US3085190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static inverter
Assignee: Lockheed Martin Corp
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Filing: 1960-07-18
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Granted: 1963-04-09
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Expires: 1980-07-18
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Kearns
- 👤 Joseph J Rolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:53
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/525
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
364 words
A STATIC INVERTER FOR CONVERTING DIRECT-CURRENT POWER TO ALTERNATING-CURRENT POWER COMPRISING IN COMBINATION: A D.-C. POWER SUPPLY, AN OUTPUT CIRCUIT INCLUDING A TRANSFORMER, MEANS INCLUDING A FIRST CONTROLLED RECTIFIER FOR APPLYING ONE POLARITY OF THE VOLTAGE OF SAID D.-C. POWER SUPPLY TO SAID OUTPUT CIRCUIT IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A FIRST PREDETERMINED TIME IN EACH CYCLE OF OPERATION, A TURN-OFF CAPACITOR, MEANS INCLUDING A SECOND CONTROLLED RECTIFIER FOR CHARGING SAID TURN-OFF CAPACITOR TO A TURN-OFF VOLTAGE SUBSTANTIALLY IN EXCESS OF THE VOLTAGE OF SAID D.-C. POWER SUPPLY IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL SUBSTANTIALLY AT SAID FIRST PREDETERMINED TIME, MEANS INCLUDING A THIRD CONTROLLED RECTIFIER COOPERATING WITH SAID TURN-OFF CAPACITOR FOR APPLYING THE VOLTAGE TO WHICH SAID TURN-OFF CAPACITOR IS CHARGED TO TURN "OFF" SAID FIRST RECTIFIER IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A SECOND PREDETERMINED TIME IN SAID CYCLE AFTER SAID FIRST PREDETERMINED TIME, SAID LAST MENTIONED MEANS ALSO COOPERATING WITH SAID OUTPUT CIRCUIT TO DISCHARGE THE VOLTAGE ON SAID TURN-OFF CAPACITOR INTO SAID LOAD CIRCUIT, MEANS INCLUDING A FOURTH CONTROLLED RECTIFIER FOR APPLYING THE VOLTAGE OF SAID D.-C. POWER SUPPLY TO SAID OUTPUT CIRCUIT IN THE OPPOSITE POLARITY IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A THIRD PREDETERMINED TIME IN SAID CYCLE AFTER SAID FIRST PREDETERMINED TIME, MEANS INCLUDING A FIFTH CONTROLLED RECTIFIER FOR CHARGING SAID TURN-OFF CAPACITOR TO A TURN-OFF VOLTAGE SUBSTANTIALLY IN EXCESS OF THE VOLTAGE OF SAID D.-C. POWER SUPPLY IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL SUBSTANTIALLY AT SAID THIRD PREDETERMINED TIME, MEANS INCLUDING A SIXTH CONTROLLED RECTIFIER COOPERATING WITH SAID TURN-OFF CAPACITOR FOR APPLYING THE VOLTAGE TO WHICH SAID TURN-OFF CAPACITOR IS CHARGED TO TURN "OFF" SAID FOURTH RECTIFIER IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A FOURTH PREDETERMINED TIME IN SAID CYCLE AFTER SAID THIRD PREDETERMINED TIME, SAID LAST MENTIONED MEANS ALSO COOPERATING WITH SAID OUTPUT CIRCUIT TO DISCHARGE THE VOLTAGE ON SAID TURN-OFF CAPACITOR INTO SAID LOAD CIRCUIT, AND MEANS FOR APPLYING SAID FIRING SIGNALS TO SAID RECTIFIERS AT SAID PREDETERMINED TIME SO THAT SAID CYCLE OF OPERATION REPEATS PERIODICALLY AT A PREDETERMINED RATE.
Claim 2
Dependent Claim
364 words
A STATIC INVERTER FOR CONVERTING DIRECT-CURRENT POWER TO ALTERNATING-CURRENT POWER COMPRISING IN COMBINATION: A D.-C. POWER SUPPLY, AN OUTPUT CIRCUIT INCLUDING A TRANSFORMER, MEANS INCLUDING A FIRST CONTROLLED RECTIFIER FOR APPLYING ONE POLARITY OF THE VOLTAGE OF SAID D.-C. POWER SUPPLY TO SAID OUTPUT CIRCUIT IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A FIRST PREDETERMINED TIME IN EACH CYCLE OF OPERATION, A TURN-OFF CAPACITOR, MEANS INCLUDING A SECOND CONTROLLED RECTIFIER FOR CHARGING SAID TURN-OFF CAPACITOR TO A TURN-OFF VOLTAGE SUBSTANTIALLY IN EXCESS OF THE VOLTAGE OF SAID D.-C. POWER SUPPLY IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL SUBSTANTIALLY AT SAID FIRST PREDETERMINED TIME, MEANS INCLUDING A THIRD CONTROLLED RECTIFIER COOPERATING WITH SAID TURN-OFF CAPACITOR FOR APPLYING THE VOLTAGE TO WHICH SAID TURN-OFF CAPACITOR IS CHARGED TO TURN "OFF" SAID FIRST RECTIFIER IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A SECOND PREDETERMINED TIME IN SAID CYCLE AFTER SAID FIRST PREDETERMINED TIME, SAID LAST MENTIONED MEANS ALSO COOPERATING WITH SAID OUTPUT CIRCUIT TO DISCHARGE THE VOLTAGE ON SAID TURN-OFF CAPACITOR INTO SAID LOAD CIRCUIT, MEANS INCLUDING A FOURTH CONTROLLED RECTIFIER FOR APPLYING THE VOLTAGE OF SAID D.-C. POWER SUPPLY TO SAID OUTPUT CIRCUIT IN THE OPPOSITE POLARITY IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A THIRD PREDETERMINED TIME IN SAID CYCLE AFTER SAID FIRST PREDETERMINED TIME, MEANS INCLUDING A FIFTH CONTROLLED RECTIFIER FOR CHARGING SAID TURN-OFF CAPACITOR TO A TURN-OFF VOLTAGE SUBSTANTIALLY IN EXCESS OF THE VOLTAGE OF SAID D.-C. POWER SUPPLY IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL SUBSTANTIALLY AT SAID THIRD PREDETERMINED TIME, MEANS INCLUDING A SIXTH CONTROLLED RECTIFIER COOPERATING WITH SAID TURN-OFF CAPACITOR FOR APPLYING THE VOLTAGE TO WHICH SAID TURN-OFF CAPACITOR IS CHARGED TO TURN "OFF" SAID FOURTH RECTIFIER IN RESPONSE TO THE RECEIPT OF A FIRING SIGNAL AT A FOURTH PREDETERMINED TIME IN SAID CYCLE AFTER SAID THIRD PREDETERMINED TIME, SAID LAST MENTIONED MEANS ALSO COOPERATING WITH SAID OUTPUT CIRCUIT TO DISCHARGE THE VOLTAGE ON SAID TURN-OFF CAPACITOR INTO SAID LOAD CIRCUIT, AND MEANS FOR APPLYING SAID FIRING SIGNALS TO SAID RECTIFIERS AT SAID PREDETERMINED TIME SO THAT SAID CYCLE OF OPERATION REPEATS PERIODICALLY AT A PREDETERMINED RATE.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |