US3320519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicon control switch-saturable transformer current limit protective circuit
Assignee: General Electric Co
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Filing: 1964-04-13
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Granted: 1967-05-16
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:06
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/08; H03K17/082; H03K17/0824; H02; H02H; H02H9/00; H02H9/02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/125; H02M3/135; H02M3/137; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/525; H02M7/527
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A CURRENT SWITCH INCLUDING IN COMBINATION A SILICON CONTROLLED SWITCH HAVING TWO LOAD TERMINALS, A TURN-ON GATE AND A HOLD-ON GATE, TRANSFORMER MEANS HAVING AT LEAST INDUCTIVELY COUPLED PRIMARY AND SECONDARY WINDINGS, THE PRIMARY WINDING BEING CONNECTED IN SERIES CIRCUIT RELATIONSHIP WITH THE LOAD TERMINALS OF THE SILICON CONTROLLED SWITCH WITH THE SERIES CIRCUIT THUS COMPRISED BEING ADAPTED TO BE CONNECTED ACROSS A SOURCE OF ELECTRIC POTENTIAL, AND THE SECONDARY WINDING OF THE TRANSFORMER MEANS
Claim 2
Dependent Claim
75 words
A CURRENT SWITCH INCLUDING IN COMBINATION A SILICON CONTROLLED SWITCH HAVING TWO LOAD TERMINALS, A TURN-ON GATE AND A HOLD-ON GATE, TRANSFORMER MEANS HAVING AT LEAST INDUCTIVELY COUPLED PRIMARY AND SECONDARY WINDINGS, THE PRIMARY WINDING BEING CONNECTED IN SERIES CIRCUIT RELATIONSHIP WITH THE LOAD TERMINALS OF THE SILICON CONTROLLED SWITCH WITH THE SERIES CIRCUIT THUS COMPRISED BEING ADAPTED TO BE CONNECTED ACROSS A SOURCE OF ELECTRIC POTENTIAL, AND THE SECONDARY WINDING OF THE TRANSFORMER MEANS
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |