Patent US3077549A successfully refreshed from Google Patents.
US3077549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnet indicator alternator
Assignee: General Electric Co
•
Filing: 1960-04-07
•
Granted: 1963-02-12
•
Expires: 1980-04-07
Abstract
No abstract record available.
Inventors
- 👤 William B Zelina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:10
CPC Classifications
H; H02; H02K; H02K21/00; H02K21/38; G; G01; G01P; G01P3/00; G01P3/42; G01P3/44; G01P3/48; G01P3/481; G01P3/488
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
AN ALTERNATOR COMPRISING, A STATOR HAVING ALTERNATELY POLED EQUALLY SPACED PERMANENT MAGNETS POSITIONED ABOUT THE PERIPHERY OF SAID STATOR, A CIRCULAR PICK-UP COIL CONCENTRICALLY MOUNTED ON SAID STATOR AND POSITIONED TO SENSE CHANGES OF FLUX EMANATING FROM SAID PERMANENT MAGNETS, A ROTOR HAVING FLUX SWITCHES ARRANGED TO CONDUCT FLUX FROM ONE POLE OF EACH OF SAID PERMANENT MAGNETS OF ONE POLARITY THROUGH SAID PICK-UP COIL GENERALLY AT RIGHT ANGLES TO THE PLANE OF SAID COIL TO THE OPPOSITE POLE OF EACH OF SAID PERMANENT MAGNETS OF ONE POLARITY, AND FLUX SHUNTS MOUNTED ON SAID ROTOR BETWEEN SAID FLUX SWITCHES AND ARRANGED TO CONDUCT FLUX FROM ONE POLE OF EACH OF THE ALTERNATE PERMANENT MAGNETS TO THE OPPOSITE POLE OF EACH OF SAID ALTERNATE PERMANENT MAGNETS.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |