US3340462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic tap changing transformer systems
Assignee: Alcatel Lucent SAS
•
Filing: 1964-01-08
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Granted: 1967-09-05
•
Expires: 1984-01-08
Abstract
No abstract record available.
Inventors
- 👤 Ebersohl Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:09
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/02; H01F29/04; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/14; G05F1/16; G05F1/20; H02; H02M; H02M1/00; H02M1/08; H02M1/083; H02M5/00; H02M5/02; H02M5/04; H02M5/22; H02M5/25; H02M5/257; H02M5/2573
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN ON-LOAD SWITCHING ARRANGEMENT FOR EFFECTING THE TRANSFER OF A CURRENT FROM ONE BRANCH OF A CIRCUIT TO ANOTHER WITHOUT POWER INTERRUPTION TO THE LOAD IMPEDANCE COMPRISING FIRST AND SECOND SWITCHING IMPEDANCES EACH SWITCHABLE BETWEEN VERY HIGH AND RELATIVELY LOW IMPEDANCE STATES, FIRST AND SECOND CONTROL MEANS FOR SWITCHING SAID FIRST AND SECOND SWITCHING IMPEDANCES, RESPECTIVELY, TO THEIR LOW IMPEDANCE STATES UPON ACTUATION THEREOF, BISTABLE ACTUATING MEANS SELECTIVELY ACTUATING SAID FIRST OR SAID SECOND CONTROL MEANS, RESPECTIVELY, IN THE FIRST AND SECOND SWITCHING STATES THEREOF FIRST AND SECOND NULL DETECTORS CONNECTED IN SERIES WITH SAID FIRST AND SECOND SWITCHING IMPEDANCE, RESPECTIVELY, FOR SWITCHING SAID BISTABLE ACTUATING MEANS TO ITS OTHER SWITCHING STATE AT THE TIME OF ZERO CURRENT IN THE OUTPUT OF THE SWITCHING IMPEDANCE CONNECTED THERETO, AND
Claim 2
Dependent Claim
128 words
AN ON-LOAD SWITCHING ARRANGEMENT FOR EFFECTING THE TRANSFER OF A CURRENT FROM ONE BRANCH OF A CIRCUIT TO ANOTHER WITHOUT POWER INTERRUPTION TO THE LOAD IMPEDANCE COMPRISING FIRST AND SECOND SWITCHING IMPEDANCES EACH SWITCHABLE BETWEEN VERY HIGH AND RELATIVELY LOW IMPEDANCE STATES, FIRST AND SECOND CONTROL MEANS FOR SWITCHING SAID FIRST AND SECOND SWITCHING IMPEDANCES, RESPECTIVELY, TO THEIR LOW IMPEDANCE STATES UPON ACTUATION THEREOF, BISTABLE ACTUATING MEANS SELECTIVELY ACTUATING SAID FIRST OR SAID SECOND CONTROL MEANS, RESPECTIVELY, IN THE FIRST AND SECOND SWITCHING STATES THEREOF FIRST AND SECOND NULL DETECTORS CONNECTED IN SERIES WITH SAID FIRST AND SECOND SWITCHING IMPEDANCE, RESPECTIVELY, FOR SWITCHING SAID BISTABLE ACTUATING MEANS TO ITS OTHER SWITCHING STATE AT THE TIME OF ZERO CURRENT IN THE OUTPUT OF THE SWITCHING IMPEDANCE CONNECTED THERETO, AND
References Cited (Backward Citations)
US3040239A
Cited
US2959726A
Cited
US3204113A
Cited
US3174096A
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US3263157A
Cited
US3195036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |