US3153201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator-limiter-detector apparatus and method
Assignee: Individual
•
Filing: 1961-12-05
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Granted: 1964-10-13
•
Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Walter D Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:15
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN OSCILLATOR-LIMITER-DETECTOR COMPRISING A FIRST ELECTRON TUBE SECTION SERVING AS A CATHODE FOLLOWER; A TANK CIRCUIT CONNECTED BETWEEN GROUND AND THE GRID OF SAID CATHODE FOLLOWER TO PROVIDE THE INPUT TO SAID CATHODE FOLLOWER; A SECOND ELECTRON TUBE SECTION OPERATING AS A CATHODE-DRIVEN DETECTOR, IN WHICH DETECTION TAKES PLACE BETWEEN ITS GRID AND ITS CATHODE, AND AS A PLATE-LIMITED RF AMPLIFIER; MEANS CATHODE-COUPLING THE SIGNAL FROM THE OUTPUT OF THE CATHODE FOLLOWER TO THE CATHODE OF SAID SECOND TUBE SECTION; MEANS SUPPLYING A VARIABLE DIRECT PLATE SUPPLY VOLTAGE TO THE PLATE CIRCUIT OF SAID AMPLIFIER OF SUCH A MAGNITUDE THAT THE PLATE VOLTAGE OF SAID AMPLIFIER REMAINS ALWAYS AT LESS THAN ONE HALF THE NORMAL OPERATING VOLTAGE FOR SAID AMPLIFIER TUBE SECTION; MEANS CONNECTED BETWEEN SAID INPUT TANK CIRCUIT AND THE PLATE OF SAID AMPLIFIER TUBE SECTION TO FEED BACK RF SIGNAL FROM SAID PLATE TO SAID INPUT TANK CIRCUIT; AND MEANS CONNECTED BETWEEN GROUND AND GRID IN SAID AMPLIFIER TUBE SECTION TO PROVIDE A FILTERED, DETECTED OUTPUT ESSENTIALLY FREE OF RF CONTENT.
Claim 2
Dependent Claim
173 words
AN OSCILLATOR-LIMITER-DETECTOR COMPRISING A FIRST ELECTRON TUBE SECTION SERVING AS A CATHODE FOLLOWER; A TANK CIRCUIT CONNECTED BETWEEN GROUND AND THE GRID OF SAID CATHODE FOLLOWER TO PROVIDE THE INPUT TO SAID CATHODE FOLLOWER; A SECOND ELECTRON TUBE SECTION OPERATING AS A CATHODE-DRIVEN DETECTOR, IN WHICH DETECTION TAKES PLACE BETWEEN ITS GRID AND ITS CATHODE, AND AS A PLATE-LIMITED RF AMPLIFIER; MEANS CATHODE-COUPLING THE SIGNAL FROM THE OUTPUT OF THE CATHODE FOLLOWER TO THE CATHODE OF SAID SECOND TUBE SECTION; MEANS SUPPLYING A VARIABLE DIRECT PLATE SUPPLY VOLTAGE TO THE PLATE CIRCUIT OF SAID AMPLIFIER OF SUCH A MAGNITUDE THAT THE PLATE VOLTAGE OF SAID AMPLIFIER REMAINS ALWAYS AT LESS THAN ONE HALF THE NORMAL OPERATING VOLTAGE FOR SAID AMPLIFIER TUBE SECTION; MEANS CONNECTED BETWEEN SAID INPUT TANK CIRCUIT AND THE PLATE OF SAID AMPLIFIER TUBE SECTION TO FEED BACK RF SIGNAL FROM SAID PLATE TO SAID INPUT TANK CIRCUIT; AND MEANS CONNECTED BETWEEN GROUND AND GRID IN SAID AMPLIFIER TUBE SECTION TO PROVIDE A FILTERED, DETECTED OUTPUT ESSENTIALLY FREE OF RF CONTENT.
References Cited (Backward Citations)
US2772391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |