US3594597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for fixing stator winding bars in the slots of electric machines
Assignee: Individual
•
Filing: 1969-12-24
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Granted: 1971-07-20
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Expires: 1989-12-24
Abstract
Abstract A device for fixing stator winding bars in the slots of electrical machines, comprises a wedge constituted of two portions of which one is placed into a longitudinal groove in the other portion; an elastic member is provide between the wedge portions to create an interference between the wedge and the bar, the elastic member being adapted, while in operation, to press one of the wedge portions against the winding bar.
Inventors
- 👤 Vasily Semenovich Kildishev
- 👤 Boris Leonidovich Konovalov
- 👤 Alexandr Abramovic Chigirinsky
- 👤 Lazar Yankelevich Stanislavsky
- 👤 Boris Volkovich Spivak
- 👤 Vladimir Grigorievich Rakogon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:12
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/48; H02K3/487
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
78 words
A device for fixing stator winding bars in the slots of electrical machines, said device comprising: a wedge constituted by first and second portions, the first portion having a longitudinal groove therein, the second portion being slidably received in said groove, an elastic member placed in said groove and between said portions to press, while in operation, one of the wedge portions against a winding bar so as to provide an interference between the wedge and the bar.
Claim 2
Independent Claim
78 words
A device for fixing stator winding bars in the slots of electrical machines, said device comprising: a wedge constituted by first and second portions, the first portion having a longitudinal groove therein, the second portion being slidably received in said groove, an elastic member placed in said groove and between said portions to press, while in operation, one of the wedge portions against a winding bar so as to provide an interference between the wedge and the bar.
Claim 3
Dependent Claim
46 words
A device as claimed in claim 1, wherein said elastic member has supporting ends, and said device comprises protective separators between said wedge and said supporting ends of the elastic member to isolate said ends and prevent the formation of locally worn regions in said wedge.
Claim 4
Dependent Claim
37 words
A device as claimed in claim 2, comprising means for interconnecting both of said wedge portions to press the wedge portions against each other and permit insertion of the wedge into a slot of the stator core.
Claim 5
Dependent Claim
28 words
A device as claimed in claim 3, wherein said means for interconnecting the wedge portions comprises a fastener engaged in one portion and threaded in the other portion.
Claim 6
Dependent Claim
56 words
A device as claimed in claim 1 wherein said second portion of the wedge has ends with projections embracing said first portion at the ends thereof, said ends being engageable to press the wedge portions together against the opposition of the elastic member to permit insertion of the wedge into a slot of the stator core.
Claim 7
Dependent Claim
20 words
A device as claimed in claim 5 wherein said ends have recesses therein for facilitating the engagement of said ends.
Claim 8
Dependent Claim
42 words
A device as claimed in claim 1 comprising means for temporarily pressing the wedge portions together against the opposition of the elastic member to permit insertion of the wedge into a slot of the rotor core whereafter the means can be disabled.
Claim 9
Dependent Claim
23 words
A device as claimed in claim 7 wherein said means for pressing the wedge portions together comprises removable attachment means interconnecting wedge portions.
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |