Patent US3859494A successfully refreshed from Google Patents.
US3859494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for drying wet coatings applied to substrates of low electrical conductivity
Assignee: Individual
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Filing: 1974-04-17
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Granted: 1975-01-07
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Expires: 1994-04-17
Abstract
Abstract The invention relates to a drying device for drying wet coatings applied to substrates of low electrical conductivity comprising a series of parallel spaced-apart first electrodes of rod-like form between which is located a row of upstanding electrode spikes defining a second electrode. HT voltage is applied between the first and second electrodes and dries the coating on the substrate as it passes close to the electrode array.
Inventors
- 👤 Walter Spengler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:13
CPC Classifications
D; D06; D06C; D06C7/00; D06C2700/00; D06C2700/09
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
179 words
A device for drying wet coatings applied to substrates of low electric conductivity, comprising a. a plurality of first electrodes in the form of elongated rod-like electrical conductors disposed in parallel spaced relationship, b. an electrically insulating sheath surrounding each first electrode, c. a plurality of second electrodes in the form of pointed spikes extending substantially perpendicular to the first electrodes and arranged in at least one row with the or each row extending between each adjacent pair of first electrodes, such that the pointed ends of the spikes in each row are virtually equidistant from the adjacent pair of first electrodes and with the pointed end of the spikes situated virtually in the same plane as the pair of first electrodes, d. HT generating means for maintaining a voltage difference between the first and second electrodes, and e. retaining means which supports both the first as well as the second electrodes, said retaining means defining means defining a surface electrically insulated from the first electrodes which surface confronts the first electrodes and above which the second electrodes project.
Claim 2
Independent Claim
179 words
A device for drying wet coatings applied to substrates of low electric conductivity, comprising a. a plurality of first electrodes in the form of elongated rod-like electrical conductors disposed in parallel spaced relationship, b. an electrically insulating sheath surrounding each first electrode, c. a plurality of second electrodes in the form of pointed spikes extending substantially perpendicular to the first electrodes and arranged in at least one row with the or each row extending between each adjacent pair of first electrodes, such that the pointed ends of the spikes in each row are virtually equidistant from the adjacent pair of first electrodes and with the pointed end of the spikes situated virtually in the same plane as the pair of first electrodes, d. HT generating means for maintaining a voltage difference between the first and second electrodes, and e. retaining means which supports both the first as well as the second electrodes, said retaining means defining means defining a surface electrically insulated from the first electrodes which surface confronts the first electrodes and above which the second electrodes project.
Claim 3
Dependent Claim
32 words
A device according to claim 1, in which each of the first electrodes is surrounded by a tube of vitreous silica which envelops the first electrode at least throughout its effective length.
Claim 4
Dependent Claim
20 words
A device according to claim 1, in which the first electrodes are connected in series to the HT generating means.
Claim 5
Dependent Claim
23 words
A device according to claim 1, in which the plurality of first electrodes is formed from bent-back runs of a one-piece electric conductor.
Claim 6
Dependent Claim
24 words
A device according to claim 4, in which the said one-piece electric conductor is enveloped by a vitreous silica tube throughout its entire length.
Claim 7
Dependent Claim
38 words
A device according to claim 1, in which the second electrodes are arranged at virtually uniform intervals in the or each row, the or each of the rows of second electrodes being supported by an electrically conductive bar.
Claim 8
Dependent Claim
22 words
A device according to claim 1, in which the retaining means comprises a base plate and end blocks of electrically insulating material.
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) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |