US3146420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural part core inductor comprising edge-wound core section
Assignee: Individual
•
Filing: 1962-02-19
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Granted: 1964-08-25
•
Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Knobel Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
H; H01; H01F; H01F30/00; H01F30/06; H01F30/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A MAGNETIC CORE REACTOR COIL FOR USE AS A CHOKE OR TRANSFORMER PARTICULARLY WITH A FLUORESCENT TUBE, SAID REACFOR COIL COMPRISING AN ELONGATED INNER CORE OF MAGNETIC MATERIAL, A WINDING ABOUT SAID INNER CORE HAVING AN AXIS TRANSVERSE THERETO, AND AN OUTER TUBULAR MEMBER SURROUNDING SAID WINDING AND BEING AN EDGEWISE COILED, CONTINUOUS, RECTANGULAR BAND OF FERROMAGNETIC MATERIAL WHOSE AXIS IS PARALLEL TO SAID INNER CORE, SAID BAND BEING HELICALLY WOUND AND HAVING ITS ADJACENT CONVOLUTIONS CONTIGUOUS AND TOUCHING EACH OTHER.
Claim 2
Dependent Claim
81 words
A MAGNETIC CORE REACTOR COIL FOR USE AS A CHOKE OR TRANSFORMER PARTICULARLY WITH A FLUORESCENT TUBE, SAID REACFOR COIL COMPRISING AN ELONGATED INNER CORE OF MAGNETIC MATERIAL, A WINDING ABOUT SAID INNER CORE HAVING AN AXIS TRANSVERSE THERETO, AND AN OUTER TUBULAR MEMBER SURROUNDING SAID WINDING AND BEING AN EDGEWISE COILED, CONTINUOUS, RECTANGULAR BAND OF FERROMAGNETIC MATERIAL WHOSE AXIS IS PARALLEL TO SAID INNER CORE, SAID BAND BEING HELICALLY WOUND AND HAVING ITS ADJACENT CONVOLUTIONS CONTIGUOUS AND TOUCHING EACH OTHER.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |