US3979836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the high-frequency treatment of moist material
Assignee: Siemens AG
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Filing: 1975-04-17
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Granted: 1976-09-14
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Expires: 1995-04-17
Abstract
Abstract An apparatus and method are disclosed for preventing condensation of the steam produced during the high-frequency treatment of moist material. In particular, the aforesaid is brought about by heating and cooling at least the current leads and/or the electrodes of the apparatus in such a manner that prior to and during the r-f treatment the current leads and/or the electrodes have at least approximately the same surface temperature.
Inventors
- 👤 Hans-Christian Grassmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:52
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/32; F26B3/34; F26B3/343; D; D21; D21F; D21F5/00; D21F5/16; D21F5/165; F26B13/00; F26B13/10; H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
103 words
A method for use in the high-frequency treatment of a moist material in which the material is influenced by electrodes which are connected to current leads through which a heat carrier flows comprising the steps of: heating the current leads prior to the high-frequency treatment; cooling the current leads during the high-frequency treatment; controlling the current lead temperature as a function of the temperature of the ambient atmosphere; and said heating and cooling being carried out in such a manner that prior to said treatment and during said treatment the current leads are caused to have at least approximately the same surface temperature.
Claim 2
Independent Claim
103 words
A method for use in the high-frequency treatment of a moist material in which the material is influenced by electrodes which are connected to current leads through which a heat carrier flows comprising the steps of: heating the current leads prior to the high-frequency treatment; cooling the current leads during the high-frequency treatment; controlling the current lead temperature as a function of the temperature of the ambient atmosphere; and said heating and cooling being carried out in such a manner that prior to said treatment and during said treatment the current leads are caused to have at least approximately the same surface temperature.
Claim 3
Dependent Claim
28 words
A method according to claim 1 which further includes the step of controlling the current lead temperature as a function of the moisture content of the ambient atmosphere.
Claim 4
Dependent Claim
18 words
A method in accordance with claim 1 further including the step of maintaining the heat carrier under overpressure.
Claim 5
Independent Claim
101 words
A method for use in the high-frequency treatment of a moist material in which the material is influenced by electrodes which are connected to current leads through which a heat carrier flows comprising the steps of: heating the current leads prior to the high-frequency treatment; cooling the current leads during the high-frequency treatment; controlling the electrode temperature as a function of the temperature of ambient atmosphere; and said heating and cooling being carried out in such a manner that prior to said treatment and during said treatment the current leads are caused to have at least approximately the same surface temperature.
Claim 6
Independent Claim
101 words
A method for use in the high-frequency treatment of a moist material in which the material is influenced by electrodes which are connected to current leads through which a heat carrier flows comprising the steps of: heating the current leads prior to the high-frequency treatment; cooling the current leads during the high-frequency treatment; controlling the electrode temperature as a function of the temperature of ambient atmosphere; and said heating and cooling being carried out in such a manner that prior to said treatment and during said treatment the current leads are caused to have at least approximately the same surface temperature.
Claim 7
Dependent Claim
15 words
A method according to claim 4 in which said heat carrier flows through said electrodes.
Claim 8
Dependent Claim
27 words
A method according to claim 4 which further includes the step of controlling the electrode temperature as a function of the moisture content of the ambient atmosphere.
Claim 9
Dependent Claim
17 words
A method according to claim 4 further including the step of maintaining the heat carrier under overpressure.
Claim 10
Independent Claim
128 words
A method for use in the high-frequency treatment of a moist material in which the material is influenced by electrodes which are connected to current leads through which a heat carrier flows comprising the steps of: heating the current leads prior to the high-frequency treatment; cooling the current leads during the high-frequency treatment; controlling the electrode temperature as a function of the temperature of ambient atmosphere; and said heating and cooling being carried out in such a manner that prior to said treatment and during said treatment said current leads are caused to have at least approximately the same surface temperature and in such a manner that prior to said treatment and during said treatment said electrodes are caused to have at least approximately the same surface temperature.
Claim 11
Independent Claim
128 words
A method for use in the high-frequency treatment of a moist material in which the material is influenced by electrodes which are connected to current leads through which a heat carrier flows comprising the steps of: heating the current leads prior to the high-frequency treatment; cooling the current leads during the high-frequency treatment; controlling the electrode temperature as a function of the temperature of ambient atmosphere; and said heating and cooling being carried out in such a manner that prior to said treatment and during said treatment said current leads are caused to have at least approximately the same surface temperature and in such a manner that prior to said treatment and during said treatment said electrodes are caused to have at least approximately the same surface temperature.
Claim 12
Dependent Claim
109 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry a heat carrier therethrough; a heat carrier passing through said current leads; means for controlling the temperature of said heat carrier such that said current leads have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a mixer and a controller for actuating said mixer; and means for controlling the temperature of said chamber such that it is higher than the temperature of said heat carrier.
Claim 13
Dependent Claim
109 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry a heat carrier therethrough; a heat carrier passing through said current leads; means for controlling the temperature of said heat carrier such that said current leads have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a mixer and a controller for actuating said mixer; and means for controlling the temperature of said chamber such that it is higher than the temperature of said heat carrier.
Claim 14
Dependent Claim
14 words
Apparatus in accordance with claim 9 in which said mixer is a three-way valve.
Claim 15
Dependent Claim
36 words
Apparatus in accordance with claim 9 which further includes: a pipeline for conducting said heat carrier to and from said current leads; and at least one circulating pump for pumping said heat carrier through said pipeline.
Claim 16
Dependent Claim
110 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry a heat carrier therethrough; a heat carrier passing through said current leads; means for controlling the flow rate of said heat carrier such that said current leads have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a valve and a controller for actuating said valve; and means for controlling the temperature of said chamber such that it is higher than the temperature of said heat carrier.
Claim 17
Dependent Claim
110 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry a heat carrier therethrough; a heat carrier passing through said current leads; means for controlling the flow rate of said heat carrier such that said current leads have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a valve and a controller for actuating said valve; and means for controlling the temperature of said chamber such that it is higher than the temperature of said heat carrier.
Claim 18
Dependent Claim
120 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material, said electrodes being adapted to carry a heat carrier therethrough; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry said heat carrier therethrough; a heat carrier passing through said electrodes and current leads; means for controlling the temperature of said heat carrier such that said electrodes have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a mixer and a controller for actuating said mixer; and means for controlling the temperature of said chamber such that it is higher than the temperature of said heat carrier.
Claim 19
Dependent Claim
120 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material, said electrodes being adapted to carry a heat carrier therethrough; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry said heat carrier therethrough; a heat carrier passing through said electrodes and current leads; means for controlling the temperature of said heat carrier such that said electrodes have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a mixer and a controller for actuating said mixer; and means for controlling the temperature of said chamber such that it is higher than the temperature of said heat carrier.
Claim 20
Dependent Claim
121 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material, said electrodes being adapted to carry a heat carrier therethrough; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry said heat carrier therethrough; a heat carrier passing through said electrodes and current leads; means for controlling the flow rate of said heat carrier such that said electrodes have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a valve and a controller for actuating said value; and means for controlling the temperature of said chamber such that it is higher than the temperature of said hear carrier.
Claim 21
Dependent Claim
121 words
Apparatus for use in the high-frequency treatment of a moist material comprising: electrodes for influencing said material, said electrodes being adapted to carry a heat carrier therethrough; a chamber for housing said electrodes; current leads connected to said electrodes and adapted to carry said heat carrier therethrough; a heat carrier passing through said electrodes and current leads; means for controlling the flow rate of said heat carrier such that said electrodes have at least approximately the same surface temperature prior to and during said high-frequency treatment, said means for controlling including a valve and a controller for actuating said value; and means for controlling the temperature of said chamber such that it is higher than the temperature of said hear carrier.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |