Patent US3233148A successfully refreshed from Google Patents.
US3233148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge lamp ballasting circuit
Assignee: General Electric Co
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Filing: 1961-04-25
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Granted: 1966-02-01
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 William H Lake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:02
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/20; H05B41/23; H05B41/232
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN OPERATING AND BALLASTING CIRCUIT FOR AN ELECTRIC DISCHARGE DEVICE COMPRISING A RECTIFIER-CAPACITOR BRIDGE HAVING A PAIR OF BRANCHES EACH INCLUDING A RECTIFIER AND A CAPACITOR CONNECTED IN SERIES BETWEEN ALTERNATING CURRENT INPUT TERMINALS, THE RECTIFIERS BEING POLED FOR CONDUCTION IN OPPOSITE DIRECTIONS IN THE TWO BRANCHES, AND A UTILIZATION CIRCUIT MEANS INCLUDING AN ELECTRIC DISCHARGE DEVICE HAVING A NEGATIVE IMPEDANCE CHARACTERISTIC CONNECTED ACROSS THE JUNCTION POINTS OF THE RECTIFIER AND CAPACITOR IN EACH BRANCH, SAID UTILIZATION CIRCUIT MEANS HAVING AN IMPEDANCE PROPORTIONED TO ACHIEVE SUBSTANTIAL TRANSFER OF ENERGY TO SAID DISCHARGE DEVICE THROUGH THE CHARGING OF SAID CAPACITORS AS WELL AS THROUGH THE DISCHARGING THEREOF.
Claim 2
Dependent Claim
106 words
AN OPERATING AND BALLASTING CIRCUIT FOR AN ELECTRIC DISCHARGE DEVICE COMPRISING A RECTIFIER-CAPACITOR BRIDGE HAVING A PAIR OF BRANCHES EACH INCLUDING A RECTIFIER AND A CAPACITOR CONNECTED IN SERIES BETWEEN ALTERNATING CURRENT INPUT TERMINALS, THE RECTIFIERS BEING POLED FOR CONDUCTION IN OPPOSITE DIRECTIONS IN THE TWO BRANCHES, AND A UTILIZATION CIRCUIT MEANS INCLUDING AN ELECTRIC DISCHARGE DEVICE HAVING A NEGATIVE IMPEDANCE CHARACTERISTIC CONNECTED ACROSS THE JUNCTION POINTS OF THE RECTIFIER AND CAPACITOR IN EACH BRANCH, SAID UTILIZATION CIRCUIT MEANS HAVING AN IMPEDANCE PROPORTIONED TO ACHIEVE SUBSTANTIAL TRANSFER OF ENERGY TO SAID DISCHARGE DEVICE THROUGH THE CHARGING OF SAID CAPACITORS AS WELL AS THROUGH THE DISCHARGING THEREOF.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |