Patent US859121A successfully refreshed from Google Patents.
Patent US3612938A successfully refreshed from Google Patents.
US3612938A
Expired / Lapsed
US
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Gas discharge tube having two systems of intersecting electrodes
Assignee: US Philips Corp
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Filing: 1969-05-13
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Granted: 1971-10-12
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Expires: 1989-05-13
Abstract
Abstract In a gas discharge tube having two intersecting systems of electrodes the anode wire is provided with a resistance layer. As a result of this more discharges can cooperate with one and the same anode. Therefore, it is possible to supply a pattern of discharges which nearly burn until an extinguishing signal is given. The memory is now built in the tube.
Inventors
- 👤 Thijs Johannes De Boer
- 👤 Johannes Hendricus Mar Johanns
- 👤 Hendrikus Johan Lodewijk Trap
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:19
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
An electric discharge device comprising an envelope, two systems of elongate electrodes situated in parallel-spaced planes within said envelope, the electrodes of one system intersecting those of the other system at right angles, an ionizable gaseous medium between the two systems of electrodes, the electrodes of one of said electrode systems constituting cathodes and the electrodes of the other of said systems constituting anodes for said device, the electrodes constituting anodes being wires each comprising a metal core covered with a layer of phosphorus vanadate glass having a thickness of from 5 to 100 Mu and a resistivity between 103 and 108 ohm cm.
Claim 2
Dependent Claim
104 words
An electric discharge device comprising an envelope, two systems of elongate electrodes situated in parallel-spaced planes within said envelope, the electrodes of one system intersecting those of the other system at right angles, an ionizable gaseous medium between the two systems of electrodes, the electrodes of one of said electrode systems constituting cathodes and the electrodes of the other of said systems constituting anodes for said device, the electrodes constituting anodes being wires each comprising a metal core covered with a layer of phosphorus vanadate glass having a thickness of from 5 to 100 Mu and a resistivity between 103 and 108 ohm cm.
References Cited (Backward Citations)
US3334269A
Cited
US3499167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |