US3229191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural load inverter circuit
Assignee: Lucas Support Services Ltd
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Filing: 1962-04-10
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Granted: 1966-01-11
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Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Williamson Keith Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:36
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/73; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/51; H02M7/515; H02M7/5152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
AN INVERTER COMPRISING IN COMBINATION FIRST AND SECOND TERMINALS FOR CONNECTION TO A D.C. SOURCE, A TRANSFORMER HAVING A SECONDARY WINDING IN WHICH THE REQUIRED A.C. OUPUT IS PRODUCED AND A PRIMARY WINDING, MEANS CONNECTING THE MID-POINT OF SAID PRIMARY WINDING TO THE FIRST TERMINAL, FIRST AND SECOND CONTROLLED RECTIFIERS THROUGH WHICH THE ENDS OF THE PRIMARY WINDING RESPECTIVELY ARE CONNECTED TO THE SECOND TERMINAL, A THIRD CONTROLLED RECTIFIER, A FOURTH CONTROLLED RECTIFIER AND AN INDUCTIVE LOAD CONNECTED IN SERIES BETWEEN SAID TERMINALS, A FIRST CAPACITOR CONNECTED TO THE SECOND TERMINAL THROUGH THE FIRST CONTROLLED RECTIFIER AND CONNECTED TO THE FIRST TERMINAL THROUGH THE FOURTH CONTROLLED RECTIFIER AND THE INDUCTIVE LOADS IN SERIES, A SECOND CAPACITOR CONNECTED TO THE SECOND TERMINAL THROUGH THE SECOND CONTROLLED RECTIFIER AND CONNECTED TO THE FIRST TERMINAL THROUGH THE FOURTH CONTROLLED RECTIFIER AND THE INDUCTIVE LOAD IN SERIES, AND MEANS FOR RENDERING THE FIRST, FOURTH, THIRD, SECOND, FOURTH, THIRD CONTROLLED RECTIFIERS CONDUCTIVE IN THAT ORDER.
Claim 2
Dependent Claim
160 words
AN INVERTER COMPRISING IN COMBINATION FIRST AND SECOND TERMINALS FOR CONNECTION TO A D.C. SOURCE, A TRANSFORMER HAVING A SECONDARY WINDING IN WHICH THE REQUIRED A.C. OUPUT IS PRODUCED AND A PRIMARY WINDING, MEANS CONNECTING THE MID-POINT OF SAID PRIMARY WINDING TO THE FIRST TERMINAL, FIRST AND SECOND CONTROLLED RECTIFIERS THROUGH WHICH THE ENDS OF THE PRIMARY WINDING RESPECTIVELY ARE CONNECTED TO THE SECOND TERMINAL, A THIRD CONTROLLED RECTIFIER, A FOURTH CONTROLLED RECTIFIER AND AN INDUCTIVE LOAD CONNECTED IN SERIES BETWEEN SAID TERMINALS, A FIRST CAPACITOR CONNECTED TO THE SECOND TERMINAL THROUGH THE FIRST CONTROLLED RECTIFIER AND CONNECTED TO THE FIRST TERMINAL THROUGH THE FOURTH CONTROLLED RECTIFIER AND THE INDUCTIVE LOADS IN SERIES, A SECOND CAPACITOR CONNECTED TO THE SECOND TERMINAL THROUGH THE SECOND CONTROLLED RECTIFIER AND CONNECTED TO THE FIRST TERMINAL THROUGH THE FOURTH CONTROLLED RECTIFIER AND THE INDUCTIVE LOAD IN SERIES, AND MEANS FOR RENDERING THE FIRST, FOURTH, THIRD, SECOND, FOURTH, THIRD CONTROLLED RECTIFIERS CONDUCTIVE IN THAT ORDER.
References Cited (Backward Citations)
US3008068A
Cited
US3075136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |