Patent US3309623A successfully refreshed from Google Patents.
US3309623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-commutating and automatically controlled inverter
Assignee: BBC Brown Boveri AG Germany
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Filing: 1966-04-27
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Granted: 1967-03-14
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Expires: 1986-04-27
Abstract
No abstract record available.
Inventors
- 👤 Depenbrock Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:12
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/516
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A SELF-COMMUTATING AND AUTOMATICALLY CONTROLLED INVERTER COMPRISING A FULL-WAVE BRIDGE OF FOUR LEGS IN EACH OF WHICH IS INSERTED A CONTROLLABLE VALVE PARALLELED BY A NON-CONTROLLABLE VALVE CONNECTED IN BACK-TO-FRONT RELATION, A SOURCE OF UNIDIRECTIONAL VOLTAGE CONNECTED TO THE INPUT OF SAID BRIDGE, A LOAD ELEMENT CONNECTED TO THE OUTPUT OF SAID BRIDGE, A BASE LOAD CIRCUIT CONNECTED IN PARALLEL WITH SAID LOAD ELEMENT, SAID BASE LOAD CIRCUIT INCLUDING A CAPACITOR CONNECTED IN SERIES WITH THE PRIMARY COILS OF A MAGNETIC AMPLIFIER UNIT, A SOURCE OF UNIDIRECTIONAL VOLTAGE CONNECTED TO THE SECONDARY COILS OF SAID MAGNETIC AMPLIFIER UNIT, AND MEANS CONTROLLING THE CONDUCTION OF SAID CONTROLLABLE VALVES BY VOLTAGE IMPULSES WHOSE PHASE POSITION IS DERIVED FROM THE ZERO PASSAGE OF THE CAPACITOR VOLTAGE OF THE BASE LOAD.
Claim 2
Dependent Claim
127 words
A SELF-COMMUTATING AND AUTOMATICALLY CONTROLLED INVERTER COMPRISING A FULL-WAVE BRIDGE OF FOUR LEGS IN EACH OF WHICH IS INSERTED A CONTROLLABLE VALVE PARALLELED BY A NON-CONTROLLABLE VALVE CONNECTED IN BACK-TO-FRONT RELATION, A SOURCE OF UNIDIRECTIONAL VOLTAGE CONNECTED TO THE INPUT OF SAID BRIDGE, A LOAD ELEMENT CONNECTED TO THE OUTPUT OF SAID BRIDGE, A BASE LOAD CIRCUIT CONNECTED IN PARALLEL WITH SAID LOAD ELEMENT, SAID BASE LOAD CIRCUIT INCLUDING A CAPACITOR CONNECTED IN SERIES WITH THE PRIMARY COILS OF A MAGNETIC AMPLIFIER UNIT, A SOURCE OF UNIDIRECTIONAL VOLTAGE CONNECTED TO THE SECONDARY COILS OF SAID MAGNETIC AMPLIFIER UNIT, AND MEANS CONTROLLING THE CONDUCTION OF SAID CONTROLLABLE VALVES BY VOLTAGE IMPULSES WHOSE PHASE POSITION IS DERIVED FROM THE ZERO PASSAGE OF THE CAPACITOR VOLTAGE OF THE BASE LOAD.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |