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Patent US3247447A successfully refreshed from Google Patents.
US3247447A
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Fast action current limiting protective circuit for phase shift control devices
Assignee: General Electric Co
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Filing: 1962-10-23
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Granted: 1966-04-19
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Expires: 1982-10-23
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Flairty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:19
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/122; H02H7/1227; H02M; H02M1/00; H02M1/08; H02M1/32; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/521; H02M7/525; H02M7/527
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A FAST ACTION PROTECTIVE CIRCUIT FOR A PHASE SHIFTING CONTROL FOR CONTROLLING THE OUTPUT FROM AN ELECTRIC CIRCUIT INCLUDING IN COMBINATION FIRST CONTROL SIGNAL INPUT MEANS OPERATIVELY COUPLED TO AND CONTROLLING THE DEGREE OF PHASE SHIFT INTRODUCED BY THE PHASE SHIFTING CONTROL OVER A DESIRED RANGE OVERLOAD CONDITION SENSING MEANS CONNECTED IN THE OUTPUT OF THE ELECTRIC CIRCUIT TO BE PROTECTED, AND FAST-ACTING SWITCH MEANS OPERATIVELY CONNECTED ACROSS THE PHASE SHIFTING CONTROL IN PARALLEL CIRCUIT RELATIONSHIP AND ACTUATED BY SAID OVERLOAD CONDITION SENSING MEANS FOR SHORT CIRCUITING THE PHASE SHIFTING CONTROL IN RESPONSE TO AN OVERLOAD CONDITION BEING SENSED.
Claim 2
Dependent Claim
99 words
A FAST ACTION PROTECTIVE CIRCUIT FOR A PHASE SHIFTING CONTROL FOR CONTROLLING THE OUTPUT FROM AN ELECTRIC CIRCUIT INCLUDING IN COMBINATION FIRST CONTROL SIGNAL INPUT MEANS OPERATIVELY COUPLED TO AND CONTROLLING THE DEGREE OF PHASE SHIFT INTRODUCED BY THE PHASE SHIFTING CONTROL OVER A DESIRED RANGE OVERLOAD CONDITION SENSING MEANS CONNECTED IN THE OUTPUT OF THE ELECTRIC CIRCUIT TO BE PROTECTED, AND FAST-ACTING SWITCH MEANS OPERATIVELY CONNECTED ACROSS THE PHASE SHIFTING CONTROL IN PARALLEL CIRCUIT RELATIONSHIP AND ACTUATED BY SAID OVERLOAD CONDITION SENSING MEANS FOR SHORT CIRCUITING THE PHASE SHIFTING CONTROL IN RESPONSE TO AN OVERLOAD CONDITION BEING SENSED.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |