-09 |
BE730443A (en) | 1969-09-01 |
NL6904630A (en) | 1969-10-01 |
US3553413A (en) | 1971-01-05 |
CH508330A (en) | 1971-05-31 |
FR1569046A (en) | 1969-05-30 |
PL72629B1 (en) | 1974-08-30 |
GB1240903A (en) | 1971-07-28 |
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