GB556292A - Improvements in and relating to high frequency electric heating apparatus - Google Patents
Improvements in and relating to high frequency electric heating apparatusInfo
- Publication number
- GB556292A GB556292A GB1030542A GB1030542A GB556292A GB 556292 A GB556292 A GB 556292A GB 1030542 A GB1030542 A GB 1030542A GB 1030542 A GB1030542 A GB 1030542A GB 556292 A GB556292 A GB 556292A
- Authority
- GB
- United Kingdom
- Prior art keywords
- high frequency
- electric heating
- frequency electric
- members
- heating apparatus
- 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
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
- H05B6/46—Dielectric heating
- H05B6/48—Circuits
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Constitution Of High-Frequency Heating (AREA)
Abstract
556,292. High frequency electric heating. REDIFFUSION, Ltd., and ADORJAN, P. July 23, 1942, No. 10305. [Class 39 (iii)] In high frequency electric heating apparatus, e.g., for moulding plastics, industrial ovens, or therapeutical apparatus, employing a pair of spaced members 4, 5 between which material to be heated is located in a high frequency field, any variation in the distance between the members 4, 5 varies the electrical characteristics of the tuned circuit 7, 8, by varying the capacity between the members 4, 5. This is corrected and the tuning maintained by providing electrodes 12 movable with the member 4, associated with fixed electrodes 11, so that the total capacity remains unchanged by the movement. Other mechanical couplings between the plate 4 and the condenser may be employed, Figs. 2, 3 (not shown). In Fig. 4 a cam 25 on the plate 4 moves a rod 23 carrying the core 22 of a variable inductance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1030542A GB556292A (en) | 1942-07-23 | 1942-07-23 | Improvements in and relating to high frequency electric heating apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1030542A GB556292A (en) | 1942-07-23 | 1942-07-23 | Improvements in and relating to high frequency electric heating apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB556292A true GB556292A (en) | 1943-09-28 |
Family
ID=9965420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1030542A Expired GB556292A (en) | 1942-07-23 | 1942-07-23 | Improvements in and relating to high frequency electric heating apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB556292A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2467782A (en) * | 1947-09-20 | 1949-04-19 | Westinghouse Electric Corp | Dielectric heating means with automatic compensation for capacitance variation |
US2467783A (en) * | 1947-09-20 | 1949-04-19 | Westinghouse Electric Corp | Dielectric heating means and control therefor |
US2473143A (en) * | 1945-02-07 | 1949-06-14 | Singer Mfg Co | Electrostatic bonding machine |
US2504969A (en) * | 1946-07-06 | 1950-04-25 | Girdler Corp | High-frequency apparatus having two work-engaging electrodes and one adjustable electrode |
US2504956A (en) * | 1946-05-31 | 1950-04-25 | Girdler Corp | Combined heating electrodes and variable capacitor for dielectric heating |
US2504955A (en) * | 1945-06-01 | 1950-04-25 | Girdler Corp | High-frequency treating system for dielectric materials |
US2516324A (en) * | 1946-02-15 | 1950-07-25 | Rca Corp | Constant potential gradient dielectric heating device |
US2522823A (en) * | 1946-04-16 | 1950-09-19 | Union Special Machine Co | Automatic tuning of high-frequency electrical seaming apparatus |
US2546784A (en) * | 1948-02-12 | 1951-03-27 | Remington Rand Inc | Punch tape sensing condenser |
US2572226A (en) * | 1947-04-24 | 1951-10-23 | Raytheon Mfg Co | Welding of thermoplastic materials with application of highfrequency dielectric energy and pressure |
US2629812A (en) * | 1947-09-20 | 1953-02-24 | Westinghouse Electric Corp | Adjustable dielectric heating equipment |
US2678994A (en) * | 1951-03-30 | 1954-05-18 | Armstrong Cork Co | High-frequency power control device |
US2721924A (en) * | 1952-04-17 | 1955-10-25 | Armstrong Cork Co | Dielectric heating device for the edge gluing |
US2723334A (en) * | 1951-04-14 | 1955-11-08 | Westinghouse Electric Corp | Dielectric heating |
US2732474A (en) * | 1956-01-24 | ellsworth | ||
US2732473A (en) * | 1956-01-24 | ellsworth | ||
US2747067A (en) * | 1953-08-13 | 1956-05-22 | Nat Cylinder Gas Co | Voltage determining arrangement for dielectric heaters |
US2765388A (en) * | 1953-03-30 | 1956-10-02 | Nat Cylinder Gas Co | Apparatus for controlling oscillator grid drive |
US2783345A (en) * | 1954-03-26 | 1957-02-26 | Nat Cylinder Gas Co | High-frequency heating applicators |
US2824940A (en) * | 1953-10-14 | 1958-02-25 | North American Philps Company | High-frequency heating device |
US3281566A (en) * | 1963-11-27 | 1966-10-25 | Weldotron Corp | Electronic wood gluing and plastic bonding apparatus |
-
1942
- 1942-07-23 GB GB1030542A patent/GB556292A/en not_active Expired
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2732474A (en) * | 1956-01-24 | ellsworth | ||
US2732473A (en) * | 1956-01-24 | ellsworth | ||
US2473143A (en) * | 1945-02-07 | 1949-06-14 | Singer Mfg Co | Electrostatic bonding machine |
US2504955A (en) * | 1945-06-01 | 1950-04-25 | Girdler Corp | High-frequency treating system for dielectric materials |
US2516324A (en) * | 1946-02-15 | 1950-07-25 | Rca Corp | Constant potential gradient dielectric heating device |
US2522823A (en) * | 1946-04-16 | 1950-09-19 | Union Special Machine Co | Automatic tuning of high-frequency electrical seaming apparatus |
US2504956A (en) * | 1946-05-31 | 1950-04-25 | Girdler Corp | Combined heating electrodes and variable capacitor for dielectric heating |
US2504969A (en) * | 1946-07-06 | 1950-04-25 | Girdler Corp | High-frequency apparatus having two work-engaging electrodes and one adjustable electrode |
US2572226A (en) * | 1947-04-24 | 1951-10-23 | Raytheon Mfg Co | Welding of thermoplastic materials with application of highfrequency dielectric energy and pressure |
US2467783A (en) * | 1947-09-20 | 1949-04-19 | Westinghouse Electric Corp | Dielectric heating means and control therefor |
US2467782A (en) * | 1947-09-20 | 1949-04-19 | Westinghouse Electric Corp | Dielectric heating means with automatic compensation for capacitance variation |
US2629812A (en) * | 1947-09-20 | 1953-02-24 | Westinghouse Electric Corp | Adjustable dielectric heating equipment |
US2546784A (en) * | 1948-02-12 | 1951-03-27 | Remington Rand Inc | Punch tape sensing condenser |
US2678994A (en) * | 1951-03-30 | 1954-05-18 | Armstrong Cork Co | High-frequency power control device |
US2723334A (en) * | 1951-04-14 | 1955-11-08 | Westinghouse Electric Corp | Dielectric heating |
US2721924A (en) * | 1952-04-17 | 1955-10-25 | Armstrong Cork Co | Dielectric heating device for the edge gluing |
US2765388A (en) * | 1953-03-30 | 1956-10-02 | Nat Cylinder Gas Co | Apparatus for controlling oscillator grid drive |
US2747067A (en) * | 1953-08-13 | 1956-05-22 | Nat Cylinder Gas Co | Voltage determining arrangement for dielectric heaters |
US2824940A (en) * | 1953-10-14 | 1958-02-25 | North American Philps Company | High-frequency heating device |
US2783345A (en) * | 1954-03-26 | 1957-02-26 | Nat Cylinder Gas Co | High-frequency heating applicators |
US3281566A (en) * | 1963-11-27 | 1966-10-25 | Weldotron Corp | Electronic wood gluing and plastic bonding apparatus |
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