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US3328667A
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Dc-ac inverter with protective saturating reactors
Assignee: Westinghouse Electric Corp
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Filing: 1964-01-31
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Granted: 1967-06-27
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Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 Victor C Shaneman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:46
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/08; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
A BRIDGE TYPE PARALLEL DC-AC INVERTER COMPRISING A PAIR OF DC INPUT LINES, A PAIR OF AC OUTPUT LINES, A PLURALITY OF CONTROLLED ELECTRIC VALVES, A FOUR-LEGGED BRIDGE HAVING ONE PAIR OF OPPOSITE CORNERS COUPLED TO SAID DC INPUT LINES AND THE OTHER PAIR OF OPPOSITE CORNERS COUPLED TO SAID AC OUTPUT LINES, A PLURALITY OF SATURABLE FIRST REACTORS EACH OF SAID LEGS INCLUDING IN SERIES A DIFFERENT ONE OF SAID FIRST REACTORS AND THE MAIN CURRENT PATH OF A DIFFERENT ONE OF SAID CONTROLLED VALVES, EACH OF SAID VALVES HAVING A FORWARD DIRECTION IN WHICH IT IS RENDERED CONDUCTIVE IN RESPONSE TO A GATING SIGNAL, ALL OF SAID VALVES BEING POLED ALIKE RELATIVE TO SAID DC INPUT LINES, WHEREBY SAID VALVES ARE CONVENTIONALLY POLED TO PROVIDE THE INVERTER FUNCTION, THOSE OF SAID VALVES CONNECTED IN ONE SET OF OPPOSITE LEGS OF THE BRIDGE BEING REFERRED TO AS A FIRST VALVE PAIR AND THE OTHER TWO VALVES IN THE OTHER SET OF OPPOSITE LEGS OF THE
Claim 2
Dependent Claim
166 words
A BRIDGE TYPE PARALLEL DC-AC INVERTER COMPRISING A PAIR OF DC INPUT LINES, A PAIR OF AC OUTPUT LINES, A PLURALITY OF CONTROLLED ELECTRIC VALVES, A FOUR-LEGGED BRIDGE HAVING ONE PAIR OF OPPOSITE CORNERS COUPLED TO SAID DC INPUT LINES AND THE OTHER PAIR OF OPPOSITE CORNERS COUPLED TO SAID AC OUTPUT LINES, A PLURALITY OF SATURABLE FIRST REACTORS EACH OF SAID LEGS INCLUDING IN SERIES A DIFFERENT ONE OF SAID FIRST REACTORS AND THE MAIN CURRENT PATH OF A DIFFERENT ONE OF SAID CONTROLLED VALVES, EACH OF SAID VALVES HAVING A FORWARD DIRECTION IN WHICH IT IS RENDERED CONDUCTIVE IN RESPONSE TO A GATING SIGNAL, ALL OF SAID VALVES BEING POLED ALIKE RELATIVE TO SAID DC INPUT LINES, WHEREBY SAID VALVES ARE CONVENTIONALLY POLED TO PROVIDE THE INVERTER FUNCTION, THOSE OF SAID VALVES CONNECTED IN ONE SET OF OPPOSITE LEGS OF THE BRIDGE BEING REFERRED TO AS A FIRST VALVE PAIR AND THE OTHER TWO VALVES IN THE OTHER SET OF OPPOSITE LEGS OF THE
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |