GB1194084A - Improvements in or relating to Apparatus for Heating Dielectrics and Poor Conductors - Google Patents

Improvements in or relating to Apparatus for Heating Dielectrics and Poor Conductors

Info

Publication number
GB1194084A
GB1194084A GB1822968A GB1822968A GB1194084A GB 1194084 A GB1194084 A GB 1194084A GB 1822968 A GB1822968 A GB 1822968A GB 1822968 A GB1822968 A GB 1822968A GB 1194084 A GB1194084 A GB 1194084A
Authority
GB
United Kingdom
Prior art keywords
helix
cavity
heating
cylinder
capacitor
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
Application number
GB1822968A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from FR103211A external-priority patent/FR1527115A/en
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1194084A publication Critical patent/GB1194084A/en
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)

Abstract

1,194,084. Microwave heating. COMMISSARIAT A L'ENERGIE ATOMIQUE. 17 April, 1968 [18 April, 1967; 6 Nov., 1967], No. 18229/68. Heading H5H. [Also in Division H1] Apparatus for heating insulators and poor conductors by high-frequency dielectric loss comprises a cavity resonator formed by a conductive helix 2 arranged coaxially within and electrically connected to a conductive cylinder 21, the cavity being supplied by an oscillator 7 which is sustained by reactive power from the cavity. As shown, the cylinder 1 is earthed and connected at 5 to one end of the helix 2 and the helix is connected to the anode P through capacitor 8. The helix 2 is hollow and watercooled. An automatic tuning capacitor 9 adjusts the oscillator frequency to the resonant frequency of the cavity. A connection 10 formed anywhere on helix 2 enables it to be connected to grid G through capacitor 11 and to earth via the series-connected inductance 12, ammeter 13 and resistance 14. The cavity acts as a quarter-wave resonator. In Fig. 3 (not shown), the helix 2 is connected at both ends to cylinder 1 and the cavity acts as a half-wave resonator. A supporting dielectric tube 3 may be provided for helix 2. Work 4 may be screwed into the helix or it may be rotated and/or moved axially in the helix. The cylinder 1 may be closed at both ends and evacuated or filled with gas under pressure. The cavity may be used to obtain single crystals of alumina, titanium oxide or barium titanate. The apparatus can be used for sintering ceramics, heating plastics for moulding and shaping, continuously heating frozen food, ionizing gas or for heating babies' feeding bottles.
GB1822968A 1967-04-18 1968-04-17 Improvements in or relating to Apparatus for Heating Dielectrics and Poor Conductors Expired GB1194084A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR103211A FR1527115A (en) 1967-04-18 1967-04-18 Method and device for heating by dielectric losses at high frequency
FR127122A FR93390E (en) 1967-04-18 1967-11-06 Method and device for heating by dielectric losses at high frequency.

Publications (1)

Publication Number Publication Date
GB1194084A true GB1194084A (en) 1970-06-10

Family

ID=26175718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1822968A Expired GB1194084A (en) 1967-04-18 1968-04-17 Improvements in or relating to Apparatus for Heating Dielectrics and Poor Conductors

Country Status (6)

Country Link
BE (1) BE713475A (en)
CH (1) CH492377A (en)
ES (1) ES352872A1 (en)
FR (1) FR93390E (en)
GB (1) GB1194084A (en)
LU (1) LU55815A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315022A1 (en) * 1972-03-27 1973-10-18 Oreal METHOD AND DEVICE FOR RELEASING OR TRANSPOSITION OF ELECTROMAGNETIC HIGH FREQUENCY ENERGY IN VARIOUS SUBSTANCES
US4221948A (en) * 1976-11-17 1980-09-09 Jean Olivier A L Apparatus for subjecting a material to electromagnetic waves
DE3148538A1 (en) * 1981-12-08 1983-06-16 Weto Wärmetechnik- und Electronic-Vertriebsges. mbH, 2000 Hamburg Method and device for drying hair curls by means of HF- or microwaves
EP2239995A1 (en) * 2009-04-07 2010-10-13 Christian Zignani Device for heating a fluid for household or industrial use or for heating premises, using microwaves as its energy source

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674721B1 (en) * 1991-03-29 1993-06-04 Alcatel Fibres Optiques DEVICE FOR HEATING AN OPTICAL FIBER IN SILICA ON A FIBRATION INSTALLATION.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315022A1 (en) * 1972-03-27 1973-10-18 Oreal METHOD AND DEVICE FOR RELEASING OR TRANSPOSITION OF ELECTROMAGNETIC HIGH FREQUENCY ENERGY IN VARIOUS SUBSTANCES
US4221948A (en) * 1976-11-17 1980-09-09 Jean Olivier A L Apparatus for subjecting a material to electromagnetic waves
DE3148538A1 (en) * 1981-12-08 1983-06-16 Weto Wärmetechnik- und Electronic-Vertriebsges. mbH, 2000 Hamburg Method and device for drying hair curls by means of HF- or microwaves
EP2239995A1 (en) * 2009-04-07 2010-10-13 Christian Zignani Device for heating a fluid for household or industrial use or for heating premises, using microwaves as its energy source

Also Published As

Publication number Publication date
BE713475A (en) 1968-08-16
FR93390E (en) 1969-03-21
LU55815A1 (en) 1968-06-28
ES352872A1 (en) 1969-10-01
CH492377A (en) 1970-06-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees