US3308318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric machine having concentric rotors with an intermediate stator
Assignee: General Electric Co
•
Filing: 1965-08-03
•
Granted: 1967-03-07
•
Expires: 1985-08-03
Abstract
No abstract record available.
Inventors
- 👤 Raymond M Dunaiski
- 👤 Howard D Snively
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:20
CPC Classifications
H; H02; H02K; H02K16/00; H02K16/02; H02K23/00; H02K23/60; H02K5/00; H02K5/04; H02K5/16; H02K5/167; H02K5/1672
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A CONTRA-ROTATING MOTOR COMPRISING A FRAME ENCLOSING A SHAFT SUPPORTING A FIRST ARMATURE HAVING A WINDING THEREIN, A SECOND SHAFT SUPPORTED ARMATURE CONCENTRICALLY DISPOSED WITH RESPECT TO SAID FIRST ARMATURE AND EQUIPPED WITH A WINDING, SEPARATE MEANS RESPECTIVELY CONNECTED WITH SAID WINDINGS FOR FURNISHING ELECTRIC POWER THERETO, AND A STATIONARY FIELD STRUCTURE BETWEEN SAID ARMATURES INCLUDING A MULTIPLICITY OF FIELD POLES HAVING WINDINGS THEREON, POSITIONED FOR ELECTRODYNAMIC COOPERATION WITH
Claim 2
Dependent Claim
69 words
A CONTRA-ROTATING MOTOR COMPRISING A FRAME ENCLOSING A SHAFT SUPPORTING A FIRST ARMATURE HAVING A WINDING THEREIN, A SECOND SHAFT SUPPORTED ARMATURE CONCENTRICALLY DISPOSED WITH RESPECT TO SAID FIRST ARMATURE AND EQUIPPED WITH A WINDING, SEPARATE MEANS RESPECTIVELY CONNECTED WITH SAID WINDINGS FOR FURNISHING ELECTRIC POWER THERETO, AND A STATIONARY FIELD STRUCTURE BETWEEN SAID ARMATURES INCLUDING A MULTIPLICITY OF FIELD POLES HAVING WINDINGS THEREON, POSITIONED FOR ELECTRODYNAMIC COOPERATION WITH
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |