US3124740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stage
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:51
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/505; H02M7/515; H02M7/516; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44; G05F1/45; H02M7/525
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A SYSTEM FOR CONVERTING D.C. POWER FROM A SOURCE TO A.C. POWER COMPRISING MEANS ADAPTED TO BE COUPLED TO THE SOURCE FOR GENERATING AN A.C. VOLTAGE IN RESPONSE TO THE APPLICATION THERETO OF A D.C. VOLTAGE DERIVED FROM THE SOURCE, POWER SWITCHING MEANS RESPONSIVE TO THE APPLICATION THERETO OF SAID A.C. VOLTAGE AND SAID D.C. POWER FOR PRODUCING AN A.C. POWER OUTPUT HAVING THE FREQUENCY OF SAID A.C. VOLTAGE, A REFERENCE VOLTAGE, COMPARING MEANS IN CIRCUIT WITH SAID REFERENCE VOLTAGE AND RESPONSIVE TO THE APPLICATION THERETO OF THE VOLTAGE OF SAID A.C. POWER OUTPUT FOR PRODUCING AN ERROR VOLTAGE INDICATIVE OF A DEVIATION OF SAID LAST-NAMED VOLTAGE FROM SAID REFERENCE VOLTAGE, AND MEANS FOR MODULATING SAID A.C. POWER OUTPUT WITH SAID ERROR VOLTAGE TO REGULATE THE VOLTAGE OF SAID A.C. POWER OUTPUT.
Claim 2
Independent Claim
132 words
A SYSTEM FOR CONVERTING D.C. POWER FROM A SOURCE TO A.C. POWER COMPRISING MEANS ADAPTED TO BE COUPLED TO THE SOURCE FOR GENERATING AN A.C. VOLTAGE IN RESPONSE TO THE APPLICATION THERETO OF A D.C. VOLTAGE DERIVED FROM THE SOURCE, POWER SWITCHING MEANS RESPONSIVE TO THE APPLICATION THERETO OF SAID A.C. VOLTAGE AND SAID D.C. POWER FOR PRODUCING AN A.C. POWER OUTPUT HAVING THE FREQUENCY OF SAID A.C. VOLTAGE, A REFERENCE VOLTAGE, COMPARING MEANS IN CIRCUIT WITH SAID REFERENCE VOLTAGE AND RESPONSIVE TO THE APPLICATION THERETO OF THE VOLTAGE OF SAID A.C. POWER OUTPUT FOR PRODUCING AN ERROR VOLTAGE INDICATIVE OF A DEVIATION OF SAID LAST-NAMED VOLTAGE FROM SAID REFERENCE VOLTAGE, AND MEANS FOR MODULATING SAID A.C. POWER OUTPUT WITH SAID ERROR VOLTAGE TO REGULATE THE VOLTAGE OF SAID A.C. POWER OUTPUT.
References Cited (Backward Citations)
US2505620A
Cited
US3027508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |