Patent JPS5268987A successfully refreshed from Google Patents.
US3365657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply
Assignee: National Aeronautics and Space Administration
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Filing: 1966-03-04
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Granted: 1968-01-23
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Expires: 1986-03-04
Abstract
No abstract record available.
Inventors
- 👤 James E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:28
CPC Classifications
H; H02; H02J; H02J3/00; H02J3/18; H02J3/1821; H02J3/1835; Y; Y02; Y02E; Y02E40/00; Y02E40/30; Y10; Y10S; Y10S174/00; Y10S174/13; Y10S174/14; Y10S174/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN AUTOMATIC POWER FACTOR CORRECTION CIRCUIT FOR PROVIDING A UNITY POWER FACTOR TO A POWER SUPPLY SOURCE IN A SYSTEM HAVING A REACTIVE LOAD COMPRISING: A TRANSFORMER HAVING AN INPUT WINDING, A CONTROL WINDING, AND AN OUTPUT WINDING, MEANS COUPLING SAID POWER SUPPLY SOURCE TO SAID INPUT WINDING; MEANS COUPLING SAID OUTPUT WINDING TO SAID REACTIVE LOAD; AND MEANS FOR PRODUCING A CURRENT IN SAID INPUT WINDING IN PHASE WITH THE VOLTAGE ACROSS SAID INPUT WINDING COMPRISING A FIRST MEANS COUPLED TO SAID CONTROL WINDING FOR PROVIDING A CONTROL CURRENT TO SAID CONTROL WINDING, SAID CONTROL CURRENT VARYING IN MAGNITUDE WITH THE AMPLITUDE OF THE CURRENT IN SAID REACTIVE LOAD.
Claim 2
Dependent Claim
110 words
AN AUTOMATIC POWER FACTOR CORRECTION CIRCUIT FOR PROVIDING A UNITY POWER FACTOR TO A POWER SUPPLY SOURCE IN A SYSTEM HAVING A REACTIVE LOAD COMPRISING: A TRANSFORMER HAVING AN INPUT WINDING, A CONTROL WINDING, AND AN OUTPUT WINDING, MEANS COUPLING SAID POWER SUPPLY SOURCE TO SAID INPUT WINDING; MEANS COUPLING SAID OUTPUT WINDING TO SAID REACTIVE LOAD; AND MEANS FOR PRODUCING A CURRENT IN SAID INPUT WINDING IN PHASE WITH THE VOLTAGE ACROSS SAID INPUT WINDING COMPRISING A FIRST MEANS COUPLED TO SAID CONTROL WINDING FOR PROVIDING A CONTROL CURRENT TO SAID CONTROL WINDING, SAID CONTROL CURRENT VARYING IN MAGNITUDE WITH THE AMPLITUDE OF THE CURRENT IN SAID REACTIVE LOAD.
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |