US3742279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmented electrode display panel having closed structure
Assignee: Unisys Corp
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Filing: 1971-02-10
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Granted: 1973-06-26
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Expires: 1991-02-10
Abstract
Abstract Multiple position display panels for displaying one or more characters side-by-side in one or more rows and including a plurality of parallel elongated conductors bearing a plurality of flat cathode segments along their length and an anode associated with each group of the display segments. Portions of the cathodeconnecting conductors are offset and are disposed within grooves or depressions in an insulating sheet or are embedded in an insulating layer where the cathode elements cross them. A slotted insulating sheet is disposed between the cathode elements and the anodes, the slots being aligned with the cathodes, and the assembly is sealed in a gaseous atmosphere at a suitable pressure.
Inventors
- 👤 G Kupsky
- 👤 R Kollmyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:46
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/491
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
117 words
A segmented electrode display device comprising a gas-filled envelope including an insulating base plate having top and bottom surfaces, a plurality of elongated conductors supported on said base plate and individually bearing a plurality of substantially flat cathode electrode segments spaced apart and offset upwardly from the conductors, the segments being arrayed in groups along said conductors, with a segment of different ones of said conductors included in each group and each group comprising a display position in the device, the electrode segments being spaced apart and insulated from the other conductors and their segments, an anode electrode positioned in operative relation with each said group of electrode segments, and a light-transmitting window sealed in said envelope.
Claim 2
Dependent Claim
117 words
A segmented electrode display device comprising a gas-filled envelope including an insulating base plate having top and bottom surfaces, a plurality of elongated conductors supported on said base plate and individually bearing a plurality of substantially flat cathode electrode segments spaced apart and offset upwardly from the conductors, the segments being arrayed in groups along said conductors, with a segment of different ones of said conductors included in each group and each group comprising a display position in the device, the electrode segments being spaced apart and insulated from the other conductors and their segments, an anode electrode positioned in operative relation with each said group of electrode segments, and a light-transmitting window sealed in said envelope.
Claim 3
Dependent Claim
27 words
The segmented electrode display device of claim 1 wherein the elongated conductors are substantially flat strips of conductive material carrying the display cathode segments along their lengths.
Claim 4
Dependent Claim
32 words
The segmented electrode display device of claim 1 wherein the insulating base plate contains grooves or depressions in its top surface to receive the cathode conductors between the associated offset cathode segments.
Claim 5
Dependent Claim
41 words
The segmented electrode display device of claim 1 wherein some of the cathode segments cross an adjacent conductor at an angle and insulating material is disposed between the offset portions of the cathode conductors and the cathode segments which cross them.
Claim 6
Dependent Claim
46 words
The segmented electrode display device of claim 1 further comprising insulating means disposed between the groups of cathode segments and the associated anode electrodes and having apertures smaller in area than the corresponding cathode segments for exposing the cathode segments and defining the glow from them.
Claim 7
Dependent Claim
38 words
The segmented electrode display device of claim 1 further comprising insulating means situated over the elongated conductors and having apertures which are sufficiently large to receive the corresponding cathode segments and thereby confine the glow discharges about them.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |