US3086138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television and like camera tubes
Assignee: Teledyne UK Ltd
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Filing: 1960-01-18
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Granted: 1963-04-16
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Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Hendry Eric Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28; H01J31/34; H01J31/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A SYSTEM INCLUDING AN IMAGE ORTHICON TUBE HAVING AN ELECTRON GUN, A MULTIPLIER SECTION ADJACENT SAID GUN, SAID MULTIPLIER SECTION INCLUDING AT LEAST ONE DYNODE, A TARGET, AND AN ELECTROSTATIC FIELD TERMINATING MESH MOUNTED SUBSTANTIALLY PARALLEL TO AND ADJACENT THE TARGET, WHEREBY THE BEAM SCANNING THE TARGET SHALL ALWAYS BE INCIDENT AT RIGHT ANGLES THERETO IN ALL DIRECTIONS OF BEAM DEFLECTION, SAID SYSTEM FURTHER INCLUDING A SOURCE OF POTENTIAL WHICH IS POSITIVE WITH RESPECT TO THE POTENTIAL OF SAID DYNODE, AND MEANS TO APPLY SAID POSITIVE POTENTIAL TO SAID FIELD TERMINATING MESH, THE VOLTAGE FROM SAID SOURCE BEING OF SUCH MAGNITUDE AS TO ESTABLISH A PREDETERMINED NEGATIVE POTENTIAL GRADIENT BETWEEN THE MESH AND SAID ELECTRON MULTIPLIER SECTION, WHEREBY SECONDARY ELECTRONS EMITTED FROM THE MESH ARE PREVENTED FROM REACHING SAID MULTIPLIER SECTION.
Claim 2
Independent Claim
131 words
A SYSTEM INCLUDING AN IMAGE ORTHICON TUBE HAVING AN ELECTRON GUN, A MULTIPLIER SECTION ADJACENT SAID GUN, SAID MULTIPLIER SECTION INCLUDING AT LEAST ONE DYNODE, A TARGET, AND AN ELECTROSTATIC FIELD TERMINATING MESH MOUNTED SUBSTANTIALLY PARALLEL TO AND ADJACENT THE TARGET, WHEREBY THE BEAM SCANNING THE TARGET SHALL ALWAYS BE INCIDENT AT RIGHT ANGLES THERETO IN ALL DIRECTIONS OF BEAM DEFLECTION, SAID SYSTEM FURTHER INCLUDING A SOURCE OF POTENTIAL WHICH IS POSITIVE WITH RESPECT TO THE POTENTIAL OF SAID DYNODE, AND MEANS TO APPLY SAID POSITIVE POTENTIAL TO SAID FIELD TERMINATING MESH, THE VOLTAGE FROM SAID SOURCE BEING OF SUCH MAGNITUDE AS TO ESTABLISH A PREDETERMINED NEGATIVE POTENTIAL GRADIENT BETWEEN THE MESH AND SAID ELECTRON MULTIPLIER SECTION, WHEREBY SECONDARY ELECTRONS EMITTED FROM THE MESH ARE PREVENTED FROM REACHING SAID MULTIPLIER SECTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |