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US3765099A
Expired / Lapsed
US
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Method and apparatus for drying wet surfaces
Assignee: Agfa Gevaert AG
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Filing: 1973-02-06
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Granted: 1973-10-16
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Expires: 1993-02-06
Abstract
Abstract Method and apparatus for drying wet surfaces, especially the wet surface of a photoelectric or electric copy carrier, in which elongated electrode means, having points directed toward, but out of contact with the wet surface of a carrier, and the carrier are moved relative to each other in a direction transverse to the elongation of the electrode means, while a potential difference of about 4-8 kv is applied to the carrier and the electrode means to thus produce gas ions emanating at high speed from the points of the electrode and a resulting gas-ion and air stream directed to the carrier surface which will push the liquid film off the surface during relative movement of the electrode means and the carrier.
Inventors
- 👤 J Kohlmannsperger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:59
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/10; G03G15/11
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
130 words
A method of drying surfaces, especially the wet surface of an electrographic or dielectric copy carrier, comprising the steps of moving elongated electrode means, having a plurality of closely adjacent pointed elements, the points of which are closely adjacent but out of contact with the wet surface, and the wet surface relative to each other in a direction transverse to the elongation of said electrode means; and applying during such movement a potential difference to said electrode means and said surface to thus produce gas ions emanating at high speed from said electrode means, resulting in a gas-ion and air stream direct to said surface so as to push a liquid film on said wet surface off the latter during the relative movement of said electrode means and said surface.
Claim 2
Independent Claim
130 words
A method of drying surfaces, especially the wet surface of an electrographic or dielectric copy carrier, comprising the steps of moving elongated electrode means, having a plurality of closely adjacent pointed elements, the points of which are closely adjacent but out of contact with the wet surface, and the wet surface relative to each other in a direction transverse to the elongation of said electrode means; and applying during such movement a potential difference to said electrode means and said surface to thus produce gas ions emanating at high speed from said electrode means, resulting in a gas-ion and air stream direct to said surface so as to push a liquid film on said wet surface off the latter during the relative movement of said electrode means and said surface.
Claim 3
Dependent Claim
18 words
A method as defined in claim 1, wherein said potential difference is in the order of 4-8 kV.
Claim 4
Dependent Claim
114 words
Apparatus for drying wet surfaces of elements, especially surfaces of an electrophotographic or dielectric copy carrier, comprising, in combination, support means having a surface for supporting an element with the wet surface thereof exposed; elongated electrode means having a plurality of closely adjacent pointed elements, the points of which are closely adjacent but out of contact with the exposed wet surface of an element on said support means, said support means and said electrode means being arranged for movement with respect to each other in a direction transverse to the elongation of said electrode means; and means for applying a potential difference to said electrode means and said support means and the element thereon.
Claim 5
Dependent Claim
114 words
Apparatus for drying wet surfaces of elements, especially surfaces of an electrophotographic or dielectric copy carrier, comprising, in combination, support means having a surface for supporting an element with the wet surface thereof exposed; elongated electrode means having a plurality of closely adjacent pointed elements, the points of which are closely adjacent but out of contact with the exposed wet surface of an element on said support means, said support means and said electrode means being arranged for movement with respect to each other in a direction transverse to the elongation of said electrode means; and means for applying a potential difference to said electrode means and said support means and the element thereon.
Claim 6
Dependent Claim
47 words
An apparatus as defined in claim 3, wherein said support means iS stationarily arranged, and including carriage means mounting said electrode means for movement in said transverse direction, and guide means on said support means for guiding said carriage during its movement relative to said support means.
Claim 7
Dependent Claim
18 words
Apparatus as defined in claim 3, wherein said pointed elements are constituted by teeth of a comb-shaped electrode.
Claim 8
Dependent Claim
33 words
Apparatus as defined in claim 4, wherein said pointed elements are constituted by teeth of a comb-shaped electrode, and wherein two such comb-shaped electrodes are arranged parallel to each other on said carriage.
Claim 9
Dependent Claim
87 words
Apparatus as defined in claim 3, wherein said elongated electrode means is V-shaped and located in a plane substantially parallel to said surface of said support means, with the apex of said V-shaped electrode means located between side edges of an element on said support means, said apex being arranged in such a manner that during relative movement of said electrode means and said support means with said element thereon, a wet film on said exposed surface will be displaced toward said side edges of said element.
Claim 10
Dependent Claim
60 words
Apparatus as defined in claim 7, wherein said support means has opposite ends and is arranged stationarily, and including carriage means mounting said V-shaped electrode means movable during a working stroke from one to the opposite end of said support means with the apex of said V-shaped electrode means leading during the movement of said carriage along said working stroke.
Claim 11
Dependent Claim
64 words
Apparatus as defined in claim 3, wherein said electrode means comprise an elongated cylinder and a plurality of pointed elements projecting closely arranged to each other in substantially radial direction from the peripheral surface of said cylinder, and including means for rotating said cylinder about its axis during relative movement of said electrode means and said element in a direction transverse to said axis.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |