US3713169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode configuration for electrolytic printing
Assignee: AT&T Inc
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Filing: 1969-09-29
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Granted: 1973-01-23
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Expires: 1989-09-29
Abstract
Abstract To make possible high-speed electrolytic printing, an electrode arrangement is necessary which will permit the recording sheet to be transported past the writing electrodes at rates greater than 1-inch per second. The disclosed arrangement places a linear array of electrode pairs across the width of the recording sheet with the anode and the cathode electrodes of each pair on the same side of the recording sheet and without a backing plate or roller on the other side. In addition to easing the otherwise stringent mechanical tolerances on the system and the drag on the recording sheet, this arrangement eliminates printing through and could permit printing on both sides. Exemplary electrode geometries are presented, including suggested methods for the renewal of the anode.
Inventors
- 👤 D Turner
- 👤 M County
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/385; B41J2/39; B41J2/395; G; G01; G01D; G01D15/00; G01D15/06; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
206 words
Apparatus for electrolytic printing comprising means for the electrolytic deposition of particles of a metal on a porous recording sheet permeated with an electrolyte by the introduction of metal ions into the recording sheet where they are subsequently precipitated as metal particles in the deposition region, which means comprises transportation means necessary to provide relative motion between the said recording sheet and an array comprising a first portion and a second portion each portion containing at least one electrode pair CHARACTERIZED IN THAT each said electrode pair consists of an anode, incorporating the said metal, and a cathode located adjacent to the said anode on the same side of the said recording sheet as the said anode and IN THAT the said first portion is the only solid body in contact with either side of the said recording sheet in the said deposition region whereby printing is accomplished on one side of the said recording sheet and the said second portion is displaced from the said fiRst portion in the direction of transportation of the said recording sheet and disposed on the opposite side of the said recording sheet from the said first portion whereby printing is accomplished on the opposite side of the recording sheet.
Claim 2
Dependent Claim
206 words
Apparatus for electrolytic printing comprising means for the electrolytic deposition of particles of a metal on a porous recording sheet permeated with an electrolyte by the introduction of metal ions into the recording sheet where they are subsequently precipitated as metal particles in the deposition region, which means comprises transportation means necessary to provide relative motion between the said recording sheet and an array comprising a first portion and a second portion each portion containing at least one electrode pair CHARACTERIZED IN THAT each said electrode pair consists of an anode, incorporating the said metal, and a cathode located adjacent to the said anode on the same side of the said recording sheet as the said anode and IN THAT the said first portion is the only solid body in contact with either side of the said recording sheet in the said deposition region whereby printing is accomplished on one side of the said recording sheet and the said second portion is displaced from the said fiRst portion in the direction of transportation of the said recording sheet and disposed on the opposite side of the said recording sheet from the said first portion whereby printing is accomplished on the opposite side of the recording sheet.
Claim 3
Dependent Claim
189 words
Apparatus for electrolytic printing comprising means for the electrolytic deposition of particles of a metal on a porous recording sheet permeated with an electrolyte by the electrolytic introduction of metal ions into the recording sheet where they are subsequently precipitated, as metal particles in the deposition region which means comprises transportation means necessary to provide relative motion between the said recording sheet and an electrode pair CHARACTERIZED IN THAT the said electrode pair consists of an anode, incorporating the said metal, and a cathode located adjacent to the said anode on the same side of the said recording sheet as the said anode, and the said anode and the said cathode are the only solid bodies in contact with either side of the said recording sheet in the said deposition region and comprising means for renewing the anodes of the array comprising wires of the material composing the said anodes fixed to a curved surface adjacent to an aperture in an insulating mask and rotation means for imparting a rotation to the curved surface in order to bring a fresh portion of the said wire to the said aperture.
Claim 4
Dependent Claim
189 words
Apparatus for electrolytic printing comprising means for the electrolytic deposition of particles of a metal on a porous recording sheet permeated with an electrolyte by the electrolytic introduction of metal ions into the recording sheet where they are subsequently precipitated, as metal particles in the deposition region which means comprises transportation means necessary to provide relative motion between the said recording sheet and an electrode pair CHARACTERIZED IN THAT the said electrode pair consists of an anode, incorporating the said metal, and a cathode located adjacent to the said anode on the same side of the said recording sheet as the said anode, and the said anode and the said cathode are the only solid bodies in contact with either side of the said recording sheet in the said deposition region and comprising means for renewing the anodes of the array comprising wires of the material composing the said anodes fixed to a curved surface adjacent to an aperture in an insulating mask and rotation means for imparting a rotation to the curved surface in order to bring a fresh portion of the said wire to the said aperture.
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |