US3648091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stator bar winding of electric machine
Assignee: Individual
•
Filing: 1970-06-11
•
Granted: 1972-03-07
•
Expires: 1990-06-11
Abstract
Abstract A stator bar winding for an electric machine in which the heads of end connections of the winding are insulated by means of cups and cavities between the heads and the cups are filled with an insulating compound. Between adjacent cups, there are provided spacers secured against displacements at least on one side, by supports on the lateral surface of said cups. The spacers may be made in the form of wedges and inserts.
Inventors
- 👤 Konstantin Fedorovich Kostin
- 👤 Georgy Konstantinovich Sapunov
- 👤 Alvian Afanasievich Svirin
- 👤 Valery Ivanovich Strakhov
- 👤 Grigory Iosifovich Shur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:31
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/46; H02K3/50; H02K3/505
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
62 words
A stator bar winding for an electric machine comprising in combination: end connections including heads, spaced cups insulAting said heads of said end connections, spaces being provided between said heads and said cups, an insulating compound filling said spaces, spacers mounted between the adjacent cups, and supports on at least one of the lateral surfaces of said cups for fixing said spacers.
Claim 2
Dependent Claim
62 words
A stator bar winding for an electric machine comprising in combination: end connections including heads, spaced cups insulAting said heads of said end connections, spaces being provided between said heads and said cups, an insulating compound filling said spaces, spacers mounted between the adjacent cups, and supports on at least one of the lateral surfaces of said cups for fixing said spacers.
Claim 3
Dependent Claim
22 words
A stator bar winding as claimed in claim 1, in which said spacers are wedges, said supports fixing said wedges in position.
Claim 4
Dependent Claim
22 words
A stator bar winding as claimed in claim 1, in which said spacers are inserts, said supports fixing said inserts in position.
Claim 5
Dependent Claim
23 words
A stator bar winding as claimed in claim 3, in which said spacers are thread-interconnected inserts, said supports fixing said inserts in position.
Claim 6
Dependent Claim
29 words
A stator bar winding as claimed in claim 3, in which the inserts are interconnected and are provided with intercommunicating chambers, comprising a self-solidifying insulating compound in said chambers.
Claim 7
Dependent Claim
31 words
A stator bar winding as claimed in claim 5, in which the spaces between the heads and cups and the insert chambers intercommunicate and are filled with said self-solidifying insulating compound.
Claim 8
Dependent Claim
27 words
A stator bar winding as claimed in claim 4, in which the inserts include terminal spherical surfaces and engage in corresponding spherical surfaces provided in the supports.
Claim 9
Dependent Claim
39 words
A stator bar winding as claimed in claim 3, comprising and in which the connection of the inserts to the supports is made by pivot joints provided with gaps filled with a self-solidifying compound for fixing said pivot joints.
References Cited (Backward Citations)
DE331894C
Cited
US3151260A
Cited
DE1190555B
Cited
GB1021407A
Cited
US3435517A
Cited
US3365600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |