US3392310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High leakage transformer and gaseous discharge lamp circuit regulated by such transformer
Assignee: Advance Transformer Co
•
Filing: 1955-05-31
•
Granted: 1968-07-09
•
Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Albert E Feinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:32
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/08; H01F38/10; 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: 2
Claim 1
Independent Claim
126 words
APPARATUS FOR SUPPLYING A LEADING CURRENT TO A GASEOUS DISCHARGE DEVICE COMPRISING PRIMARY AND SECONARY COILS AND AN IRON CORE COUPLING THE TWO, THE SECONDARY BEAING OF AN AXIAL LENGTH GREATER THAN 1.5 TIMES ITS DIAMETER, SAID CORE HAVING A MAGNETIC PORTION EXTENDING LENGTHWISE OF THE SECONDARY AND ADJACENT THERETO AND CONSTITUTING A PART OF THE LEAKAGE FLUX PATH OF THE SECONDARY AND HAVING NON-MAGNETIC GAPS IN SERIES WITH ONE ANOTHER AND SPACED FROM ONE ANOTHER LENGTHWISE OF THE SECONDARY BY AN AMOUNT WHICH IS A SUBSTANTIAL FRACTIONAL PART OF THE AXIAL LENGTH OF THE SECONDARY, THE WIDTH OF THE MAGNETIC MATERIAL LEFT IN THE PRIMARY FLUX PATH OF THE MAGNETIC PORTION AT EACH GAP BEING A MINOR FRACTIONAL PART OF THE DISTANCE BETWEEN ADJACENT GAPS.
Claim 2
Dependent Claim
126 words
APPARATUS FOR SUPPLYING A LEADING CURRENT TO A GASEOUS DISCHARGE DEVICE COMPRISING PRIMARY AND SECONARY COILS AND AN IRON CORE COUPLING THE TWO, THE SECONDARY BEAING OF AN AXIAL LENGTH GREATER THAN 1.5 TIMES ITS DIAMETER, SAID CORE HAVING A MAGNETIC PORTION EXTENDING LENGTHWISE OF THE SECONDARY AND ADJACENT THERETO AND CONSTITUTING A PART OF THE LEAKAGE FLUX PATH OF THE SECONDARY AND HAVING NON-MAGNETIC GAPS IN SERIES WITH ONE ANOTHER AND SPACED FROM ONE ANOTHER LENGTHWISE OF THE SECONDARY BY AN AMOUNT WHICH IS A SUBSTANTIAL FRACTIONAL PART OF THE AXIAL LENGTH OF THE SECONDARY, THE WIDTH OF THE MAGNETIC MATERIAL LEFT IN THE PRIMARY FLUX PATH OF THE MAGNETIC PORTION AT EACH GAP BEING A MINOR FRACTIONAL PART OF THE DISTANCE BETWEEN ADJACENT GAPS.
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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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |