US3202896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three phase to single phase converter systems
Assignee: Individual
•
Filing: 1964-06-22
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Granted: 1965-08-24
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Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Lewns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
H; H01; H01F; H01F30/00; H01F30/06; H01F30/12; H01F30/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A CONVERTER SYSTEM FOR ENERGIZING A THREE-PHASE LOAD HAVING THREE INPUT TERMINALS A, B AND C FROM A SINGLE-PHASE POWER SUPPLY HAVING TWO OUTPUT TERMINALS, SAID CONVERTER SYSTEM COMPRISINGG: MEANS CONNECTING A FIRST ONE OF SAID POWER SUPPLY OUT PUT TERMINALS TO LOAD TERMINAL B; A DEPHASING CAPACITOR CONNECTED ACROSS LOAD TERMINALS B AND C; AN IRON CORE AUTOTRANSFORMER HAVING FIRST AND SECOND WINDING SECTIONS CONNECTED TOGETHER AT A CENTRAL TERMINAL, THE END TERMINALS OF SAID FIRST AND SECONND WINDING SECTIONS BEING CONNECTED,. RESPECTIVELY, TO LOAD TERMINALS C AND A, SAID FIRST WINDING SECTIONN HAVING A SUBSTANTIALLY HIGHER INDUCTIVE REACTANCEE THAN SAID SECOND WINDING SECTION; AND MEANS CONNECTING SAID CENTRAL TERMINAL OF SAID AUTOTRANSFORMER TO THE OTHER POWER SUPPLY OUTPUT TERMINAL.
Claim 2
Dependent Claim
121 words
A CONVERTER SYSTEM FOR ENERGIZING A THREE-PHASE LOAD HAVING THREE INPUT TERMINALS A, B AND C FROM A SINGLE-PHASE POWER SUPPLY HAVING TWO OUTPUT TERMINALS, SAID CONVERTER SYSTEM COMPRISINGG: MEANS CONNECTING A FIRST ONE OF SAID POWER SUPPLY OUT PUT TERMINALS TO LOAD TERMINAL B; A DEPHASING CAPACITOR CONNECTED ACROSS LOAD TERMINALS B AND C; AN IRON CORE AUTOTRANSFORMER HAVING FIRST AND SECOND WINDING SECTIONS CONNECTED TOGETHER AT A CENTRAL TERMINAL, THE END TERMINALS OF SAID FIRST AND SECONND WINDING SECTIONS BEING CONNECTED,. RESPECTIVELY, TO LOAD TERMINALS C AND A, SAID FIRST WINDING SECTIONN HAVING A SUBSTANTIALLY HIGHER INDUCTIVE REACTANCEE THAN SAID SECOND WINDING SECTION; AND MEANS CONNECTING SAID CENTRAL TERMINAL OF SAID AUTOTRANSFORMER TO THE OTHER POWER SUPPLY OUTPUT TERMINAL.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |