Patent US3917972A successfully refreshed from Google Patents.
US3917972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-position indicator display tube
Assignee: Sony Corp
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Filing: 1973-07-23
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Granted: 1975-11-04
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Expires: 1993-07-23
Abstract
Abstract An indicator display tube in which indicator electrode units, each consisting of anode and cathode segments, lie in the same plane and in which all of the cathode segments are simultaneously energized and the anode segments are energized on a time sequential basis in such a manner that only the indicator electrode unit having its anode segments energized will glow at a particular time. The cathode segments of each indicator unit are connected in parallel. The indicator display tube has barrier segments for preventing accidental discharge of adjacent indicator electrode units which would produce erroneous message displays. At least the cathode but preferably all of the segments are formed of a silver paste coated with nickel. The base material on which the silver paste is coated is glass. This arrangement prevents sputtering.
Inventors
- 👤 Yuzuru Yanagisawa
- 👤 Akio Ohgoshi
- 👤 Akira Yamanaka
- 👤 Shoichi Muramoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:14
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/491
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
265 words
An indicator display tube comprising: a plate of an insulating material; a plurality of interconnecting leads formed on said plate; a first insulating layer formed on said plate over said plurality of interconnecting leads with windows aligned with said interconnecting leads; a plurality of indicator units formed on said first insulating layer and each consisting of a number of strip conductive elements and a plurality of selecting leads on said first insulating layer with said indicator units and said selecting leads connected to corresponding ones of said interconnecting leads through said windows respectively; certain of said strip conductive elements comprising cathode gaseous discharge sustaining display electrodes and others of said strip conductive elements comprising anode gaseous discharge sustaining and counter electrodes; barrier means of electrically conductive material formed on said first insulating layer and formed with openings in which said associated strip conductive elements of said indicator units are mounted; a second insulating layer formed on said selecting leads; a transparent cover attached to said plate and forming an envelope for enclosing said indicator units and barrier means; an ionizable gas sealed in said envelope, said first insulating layer being formed of glass and said strip conductive elements and said selecting leads being formed of silver; said first insulating layer of glass formed partially over the edges of said strip conductive elements to leave a portion thereof uncovered, a first layer of nickel deposited over said uncovered portions of said conductive elements, and a second layer of nickel formed over said first layer of nickel and extending partially over said first insulating layer of glass.
Claim 2
Dependent Claim
265 words
An indicator display tube comprising: a plate of an insulating material; a plurality of interconnecting leads formed on said plate; a first insulating layer formed on said plate over said plurality of interconnecting leads with windows aligned with said interconnecting leads; a plurality of indicator units formed on said first insulating layer and each consisting of a number of strip conductive elements and a plurality of selecting leads on said first insulating layer with said indicator units and said selecting leads connected to corresponding ones of said interconnecting leads through said windows respectively; certain of said strip conductive elements comprising cathode gaseous discharge sustaining display electrodes and others of said strip conductive elements comprising anode gaseous discharge sustaining and counter electrodes; barrier means of electrically conductive material formed on said first insulating layer and formed with openings in which said associated strip conductive elements of said indicator units are mounted; a second insulating layer formed on said selecting leads; a transparent cover attached to said plate and forming an envelope for enclosing said indicator units and barrier means; an ionizable gas sealed in said envelope, said first insulating layer being formed of glass and said strip conductive elements and said selecting leads being formed of silver; said first insulating layer of glass formed partially over the edges of said strip conductive elements to leave a portion thereof uncovered, a first layer of nickel deposited over said uncovered portions of said conductive elements, and a second layer of nickel formed over said first layer of nickel and extending partially over said first insulating layer of glass.
Claim 3
Dependent Claim
279 words
An indicator display tube comprising: a plate of an insulating material; a plurality of interconnecting leads formed on said plate; a first insulating layer formed on said plate over said plurality of interconnecting leads with windows aligned with said interconnecting leads; a plurality of indicator units formed on said first insulating layer and each consisting of a number of strip conductive elements and a plurality of selecting leads on said first insulating layer with said indicator units and said selecting leads connected to corresponding ones of said interconnecting leads through said windows respectively; certain of said strip conductive elements comprising cathode gaseous discharge sustaining and display electrodes and others of said strip conductive elements comprising anode gaseous discharge sustaining and counter electrodes, barrier means of electrically conductive material formed on said first insulating layer and formed with openings in which said associated strip conductive elements of said indicator units are mounted; a second insulating layer formed on said selecting leads; a transparent cover attached to said plate and forming an envelope for enclosing said indicator units and barrier means; an ionizable gas sealed in said envelope, said first insulating layer being formed of glass and said strip conductive elements and said selecting leads being formed of silver; said first insulating layer of glass formed partially over the edges of said strip conductive elements to leave a portion thereof uncovered; a second layer of silver deposited over said uncovereD portions of said strip conductive elements and partially overlying said first insulating layer; a layer of copper overlying said second layer of silver, and a layer of nickel overlying said second layer of silver and extending to said second insulating layer.
Claim 4
Dependent Claim
279 words
An indicator display tube comprising: a plate of an insulating material; a plurality of interconnecting leads formed on said plate; a first insulating layer formed on said plate over said plurality of interconnecting leads with windows aligned with said interconnecting leads; a plurality of indicator units formed on said first insulating layer and each consisting of a number of strip conductive elements and a plurality of selecting leads on said first insulating layer with said indicator units and said selecting leads connected to corresponding ones of said interconnecting leads through said windows respectively; certain of said strip conductive elements comprising cathode gaseous discharge sustaining and display electrodes and others of said strip conductive elements comprising anode gaseous discharge sustaining and counter electrodes, barrier means of electrically conductive material formed on said first insulating layer and formed with openings in which said associated strip conductive elements of said indicator units are mounted; a second insulating layer formed on said selecting leads; a transparent cover attached to said plate and forming an envelope for enclosing said indicator units and barrier means; an ionizable gas sealed in said envelope, said first insulating layer being formed of glass and said strip conductive elements and said selecting leads being formed of silver; said first insulating layer of glass formed partially over the edges of said strip conductive elements to leave a portion thereof uncovered; a second layer of silver deposited over said uncovereD portions of said strip conductive elements and partially overlying said first insulating layer; a layer of copper overlying said second layer of silver, and a layer of nickel overlying said second layer of silver and extending to said second insulating layer.
Claim 5
Dependent Claim
271 words
An indicator display tube comprising: a plate of an insulating material; a plurality of interconnecting leads formed on said plate; a first insulating layer formed on said plate over said plurality of interconnecting leads with windows aligned with said interconnecting leads; a plurality of indicator units formed on said first insulating layer and each consisting of a number of strip conductive elements and a plurality of selecting leads on said first insulating layer with said indicator units and said selecting leads connected to corresponding ones of said interconnecting leads through said windows respectively; certain of said strip conductive elements comprising cathode gaseous discharge sustaining and display electrodes and others of said strip conductive elements comprising anode gaseous discharge sustaining and counter electrodes; barrier means of electrically conductive material formed on said first insulating layer and formed with openings in which said associated strip conductive elements of said indicator units are mounted; a second insulating layer formed on said selecting leads; a transparent cover attached to said plate and forming an envelope for enclosing said indicator units and barrier means; an ionizable gas sealed in said envelope, said first insulating layer being formed of glass and said strip conductive elements and said selecting leads being formed of silver; said first insulating layer of glass formed partially over the edges of said strip conductive elements to leave a portion thereof uncovered, a layer of platinum overlying said uncovered portions of said conductive elements and extending partially over said first insulating layer of glass, and a coating of nickel overlying said layer of platinum and extending downwardly to said first insulating layer of glass.
Claim 6
Dependent Claim
271 words
An indicator display tube comprising: a plate of an insulating material; a plurality of interconnecting leads formed on said plate; a first insulating layer formed on said plate over said plurality of interconnecting leads with windows aligned with said interconnecting leads; a plurality of indicator units formed on said first insulating layer and each consisting of a number of strip conductive elements and a plurality of selecting leads on said first insulating layer with said indicator units and said selecting leads connected to corresponding ones of said interconnecting leads through said windows respectively; certain of said strip conductive elements comprising cathode gaseous discharge sustaining and display electrodes and others of said strip conductive elements comprising anode gaseous discharge sustaining and counter electrodes; barrier means of electrically conductive material formed on said first insulating layer and formed with openings in which said associated strip conductive elements of said indicator units are mounted; a second insulating layer formed on said selecting leads; a transparent cover attached to said plate and forming an envelope for enclosing said indicator units and barrier means; an ionizable gas sealed in said envelope, said first insulating layer being formed of glass and said strip conductive elements and said selecting leads being formed of silver; said first insulating layer of glass formed partially over the edges of said strip conductive elements to leave a portion thereof uncovered, a layer of platinum overlying said uncovered portions of said conductive elements and extending partially over said first insulating layer of glass, and a coating of nickel overlying said layer of platinum and extending downwardly to said first insulating layer of glass.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |