Patent US3383554A successfully refreshed from Google Patents.
US3383554A
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US
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Circuits for energizing parallel connected gaseous discharge devices and maintaining the discharge therein
Assignee: Westinghouse Electric Corp
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Filing: 1966-08-10
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Granted: 1968-05-14
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Expires: 1986-08-10
Abstract
No abstract record available.
Inventors
- 👤 Wendell A Oglesbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:27
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/20; H05B41/23; H05B41/232; Y; Y10; Y10S; Y10S315/00; Y10S315/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A CIRCUIT FOR OPERATING A PLURALITY OF GAS-DISCHARGE DEVICES AT PREDETERMINED AND ADJUSTABLE BRIGHTNESSES, SAID CIRCUIT COMPRISING: A PLURALITY OF PARALLEL-CONNECTED CIRCUIT BRANCHES ADAPTED TO BE CONNECTED TO A SOURCE OF ALTERNATING CURRENT; AT LEAST ONE DISCHARGE DEVICE CONNECTED SERIALLY IN EACH OF SAID CIRCUIT BRANCHES; AN ADJUSTABLE CURRENT-LIMITING MEANS SERIALLY CONNECTED BETWEEN THE SOURCE OF ALTERNATING CURRENT AND SAID PLURALITY OF CIRCUIT BRANCHES FOR CONTROLLING THE CURRENT THROUGH SAID DISCHARGE DEVICES AND ADJUSTING THE BRIGHTNESS THEREOF; AT LEAST ONE DISCHARGE DEVICE CONNECTED SERIALLY IN EACH OF SAID CIRCUIT BRANCHES; A BALLAST MEANS SERIALLY CONNECTED WITH SAID AT LEAST ONE DISCHARGE DEVICE IN EACH OF SAID CIRCUIT BRANCHES FOR BALLASTING SAID DISCHARGE DEVICES; AND
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |