Regulated series to multiple power converter
Abstract
Abstract A UNIT IS DESIGNED TO BE PLACED IN SERIES WITH A PLURALITY OF SERIES RUNWAY MARKER LIGHTS IN AN AIRPORT LIGHTNING SYSTEM, AND EMPLOYS A BIDIRECTIONAL THYRISTER RESPONSIVE TO LINE VOLTAGE OF A DETERMINABLE AMOUNT TO SHORT CIRCUIT THE UNIT IN EACH HALF-CYCLE OF THE ALTERNATING CURRENT POWER. THE UNIT INCLUDES CURRENT-RESPONSIVE POWER CONVERSION MEANS TO SUPPLY POWER SUITABLE FOR USE IN A FLASH LAMP. IN A SECOND EMBODIMENT, SILICON-CONTROLLED RECTIFIERS, ONE FOR EACH HALF-CYCLE OF THE AC POWER, ARE FIRED TO CAUSE SHORT CIRCUITING OF THE UNIT WHEN THE PREDETERMINED DESIRED MAXIMUM VOLTAGE IS REACHED. IN EACH EMBODIMENT, THE VOLTAGE-RESPONSIVE DEVICE INCLUDES A VOLTAGE DIVIDER ACROSS THE UNIT AND A BILATERAL AVALANCHE SWITCHING DEVICE.
Inventors
- 👤 Donald L Grafton
- 👤 George M Gifford
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |