Patent US3270273A successfully refreshed from Google Patents.
US3270273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible current supply
Assignee: TA ACQUISITION CORP
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Filing: 1962-05-21
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Granted: 1966-08-30
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 John K Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:28
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/145; H02M7/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
AN BILATERAL SWITCHING CIRCUIT COMPRISING A PAIR OF CONTROLLED RECTIFIERS EACH HAVING AN ANODE, CATHODE, AND CONTROL ELECTRODE AND EACH BEING CAPABLE OF BEING SWITCHED BETWEEN A HIGH AND LOW IMPEDANCE STATE, MEANS JOINING SAID CATHODE ELECTRODES TOGETHER, AN ASYMMETRICALLY CONDUCTING DEVICE CONNECTED TO BYPASS OPPOSITELY DIRECTED CURRENT ABOUT EACH OF SAID CONTROLLED RECTIFIERS, MEANS CONNECTING EACH OF SAID ASYMMETRICALLY CONDUCTING DEVICES INDIVIDUALLY TO THE ANODE AND CATHODE ELECTRODE OF A DIFFERENT ONE OF SAID CONTROLLED RECTIFIERS A FIRST SERIES CIRCUIT COMPRISING A LOAD AND A LOW-PASS FILTER, A SOURCE OF ALTERNATING POTENTIAL, MEANS CONNECTING SAID SOURCE AND SAID FIRST SERIES CIRCUIT IN SERIES TO FORM A SECOND SERIES CIRCUIT, MEANS CONNECTING SAID SECOND SERIES CIRCUIT BETWEEN THE ANODE ELECTRODES OF SAID CONTROLLED RECTIFIERS, AND MEANS CONNECTED TO THE CONTROL ELECTRODES OF EACH OF SAID CONTROLLED RECTIFIERS AND ADAPTED TO CONTROL CONDUCTION OF SAID CONTROLLED RECTIFIERS.
Claim 2
Dependent Claim
146 words
AN BILATERAL SWITCHING CIRCUIT COMPRISING A PAIR OF CONTROLLED RECTIFIERS EACH HAVING AN ANODE, CATHODE, AND CONTROL ELECTRODE AND EACH BEING CAPABLE OF BEING SWITCHED BETWEEN A HIGH AND LOW IMPEDANCE STATE, MEANS JOINING SAID CATHODE ELECTRODES TOGETHER, AN ASYMMETRICALLY CONDUCTING DEVICE CONNECTED TO BYPASS OPPOSITELY DIRECTED CURRENT ABOUT EACH OF SAID CONTROLLED RECTIFIERS, MEANS CONNECTING EACH OF SAID ASYMMETRICALLY CONDUCTING DEVICES INDIVIDUALLY TO THE ANODE AND CATHODE ELECTRODE OF A DIFFERENT ONE OF SAID CONTROLLED RECTIFIERS A FIRST SERIES CIRCUIT COMPRISING A LOAD AND A LOW-PASS FILTER, A SOURCE OF ALTERNATING POTENTIAL, MEANS CONNECTING SAID SOURCE AND SAID FIRST SERIES CIRCUIT IN SERIES TO FORM A SECOND SERIES CIRCUIT, MEANS CONNECTING SAID SECOND SERIES CIRCUIT BETWEEN THE ANODE ELECTRODES OF SAID CONTROLLED RECTIFIERS, AND MEANS CONNECTED TO THE CONTROL ELECTRODES OF EACH OF SAID CONTROLLED RECTIFIERS AND ADAPTED TO CONTROL CONDUCTION OF SAID CONTROLLED RECTIFIERS.
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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |