Patent US4184091A successfully refreshed from Google Patents.
US4184091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oppositely directed slotting wedges for retaining the winding of an electric machine stator
Assignee: Individual
•
Filing: 1976-12-28
•
Granted: 1980-01-15
•
Expires: 1996-12-28
Abstract
Abstract An electric machine stator comprises a core with slots for placing winding bars therein. The winding bars are locked within the slots by pairs of oppositely directed wedges. To eliminate the possibility of an axial displacement of the wedges and, as a result, a looseness of wedging the winding bars, the peripheral portions of extreme wedges adjoining the winding bars protrude outside the stator core and have cross slots with a band located therein which also surround the stator winding bars.
Inventors
- 👤 Garry M. Khutoretsky
- 👤 Alexandr I. Vorontsov
- 👤 Anatoly D. Ignatiev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:24
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/48; H02K3/487
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
63 words
In an electric machine stator comprising a core with longitudinal slots for placing therein a winding constituted by bars retained by oppositely directed wedges, the improvement comprising in that peripheral portions of extreme oppositely directed wedges adjoining the winding bars protrude outside the stator core and have cross slots, and a band located in said cross slots which surrounds the stator winding bars.
Claim 2
Dependent Claim
63 words
In an electric machine stator comprising a core with longitudinal slots for placing therein a winding constituted by bars retained by oppositely directed wedges, the improvement comprising in that peripheral portions of extreme oppositely directed wedges adjoining the winding bars protrude outside the stator core and have cross slots, and a band located in said cross slots which surrounds the stator winding bars.
Claim 3
Dependent Claim
30 words
In an electric machine stator as defined in claim 1, wherein said oppositely directed wedges include upper and lower wedges, and said cross slots are formed in said lower wedges.
References Cited (Backward Citations)
US1320126A
Cited
CA591672A
Cited
US1375699A
Cited
US1396525A
Cited
SU28811A1
Cited
DE657423C
Cited
DE761181C
Cited
US2569278A
Cited
US2723358A
Cited
US3139550A
Cited
US3740601A
Cited
US3778891A
Cited
US4015156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |