US3126498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric cooling of vidicons
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:40
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/50; H04N23/51; H10; H10N; H10N10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A PICTURE PICKUP TUBE OF THE TYPE HAVING A PHOTOCONDUCTIVE TARGET CLOSE TO THE END OR FACE PLATE OF THE TUBE; MEANS FOR COOLING SAID TARGET, SAID MEANS COMPRISING A METAL COOLING BLOCK IN CONTACT WITH SAID FACE PLATE, SAID COOLING BLOCK HAVING AN OPENING THERETHROUGH WHICH IS COAXIAL WITH SAID TUBE FOR PROVIDING AN OPTICAL PATH THROUGH WHICH AN IMAGE MAY BE FORMED ON SAID TARGET, A THERMOELECTRIC COOLING UNIT IN CONTACT WITH SAID COOLING BLOCK; A MAGNETIC FIELD BALANCING COIL POSITIONED OPPOSIT THE FACE PLATE OF SAID TUBE AND POSITIONED COAXIALLY WITH SAID TUBE, AND MEANS CONNECTING SAID COIL AND SAID COOLING UNIT IN SERIES, SAID COIL BEING WOUND IN THE DIRECTION TO PROVIDE A FIELD THAT OPPOSES THE AXIAL COMPONENT OF THE MAGNETIC FIELD CAUSED BY THE CURRENT FLOW THROUGH THE COOLING UNIT, SAID COIL ALSO HAVING A NUMBER OF TURNS SUCH THAT ITS FIELD BALANCES OUT SAID AXIAL COMPONENT.
Claim 2
Dependent Claim
153 words
A PICTURE PICKUP TUBE OF THE TYPE HAVING A PHOTOCONDUCTIVE TARGET CLOSE TO THE END OR FACE PLATE OF THE TUBE; MEANS FOR COOLING SAID TARGET, SAID MEANS COMPRISING A METAL COOLING BLOCK IN CONTACT WITH SAID FACE PLATE, SAID COOLING BLOCK HAVING AN OPENING THERETHROUGH WHICH IS COAXIAL WITH SAID TUBE FOR PROVIDING AN OPTICAL PATH THROUGH WHICH AN IMAGE MAY BE FORMED ON SAID TARGET, A THERMOELECTRIC COOLING UNIT IN CONTACT WITH SAID COOLING BLOCK; A MAGNETIC FIELD BALANCING COIL POSITIONED OPPOSIT THE FACE PLATE OF SAID TUBE AND POSITIONED COAXIALLY WITH SAID TUBE, AND MEANS CONNECTING SAID COIL AND SAID COOLING UNIT IN SERIES, SAID COIL BEING WOUND IN THE DIRECTION TO PROVIDE A FIELD THAT OPPOSES THE AXIAL COMPONENT OF THE MAGNETIC FIELD CAUSED BY THE CURRENT FLOW THROUGH THE COOLING UNIT, SAID COIL ALSO HAVING A NUMBER OF TURNS SUCH THAT ITS FIELD BALANCES OUT SAID AXIAL COMPONENT.
References Cited (Backward Citations)
US2517807A
Cited
US2975283A
Cited
US2907914A
Cited
US2879424A
Cited
US2967961A
Cited
US3064440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |