US3159760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction motor with magnetic control
Assignee: Regulator AG
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Filing: 1961-11-14
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Granted: 1964-12-01
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Expires: 1981-11-14
Abstract
No abstract record available.
Inventors
- 👤 Olofsson Erik Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:51
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/26; C; C09; C09K; C09K5/00; C09K5/08; C25; C25B; C25B3/00; C25B3/20; C25B3/27; C25B3/28; H02K99/00; H02K99/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
ELECTRIC MOTOR COMPRISING AN INSULATING DISC MOUNTED FOR ROTATION IN ITS OWN PLANE, AN ELECTRIC CIRCUIT APPLIED TO THE FLAT FACE OF SAID DISC, A RECTIFIER ATTACHED TO SAID DISC AND CONNECTED INTO SAID CIRCUIT SO AS TO ALLOW CURRENT IN ONE DIRECTION ONLY THERETHROUGH, A FIRST ELECTROMAGNET ADAPTED FOR CREATING AN ALTERNATING MAGNETIC FIELD THROUGH A PERIPHERAL PART OF SAID DISC, A SECOND ELECTROMAGNET FOR CREATING AN UNIDIRECTIONAL MAGNETIC FIELD THROUGH ANOTHER PERIPHERAL PART OF THE DISC, AND A MEANS FOR REVERSING THE DIRECTION OF CURRENT THROUGH SAID SECOND ELECTROMAGNET.
References Cited (Backward Citations)
FR1192094A
Cited
US3056058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |