US3155873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistorized deflection circuit with selective feedback
Assignee: Raytheon Co
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Filing: 1961-04-18
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Granted: 1964-11-03
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Paschal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:08
CPC Classifications
H; H03; H03K; H03K6/00; H03K6/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN APPARATUS FOR MAGNETICALLY DEFLECTING THE ELECTRON BEAM OF A CATHODE-RAY TYPE TUBE, SAID APPARATUS COMPRISING FIRST AND SECOND DEFLECTION YOKE WINDINGS EACH HAVING FIRST AND SECOND TERMINALS, SAID SECOND TERMINALS THEREOF BEING RETURNED TO A COMMON JUNCTION MAINTAINED AT GROUND POTENTIAL; FIRST AND SECOND TRANSISTORS OF LIKE CONDUCTIVITY TYPES RESPONSIVE TO PUSH-PULL DEFLECTION SIGNALS AND COUPLED TO SAID FIRST TERMINALS OF SAID FIRST AND SECOND DEFLECTION YOKE WINDINGS, RESPECTIVELY, FOR PROVIDING CURRENT FLOW THERETHROUGH; MEANS CONNECTED TO SAID FIRST AND SECOND DEFLECTION YOKE WINDINGS FOR GENERATING A TRACKING VOLTAGE WHICH FOLLOWS THE MORE NEGATIVE VOLTAGE APPEARING ON EITHER OF SAID WINDINGS BY A PREDETERMINED AMOUNT AND FOR APPLYING SAID TRACKING VOLTAGE TO SAID FIRST AND SECOND TRANSISTORS; AND MEANS CONNECTED TO SAID FIRST AND SECOND TRANSISTORS FOR SUPPLYING A CONSTANT CURRENT THERETO THEREBY TO MINIMIZE ENERGY DISSIPATION THEREIN.
Claim 2
Independent Claim
139 words
AN APPARATUS FOR MAGNETICALLY DEFLECTING THE ELECTRON BEAM OF A CATHODE-RAY TYPE TUBE, SAID APPARATUS COMPRISING FIRST AND SECOND DEFLECTION YOKE WINDINGS EACH HAVING FIRST AND SECOND TERMINALS, SAID SECOND TERMINALS THEREOF BEING RETURNED TO A COMMON JUNCTION MAINTAINED AT GROUND POTENTIAL; FIRST AND SECOND TRANSISTORS OF LIKE CONDUCTIVITY TYPES RESPONSIVE TO PUSH-PULL DEFLECTION SIGNALS AND COUPLED TO SAID FIRST TERMINALS OF SAID FIRST AND SECOND DEFLECTION YOKE WINDINGS, RESPECTIVELY, FOR PROVIDING CURRENT FLOW THERETHROUGH; MEANS CONNECTED TO SAID FIRST AND SECOND DEFLECTION YOKE WINDINGS FOR GENERATING A TRACKING VOLTAGE WHICH FOLLOWS THE MORE NEGATIVE VOLTAGE APPEARING ON EITHER OF SAID WINDINGS BY A PREDETERMINED AMOUNT AND FOR APPLYING SAID TRACKING VOLTAGE TO SAID FIRST AND SECOND TRANSISTORS; AND MEANS CONNECTED TO SAID FIRST AND SECOND TRANSISTORS FOR SUPPLYING A CONSTANT CURRENT THERETO THEREBY TO MINIMIZE ENERGY DISSIPATION THEREIN.
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |