US3560776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slot closers for an electrical machine
Assignee: Individual
•
Filing: 1969-04-25
•
Granted: 1971-02-02
•
Expires: 1989-04-25
Abstract
Abstract A stator for an electrical machine is composed of a core with slots containing winding bars completely filling the entire spaces of the core slots and projecting therefrom into slots formed in an insulating cylinder accommodated within the bore of the core. Rigid connectors such as wedges are interposed between the cylinder and the winding bars for securing the bars in the slots. The cylinder may be constituted by a plurality of separate rings in which case separate wedges are employed for each ring in each of the slots thereof.
Inventors
- 👤 Vasily Semenovich Kildishev
- 👤 Vadim Borisovich Kaplunov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:53
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/48; H02K3/487
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
A stator for an electrical machine, comprising: a core with a bore and slots; winding bars having a height greater than the depth of the core slots and filling the entire spaces of said core slots and projecting therefrom; a cylinder of insulating material accommodated within the bore of said core, said cylinder having an outer surface with slots adjoining respective slots of said core and receiving the projecting portions of the winding bars; and rigid connector means located between said cylinder and said winding bars for securing said bars in said slots, said rigid connector means being wholly confined within the slots in said cylinder.
Claim 2
Dependent Claim
106 words
A stator for an electrical machine, comprising: a core with a bore and slots; winding bars having a height greater than the depth of the core slots and filling the entire spaces of said core slots and projecting therefrom; a cylinder of insulating material accommodated within the bore of said core, said cylinder having an outer surface with slots adjoining respective slots of said core and receiving the projecting portions of the winding bars; and rigid connector means located between said cylinder and said winding bars for securing said bars in said slots, said rigid connector means being wholly confined within the slots in said cylinder.
Claim 3
Dependent Claim
35 words
A stator for an electrical machine as claimed in claim 1, wherein said means for securing said bars in said slots comprises fastening wedges accommodated within the slots on the outer surface of said cylinder.
Claim 4
Dependent Claim
22 words
A stator for an electrical machine as claimed in claim 2, wherein said cylinder is constituted by a plurality of separate rings.
Claim 5
Dependent Claim
37 words
A stator for an electrical machine as claimed in claim 3, wherein said fastening wedges are present in a respective plurality as said separate rings to provide a separate wedge in a respective slot in each ring.
Claim 6
Dependent Claim
20 words
A stator for an electrical machine as claimed in claim 4, wherein each wedge is constituted by two wedge elements.
References Cited (Backward Citations)
US1396521A
Cited
US3330977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |