US3230408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial airgap electric rotary machines
Assignee: Printed Motors Inc
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Filing: 1961-03-03
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Granted: 1966-01-18
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
- 👤 Henry-Baudot Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:52
CPC Classifications
H; H02; H02K; H02K23/00; H02K23/54; H02K23/60; H02K23/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ASSEMBLY FOR AN AXIAL AIR-GAP TYPE OF ELECTRIC MACHINE COMPRISING, IN COMBINATION, FIRST AND SECOND SLEEVES HAVING THE SAME INTERNAL DIAMETERS AND ARRANGED IN AXIAL ALIGNMENT, MEANS CONSISTING OF A BEARING SUPPORTING SAID SECOND SLEEVE ON SAID FIRST SLEEVE AND JOINING ADJACENT ENDS OF SAID SLEEVES CARRIED BY THE OTHER AND HOLDING SAID SLEEVESIN AXIAL ALIGNMENT AND FOR RELATIVE ROTATION ABOUT A COMMON AXIS, A MAGNETIC FIELD STURCTURE CARRIED ENTIRELY BY SAID FIRST SLEEVE AND INCLUDING MAGNETIC PARTS FORMING A NARROW ANNULAR AIR-GAP CONCENTRIC WITH SAID COMMON AXIS AND SURROUNDING SAID SECOND SLEEVE, AND A DISC-TYPE ARMATURE MOUNTED ON SAID SECOND SLEEVE AND CARRYING AN ANNULAR WINDING LOCATED IN SAID ANNULAR AIR-GAP, SAID MAGNETIC PARTS BEING MAGNETIZED TO ESTABLISH A MAGNETIC FLUX ACROSS SAID AIR-GAP AND PASSING THROUGH SAI WINDING.
Claim 2
Dependent Claim
131 words
AN ASSEMBLY FOR AN AXIAL AIR-GAP TYPE OF ELECTRIC MACHINE COMPRISING, IN COMBINATION, FIRST AND SECOND SLEEVES HAVING THE SAME INTERNAL DIAMETERS AND ARRANGED IN AXIAL ALIGNMENT, MEANS CONSISTING OF A BEARING SUPPORTING SAID SECOND SLEEVE ON SAID FIRST SLEEVE AND JOINING ADJACENT ENDS OF SAID SLEEVES CARRIED BY THE OTHER AND HOLDING SAID SLEEVESIN AXIAL ALIGNMENT AND FOR RELATIVE ROTATION ABOUT A COMMON AXIS, A MAGNETIC FIELD STURCTURE CARRIED ENTIRELY BY SAID FIRST SLEEVE AND INCLUDING MAGNETIC PARTS FORMING A NARROW ANNULAR AIR-GAP CONCENTRIC WITH SAID COMMON AXIS AND SURROUNDING SAID SECOND SLEEVE, AND A DISC-TYPE ARMATURE MOUNTED ON SAID SECOND SLEEVE AND CARRYING AN ANNULAR WINDING LOCATED IN SAID ANNULAR AIR-GAP, SAID MAGNETIC PARTS BEING MAGNETIZED TO ESTABLISH A MAGNETIC FLUX ACROSS SAID AIR-GAP AND PASSING THROUGH SAI WINDING.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |