Patent US3072814A successfully refreshed from Google Patents.
US3072814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary machines for converting electrical energy
Assignee: Normacem SA
•
Filing: 1961-02-13
•
Granted: 1963-01-08
•
Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Moressee George
- 👤 Dechet Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:58
CPC Classifications
H; H02; H02K; H02K47/00; H02K47/12; H02K47/16; H02K3/00; H02K3/04; H02K3/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
84 words
A ROTARY ELECTRIC MACHINE OF THE SO-CALLED "METADYNE" TYPE, COMPRISING A FIELD MAGNET WHICH INCLUDES TWO SPACED SETS OF POLES ARRANGED IN SUBSTANTIALLY PARALLEL PLANES AND DEFINING THEREBETWEEN A GENERALLY PLANAR AIRGAP, AND THE POLES OF EACH OF SAID SETS BEING OFFSET ELECTRICALLY BY 90 DEGREES RELATIVELY TO THE POLES OF THE OTHER OF SAID SETS, A DISK-SHAPED ARMATURE ROTATABLY DISPOSED IN SAID AIR-GAP IN CONCENTRIC RELATION TO SAID POLES AND HAVING A FLAT WINDING COMPRISING STRIP CONDUCTORS, AND MEANS FOR ROTATING SAID ARMATURE.
References Cited (Backward Citations)
CH174775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |