US3241088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor oscillator feedback circuit
Assignee: Motors Liquidation Co
•
Filing: 1956-01-12
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Granted: 1966-03-15
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Expires: 1976-01-12
Abstract
No abstract record available.
Inventors
- 👤 James H Guyton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:31
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1231; H03B5/1296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A TRANSISTOR OSCILLATOR OF THE TYPE COMPRISING A PAIR OF TRANSISTORS, AN OUTPUT TRANSFORMER HAVING A PAIR OF PRIMARY WINDING PORTIONS WITH A COMMON TAP, A VOLTAGE SOURCE, AN OUTPUT CIRCUIT FOR EACH TRANSISTOR EXTENDING BETWEEN THE COLLECTOR AND ONE OF THE OTHER ELECTRODES THEREOF, EACH OF THE OUTPUT CIRCUITS INCLUDING A DIFFERENT ONE OF THE PRIMARY WINDING PORTIONS AND THE VOLTAGE SOURCE, A PAIR OF FEEDBACK WINDINGS ON THE TRANSFORMER, AN INPUT CIRCUIT FOR EACH OF THE TRANSISTORS EXTENDING BETWEEN THE BASE AND ONE OF THE OTHER ELECTRODES AND INCLUDING ONE OF THE FEEDBACK WINDINGS IN A REGENERATIVE CONNECTION, SAID OSCILLATOR BEING CHARACTERIZED BY ALTERNATE SWITCHING OF THE TRANSISTOR BETWEEN CONDUCTION AND NON-CONDUCTION BY THE FEEDBACK VOLTAGE, THE IMPROVEMENT COMPRISING A RESISTOR AND CONDENSER CONNECTED IN PARALLEL, IN THE INPUT CIRCUIT OF EACH TRANSISTOR WHEREBY THE CONDENSER PERMITS THE FEEDBACK VOLTAGE TO PRODUCE A FEEDBACK CURRENT OF HIGH VALUE DURING THE SWITCHING OF THE
Claim 2
Dependent Claim
156 words
IN A TRANSISTOR OSCILLATOR OF THE TYPE COMPRISING A PAIR OF TRANSISTORS, AN OUTPUT TRANSFORMER HAVING A PAIR OF PRIMARY WINDING PORTIONS WITH A COMMON TAP, A VOLTAGE SOURCE, AN OUTPUT CIRCUIT FOR EACH TRANSISTOR EXTENDING BETWEEN THE COLLECTOR AND ONE OF THE OTHER ELECTRODES THEREOF, EACH OF THE OUTPUT CIRCUITS INCLUDING A DIFFERENT ONE OF THE PRIMARY WINDING PORTIONS AND THE VOLTAGE SOURCE, A PAIR OF FEEDBACK WINDINGS ON THE TRANSFORMER, AN INPUT CIRCUIT FOR EACH OF THE TRANSISTORS EXTENDING BETWEEN THE BASE AND ONE OF THE OTHER ELECTRODES AND INCLUDING ONE OF THE FEEDBACK WINDINGS IN A REGENERATIVE CONNECTION, SAID OSCILLATOR BEING CHARACTERIZED BY ALTERNATE SWITCHING OF THE TRANSISTOR BETWEEN CONDUCTION AND NON-CONDUCTION BY THE FEEDBACK VOLTAGE, THE IMPROVEMENT COMPRISING A RESISTOR AND CONDENSER CONNECTED IN PARALLEL, IN THE INPUT CIRCUIT OF EACH TRANSISTOR WHEREBY THE CONDENSER PERMITS THE FEEDBACK VOLTAGE TO PRODUCE A FEEDBACK CURRENT OF HIGH VALUE DURING THE SWITCHING OF THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |