US3205430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-phase line voltage regulator
Assignee: Yawata Iron and Steel Co Ltd
•
Filing: 1961-09-27
•
Granted: 1965-09-07
•
Expires: 1981-09-27
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 17:52
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A FERRO-RESONANCE TYPE THREE-PHASE LINE VOLTAGE REGULATOR, COMPRISING THREE LINEAR REACTORS ADAPTED TO BE INSERTED BETWEEN THREE INPUT TERMINALS OF A THREE-PHASE ALTERNATING CURRENT SOURCE AND THREE LOAD TERMINALS RESPECTIVELY, A TAP ON EACH OF THE WINDINGS OF SAID LINEAR REACTORS INTERMEDIATE THE ENDS OF THE RESPECTIVE REACTOR ON WHICH THE TAP IS LOACTED, A THREE-LEG MAGNETIC CORE, THREE SATURATION REACTANE WINDINGS ONE ON EACH LEG OF SAID THREE-LEG MAGNETIC CORE, AND THREE CONDENSORS, THE THREE WINDINGS OF SAID SATURATION REACTORS CONNECTED IN PARALLEL WITH THE THREE CONDENSERS RESPECTIVELY WITH EACH REACTOR AND CONDENSER TOGETHER FORMING A FERRO-RESONANCE TANK CIRCUIT, THE RESPECTIVE ONE ENDS OF THE TANK CIRCUITS BEING Y-CONNECTED AND THE OTHER ENDS BEING CONNECTED TO SAID TAPS ON THE WINDINGS OF THE LINEAR REACTORS RESPECTIVELY, WHEREBY THE OUTPUT VOLTAGE AT THE LOAD TERMINALS IS KEPT CONSTANT.
Claim 2
Dependent Claim
138 words
A FERRO-RESONANCE TYPE THREE-PHASE LINE VOLTAGE REGULATOR, COMPRISING THREE LINEAR REACTORS ADAPTED TO BE INSERTED BETWEEN THREE INPUT TERMINALS OF A THREE-PHASE ALTERNATING CURRENT SOURCE AND THREE LOAD TERMINALS RESPECTIVELY, A TAP ON EACH OF THE WINDINGS OF SAID LINEAR REACTORS INTERMEDIATE THE ENDS OF THE RESPECTIVE REACTOR ON WHICH THE TAP IS LOACTED, A THREE-LEG MAGNETIC CORE, THREE SATURATION REACTANE WINDINGS ONE ON EACH LEG OF SAID THREE-LEG MAGNETIC CORE, AND THREE CONDENSORS, THE THREE WINDINGS OF SAID SATURATION REACTORS CONNECTED IN PARALLEL WITH THE THREE CONDENSERS RESPECTIVELY WITH EACH REACTOR AND CONDENSER TOGETHER FORMING A FERRO-RESONANCE TANK CIRCUIT, THE RESPECTIVE ONE ENDS OF THE TANK CIRCUITS BEING Y-CONNECTED AND THE OTHER ENDS BEING CONNECTED TO SAID TAPS ON THE WINDINGS OF THE LINEAR REACTORS RESPECTIVELY, WHEREBY THE OUTPUT VOLTAGE AT THE LOAD TERMINALS IS KEPT CONSTANT.
References Cited (Backward Citations)
US2967271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |