US3235769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starting circuit for discharge lamps
Assignee: General Electric Co
•
Filing: 1962-12-27
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Granted: 1966-02-15
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Hans L Wattenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:37
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/02; H05B41/04; Y; Y10; Y10S; Y10S315/00; Y10S315/02; Y10S315/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
AN OPERATING AND STARTING CIRCUIT FOR AN ELECTRIC DISCHARGE LAMP COMPRISING BALLASTING MEANS HAVING INPUT TERMINALS FOR CONNECTION TO AN ALTERNATING VOLTAGE SOURCE AND OUTPUT TERMINALS AT WHICH A REGULATED CURRENT IS SUPPLIED, LAMP TERMINALS FOR CONNECTION TO SAID ELECTRIC DISCHARGE LAMP, A PULSE TRANSFORMER HAVING PRIMARY AND SECONDARY WINDINGS, PULSE SWITCHING MEANS, AND A PAIR OF CAPACITORS, ONE OF SAID CAPACITORS BEING CONNECTED ACROSS SAID OUTPUT TERMINALS TO FORM A CHARGING CIRCUIT, THE PRIMARY OF SAID TRANSFORMER, SAID PULSE SWITCHING MEANS, AND THE OTHER OF SAID CAPACITORS BEING CONNECTED IN SERIES ACROSS SAID OUTPUT TERMINALS TO FORM A DISCHARGING CIRCUIT, AND THE SECONDARY OF SAID TRANSFORMER AND SAID LAMP TERMINALS BEING CONNECTED IN SERIES ACROSS SAID OUTPUT TERMINALS TO FORM AN OPERATING CIRCUIT, SAID PULSE SWITCHING MEANS BEING SWITCHED ON CYCLICALLY BY THE ALTERNATING VOLTAGE APPLIED THERETO AND OPERATING THEREUPON TO DISCHARGE SAID ONE CAPACITOR INTO THE OTHER THROUGH THE PRIMARY OF SAID PULSE TRANSFORMER IN ORDER TO INDUCE A HIGH VOLTAGE PULSE IN THE SECONDARY OF SAID PULSE TRANSFORMER.
Claim 2
Dependent Claim
171 words
AN OPERATING AND STARTING CIRCUIT FOR AN ELECTRIC DISCHARGE LAMP COMPRISING BALLASTING MEANS HAVING INPUT TERMINALS FOR CONNECTION TO AN ALTERNATING VOLTAGE SOURCE AND OUTPUT TERMINALS AT WHICH A REGULATED CURRENT IS SUPPLIED, LAMP TERMINALS FOR CONNECTION TO SAID ELECTRIC DISCHARGE LAMP, A PULSE TRANSFORMER HAVING PRIMARY AND SECONDARY WINDINGS, PULSE SWITCHING MEANS, AND A PAIR OF CAPACITORS, ONE OF SAID CAPACITORS BEING CONNECTED ACROSS SAID OUTPUT TERMINALS TO FORM A CHARGING CIRCUIT, THE PRIMARY OF SAID TRANSFORMER, SAID PULSE SWITCHING MEANS, AND THE OTHER OF SAID CAPACITORS BEING CONNECTED IN SERIES ACROSS SAID OUTPUT TERMINALS TO FORM A DISCHARGING CIRCUIT, AND THE SECONDARY OF SAID TRANSFORMER AND SAID LAMP TERMINALS BEING CONNECTED IN SERIES ACROSS SAID OUTPUT TERMINALS TO FORM AN OPERATING CIRCUIT, SAID PULSE SWITCHING MEANS BEING SWITCHED ON CYCLICALLY BY THE ALTERNATING VOLTAGE APPLIED THERETO AND OPERATING THEREUPON TO DISCHARGE SAID ONE CAPACITOR INTO THE OTHER THROUGH THE PRIMARY OF SAID PULSE TRANSFORMER IN ORDER TO INDUCE A HIGH VOLTAGE PULSE IN THE SECONDARY OF SAID PULSE TRANSFORMER.
References 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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |