US3244967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-phase voltage regulator
Assignee: Yawata Iron and Steel Co Ltd
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Filing: 1962-02-27
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Granted: 1966-04-05
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Expires: 1982-02-27
Abstract
No abstract record available.
Inventors
- 👤 Tango Tomokichi
- 👤 Kobayashi Hiroshi
- 👤 Anayama Takeshi
- 👤 Miyazawa Eijiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:32
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A THREE-PHASE VOLTAGE REGULATOR FOR SUPPLYING A WELL BALANCED THREE-PHASE CONSTANT VOLTAGE HAVING GOOD SINUSOIDAL WAVE-FORM, SAID REGULATOR COMPRISING THREE LINEAR REACTORS EACH HAVING A PRIMARY AND SECONDARY WINDING WOUND ON A COMMON MAGNETIC CORE, SAID PRIMARY AND SECONDARY WINDING BEING CONNECTED IN SERIES, SAID REACTORS EACH BEING CONNECTED BETWEEN AN INPUT TERMINAL AND AN OUTPUT TERMINAL, THREE SATURABLE REACTORS EACH HAVING A PRIMARY AND SECONDARY WINDING WOUND ON A COMMON MAGNETIC CORE, AND THREE CONDENSERS, EACH CONDENSER BEING CONNECTED IN PARALLEL WITH A RESPECTIVE PRIMARY WINDING OF A SATURABLE REACTOR TO FORM A TANK CIRCUIT RESONATING AT A FUNDAMENTAL FREQUENCY, THE CONNECTION OF THE TANK CIRCUIT TO THE LINEAR REACTOR BEING FROM AN INTERMEDIATE POINT OF THE PRIMARY WINDINGS OF THE SATURABLE REACTORS TO THE POINT AT WHICH THE PRIMARY AND SECONDARY WINDINGS OF THE LINEAR REACTORS ARE CONNECTED, THE ENDS OF SAID TANK CIRCUITS OPPOSITE THE CONNECTIONS TO THE LINEAR REACTORS BEING CONNECTED IN STAR, AND SAID SECONDARY WINDINGS OF EACH SATURABLE REACTOR BEING CONNECTED IN DELTA, WHEREBY THIRD HARMONICS AND MULTIPLES THEREOF ARE SUBSTANTIALLY ELIMINATED FROM THE TANK CIRCUITS AND ARE THEREBY SUBSTANTIALLY ELIMINATED FROM THE OUTPUT VOLTAGE AT THE OUTPUT TERMINALS.
Claim 2
Dependent Claim
195 words
A THREE-PHASE VOLTAGE REGULATOR FOR SUPPLYING A WELL BALANCED THREE-PHASE CONSTANT VOLTAGE HAVING GOOD SINUSOIDAL WAVE-FORM, SAID REGULATOR COMPRISING THREE LINEAR REACTORS EACH HAVING A PRIMARY AND SECONDARY WINDING WOUND ON A COMMON MAGNETIC CORE, SAID PRIMARY AND SECONDARY WINDING BEING CONNECTED IN SERIES, SAID REACTORS EACH BEING CONNECTED BETWEEN AN INPUT TERMINAL AND AN OUTPUT TERMINAL, THREE SATURABLE REACTORS EACH HAVING A PRIMARY AND SECONDARY WINDING WOUND ON A COMMON MAGNETIC CORE, AND THREE CONDENSERS, EACH CONDENSER BEING CONNECTED IN PARALLEL WITH A RESPECTIVE PRIMARY WINDING OF A SATURABLE REACTOR TO FORM A TANK CIRCUIT RESONATING AT A FUNDAMENTAL FREQUENCY, THE CONNECTION OF THE TANK CIRCUIT TO THE LINEAR REACTOR BEING FROM AN INTERMEDIATE POINT OF THE PRIMARY WINDINGS OF THE SATURABLE REACTORS TO THE POINT AT WHICH THE PRIMARY AND SECONDARY WINDINGS OF THE LINEAR REACTORS ARE CONNECTED, THE ENDS OF SAID TANK CIRCUITS OPPOSITE THE CONNECTIONS TO THE LINEAR REACTORS BEING CONNECTED IN STAR, AND SAID SECONDARY WINDINGS OF EACH SATURABLE REACTOR BEING CONNECTED IN DELTA, WHEREBY THIRD HARMONICS AND MULTIPLES THEREOF ARE SUBSTANTIALLY ELIMINATED FROM THE TANK CIRCUITS AND ARE THEREBY SUBSTANTIALLY ELIMINATED FROM THE OUTPUT VOLTAGE AT THE OUTPUT TERMINALS.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |