Patent US3264488A successfully refreshed from Google Patents.
US3264488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced current pumped parametric converter
Assignee: RCA Corp
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Filing: 1964-12-10
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Granted: 1966-08-02
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Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Ellwood P Mcgrogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:28
CPC Classifications
H; H03; H03F; H03F7/00; H03F7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A BALANCED PARAMETRIC CONVERTER COMPRISING: (A) FIRST AND SECOND VARIABLE CAPACITANCE DIODES, (B) MEANS FOR COUPLING SAID VARIABLE CAPACITANCE DIODES TO A FIRST SOURCE OF CURRENT AT A FIRST FREQUENCY IN A PUSH-PULL CIRCUIT FORMING A LOW IMPEDANCE RESONANT LOOP AT SAID FIRST FREQUENCY, (C) MEANS FOR COUPLING SAID VARIABLE CAPACITANCE DIODES TO A SECOND SOURCE OF CURRENT AT A SECOND FREQUENCY IN A MANNER SUCH THAT EQUAL CURRENTS ARE CAUSED TO FLOW THROUGH SAID DIODES IRRESPECTIVE OF DIFFERENCES IN THE IMPEDANCES OF SAID FIRST AND SECOND VARIABLE CAPACITANCE DIODES, (D) CIRCUIT MEANS FOR COUPLING SAID VARIABLE CAPACITANCE DIODES TO A LOAD IMPEDANCE IN A PUSH-PUSH CIRCUIT WITH SAID CIRCUIT MEANS PERMITTING ONLY A CURRENT AT A THIRD FREQUENCCY WHICH THIRD FREQUENCY IS DIFFERENT FROM SAID FIRST FREQUENCY BY AT LEAST SAID SECOND FREQUENCY DUE TO SAID FIRST AND SECOND FREQUENCY CURRENTS FLOWING THROUGH SAID NONLINEAR CAPACITANCE DIODES.
Claim 2
Dependent Claim
148 words
A BALANCED PARAMETRIC CONVERTER COMPRISING: (A) FIRST AND SECOND VARIABLE CAPACITANCE DIODES, (B) MEANS FOR COUPLING SAID VARIABLE CAPACITANCE DIODES TO A FIRST SOURCE OF CURRENT AT A FIRST FREQUENCY IN A PUSH-PULL CIRCUIT FORMING A LOW IMPEDANCE RESONANT LOOP AT SAID FIRST FREQUENCY, (C) MEANS FOR COUPLING SAID VARIABLE CAPACITANCE DIODES TO A SECOND SOURCE OF CURRENT AT A SECOND FREQUENCY IN A MANNER SUCH THAT EQUAL CURRENTS ARE CAUSED TO FLOW THROUGH SAID DIODES IRRESPECTIVE OF DIFFERENCES IN THE IMPEDANCES OF SAID FIRST AND SECOND VARIABLE CAPACITANCE DIODES, (D) CIRCUIT MEANS FOR COUPLING SAID VARIABLE CAPACITANCE DIODES TO A LOAD IMPEDANCE IN A PUSH-PUSH CIRCUIT WITH SAID CIRCUIT MEANS PERMITTING ONLY A CURRENT AT A THIRD FREQUENCCY WHICH THIRD FREQUENCY IS DIFFERENT FROM SAID FIRST FREQUENCY BY AT LEAST SAID SECOND FREQUENCY DUE TO SAID FIRST AND SECOND FREQUENCY CURRENTS FLOWING THROUGH SAID NONLINEAR CAPACITANCE DIODES.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |