Patent US3230440A successfully refreshed from Google Patents.
US3230440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply with short circuit protection
Assignee: North American Aviation Corp
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Filing: 1962-04-02
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Granted: 1966-01-18
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Charles T Kleiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:35
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/125; H02H7/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
A CIRCUIT FOR DISABLING A POWER SUPPLY ON THE OCCURRENCE OF A SHORT CIRCUIT COMPRISING IN COMBINATION: A SATURABLE-CORE REACTOR HAVING A LOAD WINDING, A COMPENSATING WINDING, AND AN OUTPUT WINDING; A D.C. POWER SUPPLY; AN A.C. POWER SUPPLY; A LOAD, SAID LOAD AND SAID LOAD WINDING FORMING A SERIES D.C. CURRENT PATH WITH SAID D.C. POWER SUPPLY; GATING MEANS INTERPOSED IN THE SERIES PATH OF SAID LOAD FOR ELECTRICALLY DISCONNECTING SAID D.C. POWER SOURCE FROM SAID LOAD; COMPENSATING MEANS FORMING A SERIES D.C. CURRENT PATH WITH SAID COMPENSATING WINDING AND ALSO FORMING A PARALLEL D.C. CURRENT PATH WITH SAID LOAD WINDING SO AS TO NORMALLY ESTABLISH A DE-SATURATED CONDITION IN SAID SATURABLE-CORE REACTOR; AN OUTPUT WINDING LOAD MEANS, SAID LOAD MEANS AND SAID OUTPUT WINDING FORMING A SERIES A.C. CURRENT PATH WITH SAID A.C. POWER SUPPLY, SUCH THAT AN INCREASE IN SAID D.C. LOAD CURRENT TENDS TO SATURATE SAID SATURABLE-CORE REACTOR, DECREASING THE FLOW OF COMPENSATING CURRENT AND INCREASING THE FLOW OF A.C. CURRENT THROUGH SAID OUTPUT WINDING SERIES CURRENT PATH; MEANS, ENERGIZED BY THE INCREASED A.C. CURRENT FLOW THROUGH SAID OUTPUT WINDING PROVIDING A TEMPORARY ACTUATING SIGNAL; AND CONTROL MEANS RESPONSIVE TO SAID TEMPORARY ACTUATING SIGNAL PROVIDING A GATING SIGNAL TO SAID GATING MEANS SO AS TO EFFECTIVELY DISCONNECT SAID D.C. POWER SUPPLY FROM SAID LOAD.
Claim 2
Dependent Claim
218 words
A CIRCUIT FOR DISABLING A POWER SUPPLY ON THE OCCURRENCE OF A SHORT CIRCUIT COMPRISING IN COMBINATION: A SATURABLE-CORE REACTOR HAVING A LOAD WINDING, A COMPENSATING WINDING, AND AN OUTPUT WINDING; A D.C. POWER SUPPLY; AN A.C. POWER SUPPLY; A LOAD, SAID LOAD AND SAID LOAD WINDING FORMING A SERIES D.C. CURRENT PATH WITH SAID D.C. POWER SUPPLY; GATING MEANS INTERPOSED IN THE SERIES PATH OF SAID LOAD FOR ELECTRICALLY DISCONNECTING SAID D.C. POWER SOURCE FROM SAID LOAD; COMPENSATING MEANS FORMING A SERIES D.C. CURRENT PATH WITH SAID COMPENSATING WINDING AND ALSO FORMING A PARALLEL D.C. CURRENT PATH WITH SAID LOAD WINDING SO AS TO NORMALLY ESTABLISH A DE-SATURATED CONDITION IN SAID SATURABLE-CORE REACTOR; AN OUTPUT WINDING LOAD MEANS, SAID LOAD MEANS AND SAID OUTPUT WINDING FORMING A SERIES A.C. CURRENT PATH WITH SAID A.C. POWER SUPPLY, SUCH THAT AN INCREASE IN SAID D.C. LOAD CURRENT TENDS TO SATURATE SAID SATURABLE-CORE REACTOR, DECREASING THE FLOW OF COMPENSATING CURRENT AND INCREASING THE FLOW OF A.C. CURRENT THROUGH SAID OUTPUT WINDING SERIES CURRENT PATH; MEANS, ENERGIZED BY THE INCREASED A.C. CURRENT FLOW THROUGH SAID OUTPUT WINDING PROVIDING A TEMPORARY ACTUATING SIGNAL; AND CONTROL MEANS RESPONSIVE TO SAID TEMPORARY ACTUATING SIGNAL PROVIDING A GATING SIGNAL TO SAID GATING MEANS SO AS TO EFFECTIVELY DISCONNECT SAID D.C. POWER SUPPLY FROM SAID LOAD.
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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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |