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US3299279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turn-off circuitry for silicon controlled rectifier and other thyratron-like devices
Assignee: Individual
•
Filing: 1962-12-31
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Granted: 1967-01-17
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Edward T Moore
- 👤 Thomas G Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:02
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN AN ELECTRICAL SYSTEM, A CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE HAVING A CONTROL GATE ELECTRODE; A SOURCE OF VOLTAGE; A TRIGGERING SOURCE FOR SAID GATING ELECTRODE OPERATIVE TO RENDER SAID DEVICE CONDUCTING; A LOAD CIRCUIT ENERGIZED WHEN SAID DEVICE IS CONDUCTING; MAGNETIC CORE MEANS ESTABLISHING FIRST AND SECOND MAGNETIC PATHS OF PREDETERMINED HYSTERESIS-LOOP CHARACTERISTICS; FIRST WINDING MEANS ENERGIZED BY SAID VOLTAGE SOURCE WHEN SAID DEVICE IS CONDUCTING AND OPERATIVE TO APPLY MAGNETO-MOTIVE FORCES OF PREDETERMINED VALUES TO EACH OF SAID PATHS WHEREBY TO EFFECT A FLUX CHANGE PREDOMINANTLY IN THE FIRST PATH FOLLOWED BY A FLUX CHANGE IN THE SAME DIRECTION PREDOMINANTLY IN THE SECOND PATH; SECOND
Claim 2
Dependent Claim
106 words
IN AN ELECTRICAL SYSTEM, A CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE HAVING A CONTROL GATE ELECTRODE; A SOURCE OF VOLTAGE; A TRIGGERING SOURCE FOR SAID GATING ELECTRODE OPERATIVE TO RENDER SAID DEVICE CONDUCTING; A LOAD CIRCUIT ENERGIZED WHEN SAID DEVICE IS CONDUCTING; MAGNETIC CORE MEANS ESTABLISHING FIRST AND SECOND MAGNETIC PATHS OF PREDETERMINED HYSTERESIS-LOOP CHARACTERISTICS; FIRST WINDING MEANS ENERGIZED BY SAID VOLTAGE SOURCE WHEN SAID DEVICE IS CONDUCTING AND OPERATIVE TO APPLY MAGNETO-MOTIVE FORCES OF PREDETERMINED VALUES TO EACH OF SAID PATHS WHEREBY TO EFFECT A FLUX CHANGE PREDOMINANTLY IN THE FIRST PATH FOLLOWED BY A FLUX CHANGE IN THE SAME DIRECTION PREDOMINANTLY IN THE SECOND PATH; SECOND
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |