Patent US3681558A successfully refreshed from Google Patents.
US3681558A
Expired / Lapsed
US
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Capacitive high-frequency heating apparatus
Assignee: Siemens AG
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Filing: 1971-06-02
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Granted: 1972-08-01
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Expires: 1991-06-02
Abstract
Abstract An apparatus for uniform capacitive heating of bands of dielectric material such as paper and the like has two electrode groups arranged in respective mutually parallel planes. Each of the electrode groups includes a plurality of rod-like electrodes equally spaced in a row and each of the electrodes of one of the groups lies opposite a corresponding one of the electrodes of the other group. A feed system is arranged in a third plane intermediate the two electrode groups and includes a plurality of individual rods, each of said rods being disposed between a corresponding pair of said opposite electrodes. A high-frequency supply is provided for supplying the feed systems and the rods are alternately connected with different poles of the supply. A contactor is slidably mounted between each of the rods and the corresponding pair of opposite electrodes.
Inventors
- 👤 Hans Christian Grassman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:24
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/60; D; D06; D06C; D06C7/00; D21; D21F; D21F5/00; D21F5/16; D21F5/165; D06C2700/00; D06C2700/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
136 words
Apparatus for uniform capacitive heating of bands of dielectric material such as paper and the like, comprising two electrode groups arranged in respective mutually parallel planes, each of said electrode groups including a plurality of rod-like electrodes spaced in a row equally, each of the electrodes of one of said groups lying opposite a corresponding one of the electrodes of the other group, a feed system arranged in a third plane intermediate said two electrode groups, said feed system including a plurality of individual rods, each of said rods being disposed between a corresponding pair of said opposite electrodes, high-frequency supply means for supplying said feed system, said rods being alternately connected with different poles of said supply means, and contact means slidably mounted between each of said rods and said corresponding pair of opposite electrodes.
Claim 2
Dependent Claim
136 words
Apparatus for uniform capacitive heating of bands of dielectric material such as paper and the like, comprising two electrode groups arranged in respective mutually parallel planes, each of said electrode groups including a plurality of rod-like electrodes spaced in a row equally, each of the electrodes of one of said groups lying opposite a corresponding one of the electrodes of the other group, a feed system arranged in a third plane intermediate said two electrode groups, said feed system including a plurality of individual rods, each of said rods being disposed between a corresponding pair of said opposite electrodes, high-frequency supply means for supplying said feed system, said rods being alternately connected with different poles of said supply means, and contact means slidably mounted between each of said rods and said corresponding pair of opposite electrodes.
Claim 3
Dependent Claim
104 words
Apparatus according to claim 1, each of said rods being connected at both its ends to a like pole of said high-frequency supply means, said electrodes having a length of one-fifth of the wavelength ( lambda ) of the operating frequency of said supply means, said control means comprising a plurality of sliding contacts, each two of said contacts being arranged with respect to a corresponding one of said rods for electrically connecting the latter and said corresponding pair of said opposite electrodes, said two contacts being positioned a distance of lambda /15 from said ends of said corresponding one of said rods respectively.
Claim 4
Dependent Claim
30 words
Apparatus according to claim 1, said electrode pairs being grouped into sets in the direction of said rows, said sets being supplied from said supply means separately from each other.
References Cited (Backward Citations)
US3119920A
Cited
US3469054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |