Patent US3200328A successfully refreshed from Google Patents.
US3200328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current supply apparatus
Assignee: North Electric Co
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Filing: 1962-01-30
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Granted: 1965-08-10
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Expires: 1982-01-30
Abstract
No abstract record available.
Inventors
- 👤 Lowell J Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:32
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/34; G05F1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN COMBINATION, A SATURABLE REACTOR HAVING AN IMPEDANCE WINDING AND A CONTROL WINDING TO WHICH CURRENT MAY BE SUPPLIED TO CONTROL THE IMPEDANCE OF SAID IMPEDANCE WINDING, A FIRST AND A SECOND TRANSISTOR EACH HAVING A PLURALITY OF ELECTRODES COMPRISING AN EMMITTER, A COLLECTOR AND A BASE, A FIRST AND A SECOND RESISTOR, A FIRST CURRENT PATH COMPRISING A SERIES THE EMMITTER-COLLECTOR PATH OF SAID FIRST TRANSISTOR AND SAID FIRST RESISTOR, A SECOND CURRENT PATH IN PARALLEL WITH SAID FIRST CURRENT PATH COMPRISING IN SERIES THE EMITTER-COLLECTOR PATH OF SAID SECOND TRANSISTOR AND SAID SECOND RESISTOR, EACH OF SAID PARALLEL CURRENT PATH HAVING A TERMINAL INTERMEDIATE ITS END TERMINALS MEANS FOR CONNECTING THE TERMINALS OF SAID CONTROL WINDING TO SAID INTERMEDIATE TERMINALS RESPECTIVELY, MEANS FOR CONNECTING SAID PARALLEL CURRENT PATH TO A SOURCE OF DIRECT CURRENT, MEANS FOR CONTROLLING THE EMITTER-BASE CURRENT OF SAID FIRST TRANSISTOR TO THEREBY CONTROL ITS EMITTER-COLLECTOR CURRENT, AND MEANS RESPONSIVE TO THE EMITTER-COLLECTOR CURRENT OF SAID FIRST TRANSISTOR TO CONTROL THE EMITTER-BASE CURRENT OF SAID SECOND TRANSISTOR AND THEREBY CONTROLD THE EMITTER-COLLECTOR CURRENT OF SAID SECOND TRANSISTOR.
Claim 2
Dependent Claim
182 words
IN COMBINATION, A SATURABLE REACTOR HAVING AN IMPEDANCE WINDING AND A CONTROL WINDING TO WHICH CURRENT MAY BE SUPPLIED TO CONTROL THE IMPEDANCE OF SAID IMPEDANCE WINDING, A FIRST AND A SECOND TRANSISTOR EACH HAVING A PLURALITY OF ELECTRODES COMPRISING AN EMMITTER, A COLLECTOR AND A BASE, A FIRST AND A SECOND RESISTOR, A FIRST CURRENT PATH COMPRISING A SERIES THE EMMITTER-COLLECTOR PATH OF SAID FIRST TRANSISTOR AND SAID FIRST RESISTOR, A SECOND CURRENT PATH IN PARALLEL WITH SAID FIRST CURRENT PATH COMPRISING IN SERIES THE EMITTER-COLLECTOR PATH OF SAID SECOND TRANSISTOR AND SAID SECOND RESISTOR, EACH OF SAID PARALLEL CURRENT PATH HAVING A TERMINAL INTERMEDIATE ITS END TERMINALS MEANS FOR CONNECTING THE TERMINALS OF SAID CONTROL WINDING TO SAID INTERMEDIATE TERMINALS RESPECTIVELY, MEANS FOR CONNECTING SAID PARALLEL CURRENT PATH TO A SOURCE OF DIRECT CURRENT, MEANS FOR CONTROLLING THE EMITTER-BASE CURRENT OF SAID FIRST TRANSISTOR TO THEREBY CONTROL ITS EMITTER-COLLECTOR CURRENT, AND MEANS RESPONSIVE TO THE EMITTER-COLLECTOR CURRENT OF SAID FIRST TRANSISTOR TO CONTROL THE EMITTER-BASE CURRENT OF SAID SECOND TRANSISTOR AND THEREBY CONTROLD THE EMITTER-COLLECTOR CURRENT OF SAID SECOND TRANSISTOR.
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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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |