US3401310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and circuit for rapid excitation of a magnetic-field device
Assignee: Binder Magnete GmbH
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Filing: 1965-12-21
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Granted: 1968-09-10
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Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Schaffersmann Heinz
- 👤 Tuchen Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/722; H03K17/723; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/18; H01F7/1805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE METHOD OF RAPIDLY EXCITING THE MAGNETIC FIELD OF AN ELECTROMAGNETIC DEVICE, WHICH COMPRISES DERIVING SEVERAL MUTUALLY SUPERIMPOSED RECTIFIED SINGLE-PHASE VOLTAGES OF RESPECTIVELY DIFFERENT MAXIMAL MAGNITUDES FROM A MULTIPHASE ALTERNATING VOLTAGE SUPPLY, IMPRESSING SAID LATTER VOLTAGES UPON THE DEVICE WHEN COMMENCING THE EXCITATION, DISCONTINUING SAID SUPERIMPOSED VOLTAGES WHEN THE CURRENT IN THE DEVICE HAS REACHED AN INTENSITY ABOVE THE RATED EXCITATION VALUE, AND THEN CONTINUING THE EXCITATION BY APPLYING NORMAL EXCITATION DIRECT VOLTAGE TO THE DEVICE.
Claim 2
Independent Claim
76 words
THE METHOD OF RAPIDLY EXCITING THE MAGNETIC FIELD OF AN ELECTROMAGNETIC DEVICE, WHICH COMPRISES DERIVING SEVERAL MUTUALLY SUPERIMPOSED RECTIFIED SINGLE-PHASE VOLTAGES OF RESPECTIVELY DIFFERENT MAXIMAL MAGNITUDES FROM A MULTIPHASE ALTERNATING VOLTAGE SUPPLY, IMPRESSING SAID LATTER VOLTAGES UPON THE DEVICE WHEN COMMENCING THE EXCITATION, DISCONTINUING SAID SUPERIMPOSED VOLTAGES WHEN THE CURRENT IN THE DEVICE HAS REACHED AN INTENSITY ABOVE THE RATED EXCITATION VALUE, AND THEN CONTINUING THE EXCITATION BY APPLYING NORMAL EXCITATION DIRECT VOLTAGE TO THE DEVICE.
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |