US3331983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct-view storage tube and method of erasure
Assignee: Raytheon Co
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Filing: 1964-04-27
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Granted: 1967-07-18
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Hesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:55
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/395; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A DIRECT-VIEWING HALF-TONE STORAGE DISPLAY TUBE COMPRISING, IN COMBINATION: (A) A FIRST ELECTRON GUN FOR PROVIDING A SCANNING ELECTRON BEAM OF ELEMENTAL CROSS-SECTIONAL AREA; (B) A SECOND ELECTRON GUN FOR PROVIDING A FLOOD BEAM OF ELECTRONS; (C) A VIEWING TARGET POSITIONED WITHIN THE TARGET AREA OF SAID ELECTRON GUNS ADAPTED TO LUMINESCE IN RESPONSE TO THE IMPINGEMENT OF ELECTRONS THEREON; (D) A STORAGE TARGET DISPOSED BETWEEN SAID ELECTRON GUNS AND SAID VIEWING TARGET AND INCLUDING: (1) AN ELECTRON PERMEABLE ELECTRODE MEMBER; (2) A STORAGE DIELECTRIC LAYER ON THE SURFACE OF SAID ELECTRODE MEMBER FACING SAID ELECTRON GUNS AND EXHIBITING FIELD INDUCED AND CONTROLLED CONDUCTIVITY; (E) MEANS INCLUDING SAID STORAGE TARGET FOR FORMING A PATTERN OF ELECTRICAL CHARGES ON THE SURFACE OF SAID DIELECTRIC LAYER IN RESPONSE TO THE IMPINGEMENT THEREON OF SAID SCANNING ELECTRON BEAM; (F) MEANS FOR SELECTIVELY CONTROLLING THE LEAKAGE OF SAID ELECTRICAL CHARGES TO SAID ELECTRODE MEMBER COMPRISING MEANS FOR ESTABLISHING A PREDETERMINED ELECTRICAL FIELD ACROSS SAID DIELECTRIC LAYER.
Claim 2
Dependent Claim
162 words
A DIRECT-VIEWING HALF-TONE STORAGE DISPLAY TUBE COMPRISING, IN COMBINATION: (A) A FIRST ELECTRON GUN FOR PROVIDING A SCANNING ELECTRON BEAM OF ELEMENTAL CROSS-SECTIONAL AREA; (B) A SECOND ELECTRON GUN FOR PROVIDING A FLOOD BEAM OF ELECTRONS; (C) A VIEWING TARGET POSITIONED WITHIN THE TARGET AREA OF SAID ELECTRON GUNS ADAPTED TO LUMINESCE IN RESPONSE TO THE IMPINGEMENT OF ELECTRONS THEREON; (D) A STORAGE TARGET DISPOSED BETWEEN SAID ELECTRON GUNS AND SAID VIEWING TARGET AND INCLUDING: (1) AN ELECTRON PERMEABLE ELECTRODE MEMBER; (2) A STORAGE DIELECTRIC LAYER ON THE SURFACE OF SAID ELECTRODE MEMBER FACING SAID ELECTRON GUNS AND EXHIBITING FIELD INDUCED AND CONTROLLED CONDUCTIVITY; (E) MEANS INCLUDING SAID STORAGE TARGET FOR FORMING A PATTERN OF ELECTRICAL CHARGES ON THE SURFACE OF SAID DIELECTRIC LAYER IN RESPONSE TO THE IMPINGEMENT THEREON OF SAID SCANNING ELECTRON BEAM; (F) MEANS FOR SELECTIVELY CONTROLLING THE LEAKAGE OF SAID ELECTRICAL CHARGES TO SAID ELECTRODE MEMBER COMPRISING MEANS FOR ESTABLISHING A PREDETERMINED ELECTRICAL FIELD ACROSS SAID DIELECTRIC LAYER.
References Cited (Backward Citations)
US3089055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |