Patent US3634719A successfully refreshed from Google Patents.
US3634719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas discharge display/memory panel having lead oxide coated dielectric plates with decreased aging time
Assignee: OI Glass Inc
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Filing: 1970-09-08
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Granted: 1972-01-11
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Expires: 1990-09-08
Abstract
Abstract There is disclosed a multiple gaseous discharge display/memory panel having an electrical memory and capable of producing a visual display, the panel being characterized by an ionizable gaseous medium in a gas chamber formed by a pair of opposed dielectric material charge storage members which are respectively backed by a series of parallellike conductor (electrode) members, the conductor members behind each dielectric material member being transversely oriented with respect to the conductor members behind the opposing dielectric material member so as to define a plurality of discrete discharge volumes constituting a discharge unit, the surface of the dielectric material having a lead oxide applied thereto in an amount sufficient to substantially decrease the preliminary aging time of the panel and to provide stable panel-operating voltages which do not significantly change with panel-operating time.
Inventors
- 👤 Roger E Ernsthausen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:08
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
23 words
The invention of claim 1 wherein each dielectric surface is coated with a lead oxide thickness of at least about 200 angstrom units.
Claim 2
Dependent Claim
22 words
The invention of claim 2 wherein the lead oxide thickness ranges from about 200 angstrom units up to about 10,000 angstrom units.
Claim 3
Dependent Claim
101 words
In a gaseous discharge panel comprising an ionizable gaseous medium in a gas chamber formed by a pair of opposed dielectric material charge storage surfaces backed by electrode members, the electrode members behind each dielectric material surface being transversely oriented with respect to the electrode material members behind the opposing dielectric material surface so as to define a plurality of discharge units, the improvement wherein at least one lead oxide is applied to each opposed dielectric material surface in an amount sufficient to substantially decrease required panel aging and to provide stable panel-operating voltages for a given period of panel-operating time.
Claim 4
Dependent Claim
49 words
As an article of manufacture, a dielectric material body for a gaseous discharge panel, said dielectric body containing a surface deposit of at least one lead oxide in an amount sufficient to provide gaseous discharge panel-operating voltages which do not substantially change over a given period of panel-operating time.
Claim 5
Dependent Claim
23 words
The invention of claim 5 wherein the dielectric body is coated with a lead oxide thickness of at least about 200 angstrom units.
Claim 6
Dependent Claim
22 words
The invention of claim 6 wherein the lead oxide thickness ranges from about 200 angstrom units up to about 10,000 angstrom units.
Claim 7
Dependent Claim
147 words
In the operation of a gaseous discharge panel characterized by an ionizable gaseous medium in a gas chamber formed by a pair of dielectric material members having opposed charge storage surfaces, which dielectric material members are respectively backed by a series of parallellike electrode members, the electrode members behind each dielectric material member being transversely oriented with respect to the electrode members behind the opposing dielectric material member so as to define a plurality of discrete discharge volumes constituting a discharge unit, and wherein the gas is selectively ionized within each discharge unit by operating voltages applied to the transversely oriented electrode members, the improvement which comprises decreasing the required panel-aging time and stabilizing the panel-operating voltages over a given period of panel-operating time so as to increase the effective panel-operating life by coating each opposed dielectric material charge storage surface with a deposit of lead oxide.
Claim 8
Dependent Claim
22 words
The invention of claim 8 wherein the dielectric surface is coated with an oxide thickness of at least about 200 angstrom units.
Claim 9
Dependent Claim
21 words
The invention of claim 9 wherein the oxide thickness ranges from about 200 angstrom units up to about 10,000 angstrom units.
References Cited (Backward Citations)
US3257581A
Cited
US3499167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |