Patent US3147419A successfully refreshed from Google Patents.
US3147419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer coils energizing scr gate circuit
Assignee: Individual
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Filing: 1961-11-02
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Granted: 1964-09-01
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Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 George W Cope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:01
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A CIRCUIT FOR PROVIDING DRIVING CURRENT TO THE ACTUATING COILS OF A TRANSDUCER COMPRISING A FIRST SERIES CIRCUIT INCLUDING A DIRECT CURRENT POWER SOURCE, A FIRST SILICON CONTROLLED RECTIFIER, A FIRST CURRENT ACTUATED ELEMENT AND STORAGE CAPACITOR MEANS, A SECOND SERIES CIRCUIT CONSISTING OF SAID STORAGE CAPACITOR MEANS, A SECOND CURRENT ACTUATED ELEMENT AND A SECOND SILICON CONTROLLED RECTIFIER, AND PULSE MEANS COUPLED TO SAID FIRST SILICON CONTROLLED RECTIFIER FOR INITIATING CURRENT FLOW IN SAID FIRST SERIES CIRCUIT TO CHARGE SAID STORAGE CAPACITOR MEANS IN A FIRST DIRECTION, SAID CHARGE ON SAID STORAGE CAPACITOR MEANS IN SAID FIRST DIRECTION PROVIDING A REVERSE BIAS TO SAID FIRST SILICON CONTROLLED RECTIFIER TO OPEN SAID FIRST SERIES CIRCUIT INCLUDING SAID DIRECT CURRENT POWER SUPPLY AND TO FORWARD BIAS SAID SECOND SILICON CONTROLLED RECTIFIER, SAID PULSE MEANS COUPLED TO SAID SECOND SILICON CONTROLLED RECTIFIER FOR INITIATING CURRENT FLOW IN SAID SECOND SERIES CIRCUIT TO CHARGE SAID STORAGE CAPACITOR MEANS IN A DIRECTION OPPOSITE SAID FIRST DIRECTION WHEREBY DRIVING CURRENT IS SUPPLIED ALTERNATELY TO SAID FIRST AND SECOND CURRENT ACTUATED ELEMENTS.
Claim 2
Dependent Claim
176 words
A CIRCUIT FOR PROVIDING DRIVING CURRENT TO THE ACTUATING COILS OF A TRANSDUCER COMPRISING A FIRST SERIES CIRCUIT INCLUDING A DIRECT CURRENT POWER SOURCE, A FIRST SILICON CONTROLLED RECTIFIER, A FIRST CURRENT ACTUATED ELEMENT AND STORAGE CAPACITOR MEANS, A SECOND SERIES CIRCUIT CONSISTING OF SAID STORAGE CAPACITOR MEANS, A SECOND CURRENT ACTUATED ELEMENT AND A SECOND SILICON CONTROLLED RECTIFIER, AND PULSE MEANS COUPLED TO SAID FIRST SILICON CONTROLLED RECTIFIER FOR INITIATING CURRENT FLOW IN SAID FIRST SERIES CIRCUIT TO CHARGE SAID STORAGE CAPACITOR MEANS IN A FIRST DIRECTION, SAID CHARGE ON SAID STORAGE CAPACITOR MEANS IN SAID FIRST DIRECTION PROVIDING A REVERSE BIAS TO SAID FIRST SILICON CONTROLLED RECTIFIER TO OPEN SAID FIRST SERIES CIRCUIT INCLUDING SAID DIRECT CURRENT POWER SUPPLY AND TO FORWARD BIAS SAID SECOND SILICON CONTROLLED RECTIFIER, SAID PULSE MEANS COUPLED TO SAID SECOND SILICON CONTROLLED RECTIFIER FOR INITIATING CURRENT FLOW IN SAID SECOND SERIES CIRCUIT TO CHARGE SAID STORAGE CAPACITOR MEANS IN A DIRECTION OPPOSITE SAID FIRST DIRECTION WHEREBY DRIVING CURRENT IS SUPPLIED ALTERNATELY TO SAID FIRST AND SECOND CURRENT ACTUATED ELEMENTS.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |