US3286195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor oscillator for uhf tuners with increased frequency range
Assignee: Telefunken Patentverwertungs GmbH
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Filing: 1964-05-04
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Granted: 1966-11-15
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Bachnick Werner
- 👤 Heitefuss Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:35
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/18; H03B5/1805; H03B2201/00; H03B2201/01; H03B2201/011; H03B2201/03; H03B2201/031; H03D; H03D7/00; H03D7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN OSCILLATOR COMPRISING IN COMBINATION: (A) QUARTER WAVE LENGTH RESONANT TANK CIRCUIT MEANS INCLUDING A HOUSING CONSTITUTING A GROUNDED OUTER CONDUCTOR FOR SAID TANK CIRCUIT MEANS, AND A TRANSISTOR PROVIDED WITH A BASE, AN EMITTER AND A COLLECTOR DISPOSED IN SAID HOUSING, SAID BASE BEING GROUNDED TO SAID HOUSING AND SAID COLLECTOR BEING ELECTRICALLY COUPLED WITH SAID TANK CIRCUIT MEANS, SAID TANK CIRCUIT MEANS COOPERATING WITH SAID TRANSISTOR FOR PROVIDING HIGH FREQUENCY OSCILLATIONS; (B) A CAPACITOR CONNECTED ACROSS SAID EMITTER AND COLLECTOR SAID CAPACITOR PROVIDING A FIRST FEEDBACK PATH; AND (C) INDUCTIVE COUPLING MEANS CONNECTED BETWEEN SAID EMITTER AND SAID COLLECTOR FOR PROVIDING A SECOND FEEDBACK PATH WHICH INCREASES THE FEEDBACK OF THE LOWER FREQUENCIES OF THE FREQUENCY RANGE THROUGH WHICH THE OSCILLATOR IS TO BE TUNED.
Claim 2
Dependent Claim
127 words
AN OSCILLATOR COMPRISING IN COMBINATION: (A) QUARTER WAVE LENGTH RESONANT TANK CIRCUIT MEANS INCLUDING A HOUSING CONSTITUTING A GROUNDED OUTER CONDUCTOR FOR SAID TANK CIRCUIT MEANS, AND A TRANSISTOR PROVIDED WITH A BASE, AN EMITTER AND A COLLECTOR DISPOSED IN SAID HOUSING, SAID BASE BEING GROUNDED TO SAID HOUSING AND SAID COLLECTOR BEING ELECTRICALLY COUPLED WITH SAID TANK CIRCUIT MEANS, SAID TANK CIRCUIT MEANS COOPERATING WITH SAID TRANSISTOR FOR PROVIDING HIGH FREQUENCY OSCILLATIONS; (B) A CAPACITOR CONNECTED ACROSS SAID EMITTER AND COLLECTOR SAID CAPACITOR PROVIDING A FIRST FEEDBACK PATH; AND (C) INDUCTIVE COUPLING MEANS CONNECTED BETWEEN SAID EMITTER AND SAID COLLECTOR FOR PROVIDING A SECOND FEEDBACK PATH WHICH INCREASES THE FEEDBACK OF THE LOWER FREQUENCIES OF THE FREQUENCY RANGE THROUGH WHICH THE OSCILLATOR IS TO BE TUNED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |