Patent US3792235A successfully refreshed from Google Patents.
US3182249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impedance controlled reactor device
Assignee: AEROSPACE PRODUCTS RES CORP
•
Filing: 1961-12-01
•
Granted: 1965-05-04
•
Expires: 1981-12-01
Abstract
No abstract record available.
Inventors
- 👤 Marcel A Pahlavan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:34
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/24; G05F1/26; G05F1/30; H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A CONTROL CIRCUIT COMPRISING A SATURABLE TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, MEANS FOR APPLYING CURRENT TO SAID PRIMARY WINDING, A LOAD, MEANS COUPLING SAID LOAD TO SAID PRIMARY WINDING TO DERIVE ENERGY, AND MEANS FOR CONTROLLING THE IMPEDANCE OF SAID PRIMARY WINDING INCLUDING A FIRST AND SECOND TRANSISTOR, EACH HAVING A COLLECTOR, EMITTER, AND BASE ELECTRODE, MEANS CONNECTING THE CONNECTOR ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS TO ONE END OF SAID SECONDARY WINDING, MEANS CONNECTING THE EMITTER OF SAID FIRST TRANSISTOR TO THE OTHER END OF SAID SECONDARY WINDING, MEANS CONNECTING THE BASE OF SAID FRST TRANSISTOR TO THE EMITTER OF THE SECOND TRANSISTOR, AND MEANS INCLUDING AN IMPEDANCE TO APPLY A CONTROL SIGNAL BETWEEN THE BASE ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS TO CONTROL THE CONDUCTIVE CONDITION OF SAID FIRST AND SECOND TRANSISTORS.
Claim 2
Dependent Claim
140 words
A CONTROL CIRCUIT COMPRISING A SATURABLE TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, MEANS FOR APPLYING CURRENT TO SAID PRIMARY WINDING, A LOAD, MEANS COUPLING SAID LOAD TO SAID PRIMARY WINDING TO DERIVE ENERGY, AND MEANS FOR CONTROLLING THE IMPEDANCE OF SAID PRIMARY WINDING INCLUDING A FIRST AND SECOND TRANSISTOR, EACH HAVING A COLLECTOR, EMITTER, AND BASE ELECTRODE, MEANS CONNECTING THE CONNECTOR ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS TO ONE END OF SAID SECONDARY WINDING, MEANS CONNECTING THE EMITTER OF SAID FIRST TRANSISTOR TO THE OTHER END OF SAID SECONDARY WINDING, MEANS CONNECTING THE BASE OF SAID FRST TRANSISTOR TO THE EMITTER OF THE SECOND TRANSISTOR, AND MEANS INCLUDING AN IMPEDANCE TO APPLY A CONTROL SIGNAL BETWEEN THE BASE ELECTRODES OF SAID FIRST AND SECOND TRANSISTORS TO CONTROL THE CONDUCTIVE CONDITION OF SAID FIRST AND SECOND TRANSISTORS.
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) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |