Patent US3089979A successfully refreshed from Google Patents.
US3089979A
Expired / Lapsed
US
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Ballast apparatus for starting and operating gaseous discharge lamps
Assignee: General Electric Co
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Filing: 1961-06-01
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Granted: 1963-05-14
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Expires: 1981-06-01
Abstract
No abstract record available.
Inventors
- 👤 Lovinger Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:19
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/20; H05B41/23; H05B41/232; H05B41/2325; Y; Y10; Y10S; Y10S315/00; Y10S315/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A BALLAST APPARATUS FOR STARTING AND OPERATING AT LEAST ONE GASEOUS DISCHARGE LAMP FROM A SOURCE OF A ALTERNATING CURRENT, SAID APPARATUS COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING INDUCTIVELY COUPLED THEREWITH ON A MAGNETIC CORE, A PAIR OF INPUT TERMINAL LEADS CONNECTED ACROSS SAID PRIMARY WINDING, A CAPACITOR CONNECTED IN SERIES CIRCUIT RELATION WITH SAID SECONDARY WINDING, SAID CAPACITOR INCLUDING A CAPACITOR ROLL DISPOSED IN CAPACITIVE RELATION WITH A CONDUCTIVE CONTAINER TO PROVIDE A PREDETERMINED CAPACITANCE, CIRCUIT MEANS INCLUCING A PAIR OF OUTPUT LEADS FOR APPLYING THE OUTPUT OF SAID TRANSFORMER ACROSS SAID LAMP AND FOR CONNECTING SAID CAPACITOR CONTAINER IN CIRCUIT WITH SAID LAMP WHEREBY SAID PREDETERMINED CAPACITANCE IS CONNECTED IN CIRCUIT ACROSS SAID LAMP TO MINIMIZE RADIO INTERFERENCE RESULTING FROM THE ARCING ACTION OF THE LAMP.
Claim 2
Dependent Claim
133 words
A BALLAST APPARATUS FOR STARTING AND OPERATING AT LEAST ONE GASEOUS DISCHARGE LAMP FROM A SOURCE OF A ALTERNATING CURRENT, SAID APPARATUS COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING INDUCTIVELY COUPLED THEREWITH ON A MAGNETIC CORE, A PAIR OF INPUT TERMINAL LEADS CONNECTED ACROSS SAID PRIMARY WINDING, A CAPACITOR CONNECTED IN SERIES CIRCUIT RELATION WITH SAID SECONDARY WINDING, SAID CAPACITOR INCLUDING A CAPACITOR ROLL DISPOSED IN CAPACITIVE RELATION WITH A CONDUCTIVE CONTAINER TO PROVIDE A PREDETERMINED CAPACITANCE, CIRCUIT MEANS INCLUCING A PAIR OF OUTPUT LEADS FOR APPLYING THE OUTPUT OF SAID TRANSFORMER ACROSS SAID LAMP AND FOR CONNECTING SAID CAPACITOR CONTAINER IN CIRCUIT WITH SAID LAMP WHEREBY SAID PREDETERMINED CAPACITANCE IS CONNECTED IN CIRCUIT ACROSS SAID LAMP TO MINIMIZE RADIO INTERFERENCE RESULTING FROM THE ARCING ACTION OF THE LAMP.
References Cited (Backward Citations)
US2824263A
Cited
US2960624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |