US3223866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternator
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1960-09-13
•
Granted: 1965-12-14
•
Expires: 1980-09-13
Abstract
No abstract record available.
Inventors
- 👤 Tiltins Janis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:47
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/22; H02K19/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN AN ALTERNATOR, A STATOR OF MAGNETIC MATERIAL, A HOUSING OF MAGNETIC MATERIAL HAVING A CYLINDRICAL PERMANENT MAGNET PORTION SURROUNDING SAID STATOR AND HAVING A PAIR OF WALLS SPACED AXIALLY FROM THE OPPOSITE ENDS OF SAID STATOR, SAID PERMANENT MAGNET BEING PROVIDED FOR INDUCING A NORTH MAGNETIC POLE IN ONE OF SAID WALLS AND A SOUTH MAGNETIC POLE IN THE OTHER, A ROTOR OF A DIAMETER LESS THAN THE INNER DIAMETER OF THE STATOR JOURNALED FOR ROTATION WITHIN THE STATOR, SAID ROTOR COMPRISING A PAIR OF OPPOSED SECTIONS OF MAGNETIC MATERIAL RESPECTIVELY COUPLED MAGNETICALLY TO SAID PAIR OF WALLS, AND AT LEAST ONE FINGER OF MAGNETIC MATERIAL PROJECTING AXIALLY FROM EACH OF THE ROTOR SECTIONS TOWARD THE OTHER, SAID FINGERS
Claim 2
Dependent Claim
120 words
IN AN ALTERNATOR, A STATOR OF MAGNETIC MATERIAL, A HOUSING OF MAGNETIC MATERIAL HAVING A CYLINDRICAL PERMANENT MAGNET PORTION SURROUNDING SAID STATOR AND HAVING A PAIR OF WALLS SPACED AXIALLY FROM THE OPPOSITE ENDS OF SAID STATOR, SAID PERMANENT MAGNET BEING PROVIDED FOR INDUCING A NORTH MAGNETIC POLE IN ONE OF SAID WALLS AND A SOUTH MAGNETIC POLE IN THE OTHER, A ROTOR OF A DIAMETER LESS THAN THE INNER DIAMETER OF THE STATOR JOURNALED FOR ROTATION WITHIN THE STATOR, SAID ROTOR COMPRISING A PAIR OF OPPOSED SECTIONS OF MAGNETIC MATERIAL RESPECTIVELY COUPLED MAGNETICALLY TO SAID PAIR OF WALLS, AND AT LEAST ONE FINGER OF MAGNETIC MATERIAL PROJECTING AXIALLY FROM EACH OF THE ROTOR SECTIONS TOWARD THE OTHER, SAID FINGERS
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |