US3165665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct viewing storage tube arrangements producing "black and white" pictures
Assignee: Teledyne UK Ltd
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Filing: 1962-01-15
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Granted: 1965-01-12
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Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 Firmin Jervois Campbell
- 👤 Sinclair Ian Robertson
- 👤 Davies Norman John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:46
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A STORAGE TUBE CIRCUIT ARRANGEMENT INCLUDING A DIRECT VIEWING STORAGE TUBE COMPRISING AN ELECTRIC CHARGE STORAGE STRUCTURE HAVING A BACKING GRID OR MESH WITH AN INSULATOR ON ONE SIDE THEREOF, A WRITING GUN ADAPTED TO SCAN SAID STRUCTURE WITH A SIGNAL-MODULATED ELECTRON BEAM TO PRODUCE ON SAID INSULATOR STORED ELECTRIC CHARGES CONTROLLED BY SAID SIGNALS, A FLOOD GUN ADAPTED TO COVER THE WORKING AREA OF SAID STRUCTURE WITH A COLLIMATED SUBSTANTIALLY UNIFORM DENSITY FLOOD BEAM OF ELECTRONS, AND A FLUORESCENT VIEWING SCREEN POSITIONED TO RECEIVE ELECTRONS OF THE FLOOD BEAM WHICH PASS THROUGH SAID STRUCTURE, MEANS FOR MODULATING THE WRITING ELECTRON BEAM OF SAID TUBE BY MEANS OF INPUT SIGNALS, AND MEANS FOR APPLYING BETWEEN THE BACKING GRID OR MESH AND THE CATHODE OF SAID FLOOD GUN SUCCESSIVELY DIFFERENT RECURRENT POTENTIAL VALUES SO CHOSEN IN RELATION TO THE SECONDARY EMISSION RATIO-VOLTAGE CHARACTERISTIC CURVE OF SAID INSULATOR THAT, IN THE ABSENCE OF STORED
Claim 2
Dependent Claim
152 words
A STORAGE TUBE CIRCUIT ARRANGEMENT INCLUDING A DIRECT VIEWING STORAGE TUBE COMPRISING AN ELECTRIC CHARGE STORAGE STRUCTURE HAVING A BACKING GRID OR MESH WITH AN INSULATOR ON ONE SIDE THEREOF, A WRITING GUN ADAPTED TO SCAN SAID STRUCTURE WITH A SIGNAL-MODULATED ELECTRON BEAM TO PRODUCE ON SAID INSULATOR STORED ELECTRIC CHARGES CONTROLLED BY SAID SIGNALS, A FLOOD GUN ADAPTED TO COVER THE WORKING AREA OF SAID STRUCTURE WITH A COLLIMATED SUBSTANTIALLY UNIFORM DENSITY FLOOD BEAM OF ELECTRONS, AND A FLUORESCENT VIEWING SCREEN POSITIONED TO RECEIVE ELECTRONS OF THE FLOOD BEAM WHICH PASS THROUGH SAID STRUCTURE, MEANS FOR MODULATING THE WRITING ELECTRON BEAM OF SAID TUBE BY MEANS OF INPUT SIGNALS, AND MEANS FOR APPLYING BETWEEN THE BACKING GRID OR MESH AND THE CATHODE OF SAID FLOOD GUN SUCCESSIVELY DIFFERENT RECURRENT POTENTIAL VALUES SO CHOSEN IN RELATION TO THE SECONDARY EMISSION RATIO-VOLTAGE CHARACTERISTIC CURVE OF SAID INSULATOR THAT, IN THE ABSENCE OF STORED
References Cited (Backward Citations)
US2843799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-12 | 1968-07-13 | 1969-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-12 | 1972-07-13 | 1973-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-12 | 1976-07-13 | 1977-01-12 | $7700.00 | Window Closed / Lapsed |