Patent US3309593A successfully refreshed from Google Patents.
US3309593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing line starter
Assignee: Combustion Engineering Inc
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Filing: 1964-12-28
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Granted: 1967-03-14
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Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Robert W Egglestone
- 👤 Jr Algernon S Noell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:06
CPC Classifications
H; H02; H02P; H02P27/00; H02P27/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
AN ELECTRICAL REVERSING LINE STARTER OPERATIVE TO CONTROL THE APPLICATION OF A THREE-PHASE POWER SUPPLY TO A THREE-PHASE LOAD COMPRISING IN COMBINATION FIRST SWITCHING MEANS INTERCONNECTING ONE PHASE OF THE POWER SUPPLY WITH ONE PHASE OF THE LOAD, FOURTH SWITCHING MEANS INTERCONNECTING ANOTHER PHASE OF THE POWER SUPPLY WITH ANOTHER PHASE OF THE LOAD, SECOND AND THIRD SWITCHING MEANS INTERCONNECTING SAID OTHER AND SAID ONE PHASES OF THE POWER SUPPLY, RESPECTIVELY, WITH SAID ONE AND SAID OTHER PHASES OF THE LOAD, RESPECTIVELY, EACH OF SAID SWITCHING MEANS INCLUDING A RECTIFIER BRIDGE CONNECTED INTERMEDIATE THE RESPECTIVE PHASE OF THE POWER SUPPLY AND THE RESPECTIVE PHASE OF THE LOAD, A SILICON CONTROLLED RECTIFIER CONNECTED IN SAID BRIDGE IN A MANNER TO CONTROL THE PASSAGE OF CURRENT THROUGH THE BRIDGE FROM THE POWER SUPPLY TO THE LOAD, A CONTROL CIRCUIT FOR CONTROLLING THE GATING OF THE SILICON CONTROLLED RECTIFIERS AND INCLUDING FIRST, SECOND, THIRD AND FOURTH TRANSFORMERS THE PRIMARIES OF WHICH ARE CONNECTED RESPECTIVELY ACROSS THE RECTIFIER BRIDGE NETWORK
Claim 2
Dependent Claim
166 words
AN ELECTRICAL REVERSING LINE STARTER OPERATIVE TO CONTROL THE APPLICATION OF A THREE-PHASE POWER SUPPLY TO A THREE-PHASE LOAD COMPRISING IN COMBINATION FIRST SWITCHING MEANS INTERCONNECTING ONE PHASE OF THE POWER SUPPLY WITH ONE PHASE OF THE LOAD, FOURTH SWITCHING MEANS INTERCONNECTING ANOTHER PHASE OF THE POWER SUPPLY WITH ANOTHER PHASE OF THE LOAD, SECOND AND THIRD SWITCHING MEANS INTERCONNECTING SAID OTHER AND SAID ONE PHASES OF THE POWER SUPPLY, RESPECTIVELY, WITH SAID ONE AND SAID OTHER PHASES OF THE LOAD, RESPECTIVELY, EACH OF SAID SWITCHING MEANS INCLUDING A RECTIFIER BRIDGE CONNECTED INTERMEDIATE THE RESPECTIVE PHASE OF THE POWER SUPPLY AND THE RESPECTIVE PHASE OF THE LOAD, A SILICON CONTROLLED RECTIFIER CONNECTED IN SAID BRIDGE IN A MANNER TO CONTROL THE PASSAGE OF CURRENT THROUGH THE BRIDGE FROM THE POWER SUPPLY TO THE LOAD, A CONTROL CIRCUIT FOR CONTROLLING THE GATING OF THE SILICON CONTROLLED RECTIFIERS AND INCLUDING FIRST, SECOND, THIRD AND FOURTH TRANSFORMERS THE PRIMARIES OF WHICH ARE CONNECTED RESPECTIVELY ACROSS THE RECTIFIER BRIDGE NETWORK
References Cited (Backward Citations)
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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 |